SlideShare a Scribd company logo
1 of 57
Download to read offline
Case Studies of RVRS design; Use of
Light Weight Panelized Construction in
Multiple Projects
OBEC
March 2016
Blair Davies, P.Eng
VP GM Engineered Assemblies
- March 9, 2016page 1
Engineered Assemblies
“Unite the House of Design with The Field of Construction”
–  Thermally Broken RVRS Facades
–  Daylighting
–  High performance Metal Roofs
Partners
»  Etex - Imetco
»  Composites Gurea - SRP Canada
»  Formica - AWF
»  Gentas - CPI Daylighting
>1000 projects; no warranty claims, no non payment for non performance
Sister company Praxy installation Ontario
- March 9, 2016page 2
Speaker
Blair Davies, P.Eng
–  BaSc University of Waterloo – Civil Engineering
–  MBA Schulich School of Business
–  Building envelope business since 2008
–  Buildings across Canada
- March 9, 2016page 3
Agenda
•  Introduction – does all this matter?
•  What matters
•  Definition and history
–  DIN 18516
–  British Standards
•  Pressure Equalization – the debate
•  Case Study #1
–  Parliament St Data Centre – ceramic
•  Case Study #2
–  McLean Park Towers – fibre cement
•  Case Study #3
–  88 Sheppard, Minto – fibre cement
•  Case Study #4
–  2 Virtue Street – fibre cement recladding
•  Case Study # 5
–  Addington Residence – ceramic recladding
•  Unanswered questions
•  Conclusion
•  Ontario Building Code
•  Discussion
- March 9, 2016page 4
Is all this necessary?
- March 9, 2016page 5
What matters
•  Ventilation
•  Drainage
•  Thermal Bridging
•  Secure
•  Impact
•  Weight
•  Durable
•  Constructible
•  Climate and weather
•  Acoustics
- March 9, 2016page 6
Light weight matter?
•  Fibre cement 15 kg/m2
•  Ceramic 35 – 50 kg/m2
•  Metal 4.5-7.3 kg/m2
•  Steel stud wall; insulation;
thermally broken substructure
20kg/m2 (GUESS)
•  Brick 174 kg/m2
•  Precast(300mm) 718 kg/m2
•  EIFS (100mm) 8 kg/m2
•  Curtain wall 49 kg/m2
- March 9, 2016page 7
Define RVRS
•  Cladding stands off the moisture resistant surface
to create a drainage plane and ventilation cavity.
•  Vertical cavity for stack effect and capillary break.
•  The wall open top and bottom to allow ventilation,
•  Intermediate gaps open or closed; aesthetic decision.
•  Insulated or non-insulated.
- March 9, 2016page 8
Source: Wikipedia
- March 9, 2016page 9
•  Framing – stud, concrete,
brick, etc
•  Sheathing, AVB
•  Insulation
•  Weather barrier
•  Cavity
•  Panels
•  Thermally
Broken
substructure
- March 9, 2016page 10
Detail in
practice
11	
Key Attributes of RVRS Facades?
•  Remove water and vapour in active, natural manner from assembly
•  Exterior takes abuse of the weather - full heat, the sun, the wind…
•  Ventilation helps the building AND the façade product
•  Accommodates any amount of insulation
•  Insulation is always drying - better effective R
•  Simpler, more easily built and inspected - no caulking
•  Lighter thinner systems than concrete and brick
•  Unlimited choice in panel selection.
•  Better energy efficiency than most curtain wall
•  Less expensive than many other systems
History and Standards
•  Ventilated façade in Europe
–  DIN 18516 – German Construction Standard
•  Specifies all key attributes
•  Spacing behind panel minimum 20mm
–  CWCT H92
–  NBS British Construction Standard
•  Canadian Construction Technology Update
–  1963 NRC
–  1999 CTU
–  Cladding leakage area to Ventilation area suggested 10:1
•  USA NIBS
- March 9, 2016page 12
DIN 18516
•  Covers
–  Scope and field of application
–  Concepts
–  Requirements
–  Design loads, thermal effects and structural movements
–  Structural analysis
–  Protection of materials
–  Testing of connectors, fixing and ties
–  Documentation
–  Inspection
- March 9, 2016page 13
NBS Section H92
•  Vertical building envelope; Outer skin
•  Airtight insulated backing wall, separate by ventilated cavity
•  Key distinction is that curtain walling is usually the whole
envelope, while rainscreen cladding is the outer protective
layer of the envelope.
- March 9, 2016page 14
Business Opportunity
•  Materials developed to leverage RVRS mostly from Europe
–  High density fibre cement
–  Glass reinforced concrete
–  Phenolic
–  Ceramic
–  Porcelain
–  Metals
–  Stone laminates
–  Wood panels
–  Hybrids
•  Subsystems
•  Design
•  Labour
- March 9, 2016page 15
RVRS suitable for all building types
HouseCondo HotelUniversity SchoolHospital
Alcoa building pittsburgh
1950 1st modern use
Walter Gropius,
gropiusstadt, Berlin,
b1960-1975
Eternit panels in high
rise ventilated facade
application
Pressure Equalization •  Ideal
•  Ambiguous
•  Planning ≠ Actual
•  Structural considerations
•  Not part of European standards
- March 9, 2016page 19
Sources include: National Building Service UK 1-Jan-2010 “Rainscreen cladding; letting air in to keep rain out”
P.E. - compartmentalization
•  Horizontal closures so air can get in, but can’t get out
•  Seeing specifications with compartmentalization
•  Some study that at façade corners and parapets this helps PE.*
•  Europeans products do not recognize this practice
- March 9, 2016page 20
Source: MCA Whitepaper 11/2014 v2
NRC CTU no 17 1998
Graphic by Nichiha
Rain Screen Membrane
•  Water resistant, water vapour permeable membrane
•  Secondary drainage plane
•  Aesthetic black reveal with long term UV resistance
for open joint systems
•  Can be the deemed air barrier if sealed
•  Installed directly behind cladding
- March 9, 2016page 21
Weather Membrane
§ For Closed Joint Systems (with no long term UV)
•  High WVT 150 perms
•  120 g/m2
•  Drainage Plane
•  CCMC listed
•  Air Barrier
Courtesy
Drying Rate
MVTR (perms)Comparison
0
20
40
60
80
100
120
140
160
Prod 1 Prod 2 Prod 3 Prod 4
Perms
Perms
Courtesy
Weather membrane UV
§ For Open Joint Wall Systems (long term UV)
•  Long Term UV Resistance
l  DIN EN 13859 (5,000 hours exposure <5% loss)
•  Drainage Plane
•  Air Barrier
courtesy
26
27
Installation
Ø  Attachment
l Over insulation, behind cladding
l Clips or system support, screws with plates
Ø  Overlapping
l Shingle style with 6 inch overlap
Ø  Seams
l Tape vertical seams and details
l Tape all seams in Air Barrier installations
•  Robust
•  Breathable
•  Water Resistant
•  UV Resistant
Why Weather Membrane?
Panels
page 29
Zinc
ACP
FRC &
GFRC
Phenolic
PorcelainCeramic
ACP
Stone
veneer
Unlimited choice
All conditions have been done
- March 9, 2016page 30
Case Study 1
Data Centre
•  Parliament St Data Centre
•  Cladding, cavity, WB, Insulation, Thermally broken substructure,
AVB, framing.
•  Effective R Value Goal 21
•  Extruded Ceramic (35kg/m2) + Ceramic Baguettes
•  Cavity dimension = 40mm vertical + 63mm.
•  Insulation type = Roxul Cavity Rock 4” (100mm)
•  WB type = SRP Airoutshield
•  AVB type = Soprema
•  Special conditions: designed for disaster conditions, so extreme
slab deflections expected
•  Why: “Relate local masonry in modern way to reflect use of
building” WZMH
•  Architect WZMH, GC Urbacon, Installer Flynn Canada
- March 9, 2016page 31
- March 9, 2016page 32
- March 9, 2016page 33
- March 9, 2016page 34
Case Study 2 - McLean Park
Towers – Tower Renewal
•  Social housing, Vancouver
•  High Density Fibre Cement, vertical girts, WB, thermally
broken substructure, AVB, Concrete
•  HDFC 14.9 kg/m2 faced fastened with colour matched rivets
•  25mm cavity with vertical galvanized steel girts
•  Roxul Cavity Rock 4” (100mm)
•  Thermally broken facade
•  Vaproshield WB
•  Soprema AVB
•  Special conditions:
•  JRS Engineering; Installer Marine Cladding
- March 9, 2016page 35
- March 9, 2016page 36
Case Study 3
88 Sheppard E, Minto
•  HDFC, Vertical girts, cavity, WB, insulation and girts, AVB,
Framing or Concrete
•  Effective R value not a goal
•  HDFC 14.9 kg/m2 adhered with Dynamic Bond Adhesive
•  Cavity dimension 25mm
•  Roxul semi-rigid rockboard 40 2” and 3”
•  Roxul curtain rock 5”SRP AirOutShield UV
•  AVB type TBD
•  Rafael + Bigauskas Architects; GC and Owner Minto; Installer Praxy Cladding
- March 9, 2016page 37
- March 9, 2016page 38
Details – need direction
- March 9, 2016page 39
- March 9, 2016page 40
AVB
WB
Case Study 4
•  2 Virtue Street
•  HDFC, girts, cavity, breather
membrane over brick
•  Un-insulated
•  HDFC 14.9 kg/m2
•  Cavity dimension 25mm
•  SRP AOS UV
•  AVB poly inside studs
- March 9, 2016page 41
- March 9, 2016page 42
Renovation adds new vigour to a sagging
Toronto home Aug 2013
Case Study 5
Addington Residence U
Guelph
•  Ceramic panels, system rails, weather
membrane, horizontal girts, sprayfoam insulation
on top of brick façade
•  Ceramic 35 kg/m2
•  Cavity dimension 20mm
•  Spray foam 4” (100mm)
•  SRP AOS non UV WB
•  Blueskin SA behind girts, Spray foam is AVB
•  Unique: Brick fastened back to block, and cavity
filled. Insulated rainscreen fastened to brick
façade
- March 9, 2016page 43
Larkin Architects; GC Harbridge and Cross; Installer AMNA
- March 9, 2016page 44
What would it take to make a real case
study – anyone?
•  Instrumentation
•  Long term study of RH in insulation
•  Measurement during weather incident
- March 9, 2016page 45
Construction Best Practices
•  5 things need to be done right to have RVRS success with
panelized products eg high density fibre cement.
1.  Ventilation top and bottom.
2.  Vertical substructure for ventilation.
3.  Panels allowed to move for thermal and for building
movement, typically with fixed and floating points.
4.  Substructure spacing set by live and dead loads.
5.  Reasonably true wall or adjustable substructure
- March 9, 2016page 46
Unanswered questions
•  What happens to wet insulation over long term?
•  Why isn’t metal panel / ACP installed as RVRS?
•  Why does OBC not cover topic completely?
•  Why are product choices in Canada limited?
- March 9, 2016page 47
Conclusion
•  RVRS Façade a significant design choice for aesthetic and
envelope performance reasons
•  Engineered extensively, mostly in Europe
•  Business opportunity for Canadians
•  A few things need to be done right, but reasonable for most
cladding trade companies to learn
•  Thankyou.
- March 9, 2016page 48
OBC
Review
•  Part 4 Structural
–  All systems can be designed for all Canadian loads by changing
spacing, gauge and material of substructure.
–  Seismic testing available for heavier facades eg ceramic. No
call yet for testing of phenolics, fibre cement, metal panel
–  Panels themselves designed to pass live loads back to
substructure, not provide any structural role to the building.
•  Part 5
–  5.1.4.2 Resistance to Deterioration
–  CSA S478 Durability of Buildings
–  5.2.2.1 Determination of Structural loads – comply
–  5.3.1 Thermal resistance – not the panels, just the insulation
layer. Expectation is cavity has higher or lower temp than
outside, improving energy usage – needs proving.
•  Important to design due point in right place between AVB and
Weather membrane
•  Penetration detailing essential – thermal bridging and air transfer
to be eliminated
–  5.4.1 Air Barrier – at least two layers of protection, insulation
may offer another or replace a barrier.
- March 9, 2016page 49
OBC
•  5.4.1.2 Air Barriers CAN/ULCS741
•  5.5.1.1 (1) assemblies shall be such that they control vapour
diffusion or permit venting to the exterior so as to minimize
accumulation of condensation in the building component or
assembly.
•  5.6.1 Protection from Precipitation
–  Except as provided in Sentence (2), where a building
component or assembly is exposed to precipitation, the
component or assembly shall,
•  (a) minimize ingress of precipitation into the component or
assembly, and
•  (b) prevent ingress of precipitation into interior space.
–  (2) Protection from ingress of precipitation is not required
where it can be shown that such ingress will not adversely
affect any of ….
•  5.6.2 Sealing and drainage – reads like sealing is good. May
have misguided intentions.
- March 9, 2016page 50
OBC •  Part 9 is different
–  9.20.13. Control of Rain Water Penetration
–  9.25.3. Air Barrier Systems
–  9.25.4. Vapour Barriers
–  9.25.5. Properties and Position of Materials in Building
Envelope
–  9.27. Cladding TBD
- March 9, 2016page 51
Rear Ventilated Rain Screen
(Moisture Management)
Drainage and ventilation
Some water gets
in, and then
drains out.
Condensation
and water vapour
vented to
exterior.
Alternatively – Single Skin Construction. Water always
gets in causing deterioration
Crack
Drained cavity Rainscreen eg Masonry
•  Masonry uses Rainscreen term – different
than RVRS
•  Drainage of water that penetrates the
brick is allowed to drain out
•  Limited to no ventilation; closed top and
bottom of wall.
•  Less active plenum; reducing benefit of
ventilation
•  Constructability issues with ensuring
drainage is working
•  Heavier, more steps to build
- March 9, 2016page 54
RVRS (Insulation)
NATURAL INSULATION – 0.5 R Value from RVRS
Energy Efficiency
Consumption of
AC/Heating
Acoustic Insulation
RVRS
(Temperature Regulation)
When the outside temperature is HOT, the ventilated rain
screen cladding has a cooling effect on the building
•  Most of the sun’s rays are reflected
•  Ventilating effect of the air gap
RVRS
(Temperature Regulation)
When the temperature is COLD outside the same process occurs:
•  Most of the cold air is
reflected by the exterior
architectural panel
•  The remaining cool air will
partially dissipate by the ventilating
effect of the air gap between the
architectural panel and the structural wall
•  Insulation is protected, so will remain effective

More Related Content

What's hot

AAC Installation Guidelines
AAC Installation GuidelinesAAC Installation Guidelines
AAC Installation GuidelinesBENAY MUNDA
 
Aerated autoclaved concrete
Aerated autoclaved concreteAerated autoclaved concrete
Aerated autoclaved concreteFrahim Akhtar
 
GFRG Rapidwall Sustainable Load Bearing Building System
GFRG Rapidwall Sustainable Load Bearing Building SystemGFRG Rapidwall Sustainable Load Bearing Building System
GFRG Rapidwall Sustainable Load Bearing Building SystemRajdeep Chowdhury
 
New Building Materials
New Building MaterialsNew Building Materials
New Building MaterialsDr K M SONI
 
FERROCRETE - MATERIAL AND CONSTRUCTION METHODS
FERROCRETE - MATERIAL AND CONSTRUCTION METHODSFERROCRETE - MATERIAL AND CONSTRUCTION METHODS
FERROCRETE - MATERIAL AND CONSTRUCTION METHODSjagrutib22
 
Ferrocement
FerrocementFerrocement
FerrocementRahul Ce
 
Autoclaved Aerated Concrete Blocks
Autoclaved Aerated Concrete BlocksAutoclaved Aerated Concrete Blocks
Autoclaved Aerated Concrete BlocksThaju Zaman
 
Bubble deck&amp;hollow core slab
Bubble deck&amp;hollow core slabBubble deck&amp;hollow core slab
Bubble deck&amp;hollow core slabPenny3688
 
MODERN CONSTRUCTION TECHNOLOGIES IN ENGINEERING PERSPECTIVE
MODERN CONSTRUCTION TECHNOLOGIES IN ENGINEERING PERSPECTIVEMODERN CONSTRUCTION TECHNOLOGIES IN ENGINEERING PERSPECTIVE
MODERN CONSTRUCTION TECHNOLOGIES IN ENGINEERING PERSPECTIVEDr K M SONI
 
Construction technology (process)
Construction technology (process)Construction technology (process)
Construction technology (process)Ain Ridzuan
 
Rooftops and solar arrays 07.08.12
Rooftops and solar arrays 07.08.12Rooftops and solar arrays 07.08.12
Rooftops and solar arrays 07.08.12Tobin Booth
 
Base Structures Tensile Fabric Webinar 3: London 2012 Games Case Study - The ...
Base Structures Tensile Fabric Webinar 3: London 2012 Games Case Study - The ...Base Structures Tensile Fabric Webinar 3: London 2012 Games Case Study - The ...
Base Structures Tensile Fabric Webinar 3: London 2012 Games Case Study - The ...Base Structures Ltd
 

What's hot (20)

Mortarless system
Mortarless systemMortarless system
Mortarless system
 
AAC Installation Guidelines
AAC Installation GuidelinesAAC Installation Guidelines
AAC Installation Guidelines
 
Aerated autoclaved concrete
Aerated autoclaved concreteAerated autoclaved concrete
Aerated autoclaved concrete
 
GFRG Rapidwall Sustainable Load Bearing Building System
GFRG Rapidwall Sustainable Load Bearing Building SystemGFRG Rapidwall Sustainable Load Bearing Building System
GFRG Rapidwall Sustainable Load Bearing Building System
 
New Building Materials
New Building MaterialsNew Building Materials
New Building Materials
 
Seminor report
Seminor reportSeminor report
Seminor report
 
FERROCRETE - MATERIAL AND CONSTRUCTION METHODS
FERROCRETE - MATERIAL AND CONSTRUCTION METHODSFERROCRETE - MATERIAL AND CONSTRUCTION METHODS
FERROCRETE - MATERIAL AND CONSTRUCTION METHODS
 
Ferrouscementhouse 2
Ferrouscementhouse 2Ferrouscementhouse 2
Ferrouscementhouse 2
 
Ferrocement
FerrocementFerrocement
Ferrocement
 
Shotcrete technology
Shotcrete technologyShotcrete technology
Shotcrete technology
 
Buildings
BuildingsBuildings
Buildings
 
Autoclaved Aerated Concrete Blocks
Autoclaved Aerated Concrete BlocksAutoclaved Aerated Concrete Blocks
Autoclaved Aerated Concrete Blocks
 
Bubble deck&amp;hollow core slab
Bubble deck&amp;hollow core slabBubble deck&amp;hollow core slab
Bubble deck&amp;hollow core slab
 
MODERN CONSTRUCTION TECHNOLOGIES IN ENGINEERING PERSPECTIVE
MODERN CONSTRUCTION TECHNOLOGIES IN ENGINEERING PERSPECTIVEMODERN CONSTRUCTION TECHNOLOGIES IN ENGINEERING PERSPECTIVE
MODERN CONSTRUCTION TECHNOLOGIES IN ENGINEERING PERSPECTIVE
 
Construction technology (process)
Construction technology (process)Construction technology (process)
Construction technology (process)
 
Rooftops and solar arrays 07.08.12
Rooftops and solar arrays 07.08.12Rooftops and solar arrays 07.08.12
Rooftops and solar arrays 07.08.12
 
Shotcrete
ShotcreteShotcrete
Shotcrete
 
Base Structures Tensile Fabric Webinar 3: London 2012 Games Case Study - The ...
Base Structures Tensile Fabric Webinar 3: London 2012 Games Case Study - The ...Base Structures Tensile Fabric Webinar 3: London 2012 Games Case Study - The ...
Base Structures Tensile Fabric Webinar 3: London 2012 Games Case Study - The ...
 
Hollow Floor Slab
Hollow Floor SlabHollow Floor Slab
Hollow Floor Slab
 
AAC - do's and don't
AAC - do's and don'tAAC - do's and don't
AAC - do's and don't
 

Similar to Rear Ventilated Rain Screen OBEC Mar 2016

Thermally Broken Facades Webinar
Thermally Broken Facades WebinarThermally Broken Facades Webinar
Thermally Broken Facades WebinarLaura Sheridan
 
autoclaved aerated concrete
autoclaved aerated concreteautoclaved aerated concrete
autoclaved aerated concreteSIVA Aruna
 
Tensile structures for architects
Tensile structures for architectsTensile structures for architects
Tensile structures for architectsDeepak KUMAR
 
Aerocon Panels | Aerocon Blocks | Aadam Enterprises
Aerocon Panels | Aerocon Blocks | Aadam EnterprisesAerocon Panels | Aerocon Blocks | Aadam Enterprises
Aerocon Panels | Aerocon Blocks | Aadam EnterprisesUdayaraj K
 
Hot Melt Roofing Solution to Hiscox's new headquarters by Make Architects #Pe...
Hot Melt Roofing Solution to Hiscox's new headquarters by Make Architects #Pe...Hot Melt Roofing Solution to Hiscox's new headquarters by Make Architects #Pe...
Hot Melt Roofing Solution to Hiscox's new headquarters by Make Architects #Pe...SIG Design and Technology
 
New developments in construction technology
New developments in construction technologyNew developments in construction technology
New developments in construction technologyGAW Consultants
 
Base Ambrico 3 4 08 (Nx Power Lite)
Base Ambrico 3 4 08 (Nx Power Lite)Base Ambrico 3 4 08 (Nx Power Lite)
Base Ambrico 3 4 08 (Nx Power Lite)mty917
 
Composite (GRP) Railway Stations & Solutions
Composite (GRP) Railway Stations & SolutionsComposite (GRP) Railway Stations & Solutions
Composite (GRP) Railway Stations & SolutionsAmbarjeet Shome
 
Precast concrete - drywall
Precast  concrete - drywallPrecast  concrete - drywall
Precast concrete - drywallDenis Patel
 
Affordable Housing company in India WorldHaus Inc.
Affordable Housing company in India WorldHaus Inc.Affordable Housing company in India WorldHaus Inc.
Affordable Housing company in India WorldHaus Inc.WorldHaus
 
Sesión técnica, sala KM 19, Epoxy pipeline technology
Sesión técnica, sala KM 19, Epoxy pipeline technologySesión técnica, sala KM 19, Epoxy pipeline technology
Sesión técnica, sala KM 19, Epoxy pipeline technologyLTDH2013
 
Enviroform Solutions Open Day
Enviroform Solutions Open DayEnviroform Solutions Open Day
Enviroform Solutions Open DayLiam Brown
 
Smart eco hub open day 1
Smart eco hub open day 1Smart eco hub open day 1
Smart eco hub open day 1Conor Annett
 
The Great Leap Theory, Donald Bruce.pdf
The Great Leap Theory, Donald Bruce.pdfThe Great Leap Theory, Donald Bruce.pdf
The Great Leap Theory, Donald Bruce.pdffreezefreeze2
 
Armtec - Introduction to Soil Steel Structures & End Treatments
Armtec - Introduction to Soil Steel Structures & End TreatmentsArmtec - Introduction to Soil Steel Structures & End Treatments
Armtec - Introduction to Soil Steel Structures & End TreatmentsCommunications Branding
 
Ruzoil_Presentation #2pdf
Ruzoil_Presentation #2pdfRuzoil_Presentation #2pdf
Ruzoil_Presentation #2pdfJuan Paredes
 
Plasticon Composites - Non-corosive products for the Power market
Plasticon Composites - Non-corosive products for the Power marketPlasticon Composites - Non-corosive products for the Power market
Plasticon Composites - Non-corosive products for the Power marketGunar Krause
 
Pt slab design philosophy with slides and pictures showing benefit
Pt slab design philosophy  with slides and pictures showing benefitPt slab design philosophy  with slides and pictures showing benefit
Pt slab design philosophy with slides and pictures showing benefitPerwez Ahmad
 

Similar to Rear Ventilated Rain Screen OBEC Mar 2016 (20)

Thermally Broken Facades Webinar
Thermally Broken Facades WebinarThermally Broken Facades Webinar
Thermally Broken Facades Webinar
 
autoclaved aerated concrete
autoclaved aerated concreteautoclaved aerated concrete
autoclaved aerated concrete
 
Tensile structures for architects
Tensile structures for architectsTensile structures for architects
Tensile structures for architects
 
Aerocon Panels | Aerocon Blocks | Aadam Enterprises
Aerocon Panels | Aerocon Blocks | Aadam EnterprisesAerocon Panels | Aerocon Blocks | Aadam Enterprises
Aerocon Panels | Aerocon Blocks | Aadam Enterprises
 
Hot Melt Roofing Solution to Hiscox's new headquarters by Make Architects #Pe...
Hot Melt Roofing Solution to Hiscox's new headquarters by Make Architects #Pe...Hot Melt Roofing Solution to Hiscox's new headquarters by Make Architects #Pe...
Hot Melt Roofing Solution to Hiscox's new headquarters by Make Architects #Pe...
 
New developments in construction technology
New developments in construction technologyNew developments in construction technology
New developments in construction technology
 
Presentation FFFT
Presentation FFFTPresentation FFFT
Presentation FFFT
 
Base Ambrico 3 4 08 (Nx Power Lite)
Base Ambrico 3 4 08 (Nx Power Lite)Base Ambrico 3 4 08 (Nx Power Lite)
Base Ambrico 3 4 08 (Nx Power Lite)
 
Composite (GRP) Railway Stations & Solutions
Composite (GRP) Railway Stations & SolutionsComposite (GRP) Railway Stations & Solutions
Composite (GRP) Railway Stations & Solutions
 
Precast concrete - drywall
Precast  concrete - drywallPrecast  concrete - drywall
Precast concrete - drywall
 
Affordable Housing company in India WorldHaus Inc.
Affordable Housing company in India WorldHaus Inc.Affordable Housing company in India WorldHaus Inc.
Affordable Housing company in India WorldHaus Inc.
 
Sesión técnica, sala KM 19, Epoxy pipeline technology
Sesión técnica, sala KM 19, Epoxy pipeline technologySesión técnica, sala KM 19, Epoxy pipeline technology
Sesión técnica, sala KM 19, Epoxy pipeline technology
 
Enviroform Solutions Open Day
Enviroform Solutions Open DayEnviroform Solutions Open Day
Enviroform Solutions Open Day
 
Smart eco hub open day 1
Smart eco hub open day 1Smart eco hub open day 1
Smart eco hub open day 1
 
CONFORTO
CONFORTOCONFORTO
CONFORTO
 
The Great Leap Theory, Donald Bruce.pdf
The Great Leap Theory, Donald Bruce.pdfThe Great Leap Theory, Donald Bruce.pdf
The Great Leap Theory, Donald Bruce.pdf
 
Armtec - Introduction to Soil Steel Structures & End Treatments
Armtec - Introduction to Soil Steel Structures & End TreatmentsArmtec - Introduction to Soil Steel Structures & End Treatments
Armtec - Introduction to Soil Steel Structures & End Treatments
 
Ruzoil_Presentation #2pdf
Ruzoil_Presentation #2pdfRuzoil_Presentation #2pdf
Ruzoil_Presentation #2pdf
 
Plasticon Composites - Non-corosive products for the Power market
Plasticon Composites - Non-corosive products for the Power marketPlasticon Composites - Non-corosive products for the Power market
Plasticon Composites - Non-corosive products for the Power market
 
Pt slab design philosophy with slides and pictures showing benefit
Pt slab design philosophy  with slides and pictures showing benefitPt slab design philosophy  with slides and pictures showing benefit
Pt slab design philosophy with slides and pictures showing benefit
 

More from Blair Davies, P.Eng., M.B.A.

Website presentation from Vector Minima Inc and World of Modular full
Website presentation from Vector Minima Inc and World of Modular fullWebsite presentation from Vector Minima Inc and World of Modular full
Website presentation from Vector Minima Inc and World of Modular fullBlair Davies, P.Eng., M.B.A.
 
Fsi picco engineering stone and structural solutions v1
Fsi picco engineering stone and structural solutions v1Fsi picco engineering stone and structural solutions v1
Fsi picco engineering stone and structural solutions v1Blair Davies, P.Eng., M.B.A.
 

More from Blair Davies, P.Eng., M.B.A. (20)

Spec u kon fsi 2021
Spec u kon fsi 2021Spec u kon fsi 2021
Spec u kon fsi 2021
 
Corium q&amp;a 2020
Corium q&amp;a 2020Corium q&amp;a 2020
Corium q&amp;a 2020
 
Dekton fsi facades
Dekton fsi facadesDekton fsi facades
Dekton fsi facades
 
Rule307dpetition 201124135418
Rule307dpetition 201124135418Rule307dpetition 201124135418
Rule307dpetition 201124135418
 
Tro order
Tro orderTro order
Tro order
 
U-Kon Systems FR ENG Catalog
U-Kon Systems FR ENG CatalogU-Kon Systems FR ENG Catalog
U-Kon Systems FR ENG Catalog
 
Ceraclad product brochure ver14-dl...
Ceraclad product brochure ver14-dl...Ceraclad product brochure ver14-dl...
Ceraclad product brochure ver14-dl...
 
Ceraclad product catalog
Ceraclad product catalogCeraclad product catalog
Ceraclad product catalog
 
Facade Systems Inc Lunch and Learn Fundermax
Facade Systems Inc Lunch and Learn FundermaxFacade Systems Inc Lunch and Learn Fundermax
Facade Systems Inc Lunch and Learn Fundermax
 
Website presentation from Vector Minima Inc and World of Modular full
Website presentation from Vector Minima Inc and World of Modular fullWebsite presentation from Vector Minima Inc and World of Modular full
Website presentation from Vector Minima Inc and World of Modular full
 
Ceraclad brochure ver.13
Ceraclad brochure ver.13Ceraclad brochure ver.13
Ceraclad brochure ver.13
 
FunderMax for people who create Jan 2020
FunderMax for people who create Jan 2020FunderMax for people who create Jan 2020
FunderMax for people who create Jan 2020
 
A different way - career design for youth
A different way - career design for youthA different way - career design for youth
A different way - career design for youth
 
Sunshades and screens from many products 1
Sunshades and screens from many products 1Sunshades and screens from many products 1
Sunshades and screens from many products 1
 
Fsi handout v1 2019
Fsi handout v1 2019Fsi handout v1 2019
Fsi handout v1 2019
 
Terra Cotta Baguettes from Facade Systems Inc
Terra Cotta Baguettes from Facade Systems IncTerra Cotta Baguettes from Facade Systems Inc
Terra Cotta Baguettes from Facade Systems Inc
 
FunderMax sunshades and screens 1
FunderMax sunshades and screens 1FunderMax sunshades and screens 1
FunderMax sunshades and screens 1
 
Fsi picco engineering stone and structural solutions v1
Fsi picco engineering stone and structural solutions v1Fsi picco engineering stone and structural solutions v1
Fsi picco engineering stone and structural solutions v1
 
Fsi FunderMax Compact vs precast 1
Fsi FunderMax Compact vs precast 1Fsi FunderMax Compact vs precast 1
Fsi FunderMax Compact vs precast 1
 
Fsi argeton brochure_v1
Fsi argeton brochure_v1Fsi argeton brochure_v1
Fsi argeton brochure_v1
 

Recently uploaded

'CASE STUDY OF INDIRA PARYAVARAN BHAVAN DELHI ,
'CASE STUDY OF INDIRA PARYAVARAN BHAVAN DELHI ,'CASE STUDY OF INDIRA PARYAVARAN BHAVAN DELHI ,
'CASE STUDY OF INDIRA PARYAVARAN BHAVAN DELHI ,Aginakm1
 
办理(宾州州立毕业证书)美国宾夕法尼亚州立大学毕业证成绩单原版一比一
办理(宾州州立毕业证书)美国宾夕法尼亚州立大学毕业证成绩单原版一比一办理(宾州州立毕业证书)美国宾夕法尼亚州立大学毕业证成绩单原版一比一
办理(宾州州立毕业证书)美国宾夕法尼亚州立大学毕业证成绩单原版一比一F La
 
定制(CQU文凭证书)中央昆士兰大学毕业证成绩单原版一比一
定制(CQU文凭证书)中央昆士兰大学毕业证成绩单原版一比一定制(CQU文凭证书)中央昆士兰大学毕业证成绩单原版一比一
定制(CQU文凭证书)中央昆士兰大学毕业证成绩单原版一比一Fi ss
 
Iconic Global Solution - web design, Digital Marketing services
Iconic Global Solution - web design, Digital Marketing servicesIconic Global Solution - web design, Digital Marketing services
Iconic Global Solution - web design, Digital Marketing servicesIconic global solution
 
办理学位证加州州立大学洛杉矶分校毕业证成绩单原版一比一
办理学位证加州州立大学洛杉矶分校毕业证成绩单原版一比一办理学位证加州州立大学洛杉矶分校毕业证成绩单原版一比一
办理学位证加州州立大学洛杉矶分校毕业证成绩单原版一比一Fi L
 
PORTFOLIO DE ARQUITECTURA CRISTOBAL HERAUD 2024
PORTFOLIO DE ARQUITECTURA CRISTOBAL HERAUD 2024PORTFOLIO DE ARQUITECTURA CRISTOBAL HERAUD 2024
PORTFOLIO DE ARQUITECTURA CRISTOBAL HERAUD 2024CristobalHeraud
 
办理(USYD毕业证书)澳洲悉尼大学毕业证成绩单原版一比一
办理(USYD毕业证书)澳洲悉尼大学毕业证成绩单原版一比一办理(USYD毕业证书)澳洲悉尼大学毕业证成绩单原版一比一
办理(USYD毕业证书)澳洲悉尼大学毕业证成绩单原版一比一diploma 1
 
办理(UC毕业证书)查尔斯顿大学毕业证成绩单原版一比一
办理(UC毕业证书)查尔斯顿大学毕业证成绩单原版一比一办理(UC毕业证书)查尔斯顿大学毕业证成绩单原版一比一
办理(UC毕业证书)查尔斯顿大学毕业证成绩单原版一比一z xss
 
FiveHypotheses_UIDMasterclass_18April2024.pdf
FiveHypotheses_UIDMasterclass_18April2024.pdfFiveHypotheses_UIDMasterclass_18April2024.pdf
FiveHypotheses_UIDMasterclass_18April2024.pdfShivakumar Viswanathan
 
(办理学位证)埃迪斯科文大学毕业证成绩单原版一比一
(办理学位证)埃迪斯科文大学毕业证成绩单原版一比一(办理学位证)埃迪斯科文大学毕业证成绩单原版一比一
(办理学位证)埃迪斯科文大学毕业证成绩单原版一比一Fi sss
 
毕业文凭制作#回国入职#diploma#degree澳洲弗林德斯大学毕业证成绩单pdf电子版制作修改#毕业文凭制作#回国入职#diploma#degree
毕业文凭制作#回国入职#diploma#degree澳洲弗林德斯大学毕业证成绩单pdf电子版制作修改#毕业文凭制作#回国入职#diploma#degree 毕业文凭制作#回国入职#diploma#degree澳洲弗林德斯大学毕业证成绩单pdf电子版制作修改#毕业文凭制作#回国入职#diploma#degree
毕业文凭制作#回国入职#diploma#degree澳洲弗林德斯大学毕业证成绩单pdf电子版制作修改#毕业文凭制作#回国入职#diploma#degree ttt fff
 
原版1:1定制堪培拉大学毕业证(UC毕业证)#文凭成绩单#真实留信学历认证永久存档
原版1:1定制堪培拉大学毕业证(UC毕业证)#文凭成绩单#真实留信学历认证永久存档原版1:1定制堪培拉大学毕业证(UC毕业证)#文凭成绩单#真实留信学历认证永久存档
原版1:1定制堪培拉大学毕业证(UC毕业证)#文凭成绩单#真实留信学历认证永久存档208367051
 
DAKSHIN BIHAR GRAMIN BANK: REDEFINING THE DIGITAL BANKING EXPERIENCE WITH A U...
DAKSHIN BIHAR GRAMIN BANK: REDEFINING THE DIGITAL BANKING EXPERIENCE WITH A U...DAKSHIN BIHAR GRAMIN BANK: REDEFINING THE DIGITAL BANKING EXPERIENCE WITH A U...
DAKSHIN BIHAR GRAMIN BANK: REDEFINING THE DIGITAL BANKING EXPERIENCE WITH A U...Rishabh Aryan
 
办理学位证(TheAuckland证书)新西兰奥克兰大学毕业证成绩单原版一比一
办理学位证(TheAuckland证书)新西兰奥克兰大学毕业证成绩单原版一比一办理学位证(TheAuckland证书)新西兰奥克兰大学毕业证成绩单原版一比一
办理学位证(TheAuckland证书)新西兰奥克兰大学毕业证成绩单原版一比一Fi L
 
ARt app | UX Case Study
ARt app | UX Case StudyARt app | UX Case Study
ARt app | UX Case StudySophia Viganò
 
Call Girls in Ashok Nagar Delhi ✡️9711147426✡️ Escorts Service
Call Girls in Ashok Nagar Delhi ✡️9711147426✡️ Escorts ServiceCall Girls in Ashok Nagar Delhi ✡️9711147426✡️ Escorts Service
Call Girls in Ashok Nagar Delhi ✡️9711147426✡️ Escorts Servicejennyeacort
 
Design and Managing Service in the field of tourism and hospitality industry
Design and Managing Service in the field of tourism and hospitality industryDesign and Managing Service in the field of tourism and hospitality industry
Design and Managing Service in the field of tourism and hospitality industryrioverosanniejoy
 
Top 10 Modern Web Design Trends for 2025
Top 10 Modern Web Design Trends for 2025Top 10 Modern Web Design Trends for 2025
Top 10 Modern Web Design Trends for 2025Rndexperts
 
Design principles on typography in design
Design principles on typography in designDesign principles on typography in design
Design principles on typography in designnooreen17
 

Recently uploaded (20)

'CASE STUDY OF INDIRA PARYAVARAN BHAVAN DELHI ,
'CASE STUDY OF INDIRA PARYAVARAN BHAVAN DELHI ,'CASE STUDY OF INDIRA PARYAVARAN BHAVAN DELHI ,
'CASE STUDY OF INDIRA PARYAVARAN BHAVAN DELHI ,
 
办理(宾州州立毕业证书)美国宾夕法尼亚州立大学毕业证成绩单原版一比一
办理(宾州州立毕业证书)美国宾夕法尼亚州立大学毕业证成绩单原版一比一办理(宾州州立毕业证书)美国宾夕法尼亚州立大学毕业证成绩单原版一比一
办理(宾州州立毕业证书)美国宾夕法尼亚州立大学毕业证成绩单原版一比一
 
定制(CQU文凭证书)中央昆士兰大学毕业证成绩单原版一比一
定制(CQU文凭证书)中央昆士兰大学毕业证成绩单原版一比一定制(CQU文凭证书)中央昆士兰大学毕业证成绩单原版一比一
定制(CQU文凭证书)中央昆士兰大学毕业证成绩单原版一比一
 
Iconic Global Solution - web design, Digital Marketing services
Iconic Global Solution - web design, Digital Marketing servicesIconic Global Solution - web design, Digital Marketing services
Iconic Global Solution - web design, Digital Marketing services
 
Call Girls in Pratap Nagar, 9953056974 Escort Service
Call Girls in Pratap Nagar,  9953056974 Escort ServiceCall Girls in Pratap Nagar,  9953056974 Escort Service
Call Girls in Pratap Nagar, 9953056974 Escort Service
 
办理学位证加州州立大学洛杉矶分校毕业证成绩单原版一比一
办理学位证加州州立大学洛杉矶分校毕业证成绩单原版一比一办理学位证加州州立大学洛杉矶分校毕业证成绩单原版一比一
办理学位证加州州立大学洛杉矶分校毕业证成绩单原版一比一
 
PORTFOLIO DE ARQUITECTURA CRISTOBAL HERAUD 2024
PORTFOLIO DE ARQUITECTURA CRISTOBAL HERAUD 2024PORTFOLIO DE ARQUITECTURA CRISTOBAL HERAUD 2024
PORTFOLIO DE ARQUITECTURA CRISTOBAL HERAUD 2024
 
办理(USYD毕业证书)澳洲悉尼大学毕业证成绩单原版一比一
办理(USYD毕业证书)澳洲悉尼大学毕业证成绩单原版一比一办理(USYD毕业证书)澳洲悉尼大学毕业证成绩单原版一比一
办理(USYD毕业证书)澳洲悉尼大学毕业证成绩单原版一比一
 
办理(UC毕业证书)查尔斯顿大学毕业证成绩单原版一比一
办理(UC毕业证书)查尔斯顿大学毕业证成绩单原版一比一办理(UC毕业证书)查尔斯顿大学毕业证成绩单原版一比一
办理(UC毕业证书)查尔斯顿大学毕业证成绩单原版一比一
 
FiveHypotheses_UIDMasterclass_18April2024.pdf
FiveHypotheses_UIDMasterclass_18April2024.pdfFiveHypotheses_UIDMasterclass_18April2024.pdf
FiveHypotheses_UIDMasterclass_18April2024.pdf
 
(办理学位证)埃迪斯科文大学毕业证成绩单原版一比一
(办理学位证)埃迪斯科文大学毕业证成绩单原版一比一(办理学位证)埃迪斯科文大学毕业证成绩单原版一比一
(办理学位证)埃迪斯科文大学毕业证成绩单原版一比一
 
毕业文凭制作#回国入职#diploma#degree澳洲弗林德斯大学毕业证成绩单pdf电子版制作修改#毕业文凭制作#回国入职#diploma#degree
毕业文凭制作#回国入职#diploma#degree澳洲弗林德斯大学毕业证成绩单pdf电子版制作修改#毕业文凭制作#回国入职#diploma#degree 毕业文凭制作#回国入职#diploma#degree澳洲弗林德斯大学毕业证成绩单pdf电子版制作修改#毕业文凭制作#回国入职#diploma#degree
毕业文凭制作#回国入职#diploma#degree澳洲弗林德斯大学毕业证成绩单pdf电子版制作修改#毕业文凭制作#回国入职#diploma#degree
 
原版1:1定制堪培拉大学毕业证(UC毕业证)#文凭成绩单#真实留信学历认证永久存档
原版1:1定制堪培拉大学毕业证(UC毕业证)#文凭成绩单#真实留信学历认证永久存档原版1:1定制堪培拉大学毕业证(UC毕业证)#文凭成绩单#真实留信学历认证永久存档
原版1:1定制堪培拉大学毕业证(UC毕业证)#文凭成绩单#真实留信学历认证永久存档
 
DAKSHIN BIHAR GRAMIN BANK: REDEFINING THE DIGITAL BANKING EXPERIENCE WITH A U...
DAKSHIN BIHAR GRAMIN BANK: REDEFINING THE DIGITAL BANKING EXPERIENCE WITH A U...DAKSHIN BIHAR GRAMIN BANK: REDEFINING THE DIGITAL BANKING EXPERIENCE WITH A U...
DAKSHIN BIHAR GRAMIN BANK: REDEFINING THE DIGITAL BANKING EXPERIENCE WITH A U...
 
办理学位证(TheAuckland证书)新西兰奥克兰大学毕业证成绩单原版一比一
办理学位证(TheAuckland证书)新西兰奥克兰大学毕业证成绩单原版一比一办理学位证(TheAuckland证书)新西兰奥克兰大学毕业证成绩单原版一比一
办理学位证(TheAuckland证书)新西兰奥克兰大学毕业证成绩单原版一比一
 
ARt app | UX Case Study
ARt app | UX Case StudyARt app | UX Case Study
ARt app | UX Case Study
 
Call Girls in Ashok Nagar Delhi ✡️9711147426✡️ Escorts Service
Call Girls in Ashok Nagar Delhi ✡️9711147426✡️ Escorts ServiceCall Girls in Ashok Nagar Delhi ✡️9711147426✡️ Escorts Service
Call Girls in Ashok Nagar Delhi ✡️9711147426✡️ Escorts Service
 
Design and Managing Service in the field of tourism and hospitality industry
Design and Managing Service in the field of tourism and hospitality industryDesign and Managing Service in the field of tourism and hospitality industry
Design and Managing Service in the field of tourism and hospitality industry
 
Top 10 Modern Web Design Trends for 2025
Top 10 Modern Web Design Trends for 2025Top 10 Modern Web Design Trends for 2025
Top 10 Modern Web Design Trends for 2025
 
Design principles on typography in design
Design principles on typography in designDesign principles on typography in design
Design principles on typography in design
 

Rear Ventilated Rain Screen OBEC Mar 2016

  • 1. Case Studies of RVRS design; Use of Light Weight Panelized Construction in Multiple Projects OBEC March 2016 Blair Davies, P.Eng VP GM Engineered Assemblies - March 9, 2016page 1
  • 2. Engineered Assemblies “Unite the House of Design with The Field of Construction” –  Thermally Broken RVRS Facades –  Daylighting –  High performance Metal Roofs Partners »  Etex - Imetco »  Composites Gurea - SRP Canada »  Formica - AWF »  Gentas - CPI Daylighting >1000 projects; no warranty claims, no non payment for non performance Sister company Praxy installation Ontario - March 9, 2016page 2
  • 3. Speaker Blair Davies, P.Eng –  BaSc University of Waterloo – Civil Engineering –  MBA Schulich School of Business –  Building envelope business since 2008 –  Buildings across Canada - March 9, 2016page 3
  • 4. Agenda •  Introduction – does all this matter? •  What matters •  Definition and history –  DIN 18516 –  British Standards •  Pressure Equalization – the debate •  Case Study #1 –  Parliament St Data Centre – ceramic •  Case Study #2 –  McLean Park Towers – fibre cement •  Case Study #3 –  88 Sheppard, Minto – fibre cement •  Case Study #4 –  2 Virtue Street – fibre cement recladding •  Case Study # 5 –  Addington Residence – ceramic recladding •  Unanswered questions •  Conclusion •  Ontario Building Code •  Discussion - March 9, 2016page 4
  • 5. Is all this necessary? - March 9, 2016page 5
  • 6. What matters •  Ventilation •  Drainage •  Thermal Bridging •  Secure •  Impact •  Weight •  Durable •  Constructible •  Climate and weather •  Acoustics - March 9, 2016page 6
  • 7. Light weight matter? •  Fibre cement 15 kg/m2 •  Ceramic 35 – 50 kg/m2 •  Metal 4.5-7.3 kg/m2 •  Steel stud wall; insulation; thermally broken substructure 20kg/m2 (GUESS) •  Brick 174 kg/m2 •  Precast(300mm) 718 kg/m2 •  EIFS (100mm) 8 kg/m2 •  Curtain wall 49 kg/m2 - March 9, 2016page 7
  • 8. Define RVRS •  Cladding stands off the moisture resistant surface to create a drainage plane and ventilation cavity. •  Vertical cavity for stack effect and capillary break. •  The wall open top and bottom to allow ventilation, •  Intermediate gaps open or closed; aesthetic decision. •  Insulated or non-insulated. - March 9, 2016page 8 Source: Wikipedia
  • 9. - March 9, 2016page 9 •  Framing – stud, concrete, brick, etc •  Sheathing, AVB •  Insulation •  Weather barrier •  Cavity •  Panels •  Thermally Broken substructure
  • 10. - March 9, 2016page 10 Detail in practice
  • 11. 11 Key Attributes of RVRS Facades? •  Remove water and vapour in active, natural manner from assembly •  Exterior takes abuse of the weather - full heat, the sun, the wind… •  Ventilation helps the building AND the façade product •  Accommodates any amount of insulation •  Insulation is always drying - better effective R •  Simpler, more easily built and inspected - no caulking •  Lighter thinner systems than concrete and brick •  Unlimited choice in panel selection. •  Better energy efficiency than most curtain wall •  Less expensive than many other systems
  • 12. History and Standards •  Ventilated façade in Europe –  DIN 18516 – German Construction Standard •  Specifies all key attributes •  Spacing behind panel minimum 20mm –  CWCT H92 –  NBS British Construction Standard •  Canadian Construction Technology Update –  1963 NRC –  1999 CTU –  Cladding leakage area to Ventilation area suggested 10:1 •  USA NIBS - March 9, 2016page 12
  • 13. DIN 18516 •  Covers –  Scope and field of application –  Concepts –  Requirements –  Design loads, thermal effects and structural movements –  Structural analysis –  Protection of materials –  Testing of connectors, fixing and ties –  Documentation –  Inspection - March 9, 2016page 13
  • 14. NBS Section H92 •  Vertical building envelope; Outer skin •  Airtight insulated backing wall, separate by ventilated cavity •  Key distinction is that curtain walling is usually the whole envelope, while rainscreen cladding is the outer protective layer of the envelope. - March 9, 2016page 14
  • 15. Business Opportunity •  Materials developed to leverage RVRS mostly from Europe –  High density fibre cement –  Glass reinforced concrete –  Phenolic –  Ceramic –  Porcelain –  Metals –  Stone laminates –  Wood panels –  Hybrids •  Subsystems •  Design •  Labour - March 9, 2016page 15
  • 16. RVRS suitable for all building types HouseCondo HotelUniversity SchoolHospital
  • 18. Walter Gropius, gropiusstadt, Berlin, b1960-1975 Eternit panels in high rise ventilated facade application
  • 19. Pressure Equalization •  Ideal •  Ambiguous •  Planning ≠ Actual •  Structural considerations •  Not part of European standards - March 9, 2016page 19 Sources include: National Building Service UK 1-Jan-2010 “Rainscreen cladding; letting air in to keep rain out”
  • 20. P.E. - compartmentalization •  Horizontal closures so air can get in, but can’t get out •  Seeing specifications with compartmentalization •  Some study that at façade corners and parapets this helps PE.* •  Europeans products do not recognize this practice - March 9, 2016page 20 Source: MCA Whitepaper 11/2014 v2 NRC CTU no 17 1998 Graphic by Nichiha
  • 21. Rain Screen Membrane •  Water resistant, water vapour permeable membrane •  Secondary drainage plane •  Aesthetic black reveal with long term UV resistance for open joint systems •  Can be the deemed air barrier if sealed •  Installed directly behind cladding - March 9, 2016page 21
  • 22. Weather Membrane § For Closed Joint Systems (with no long term UV) •  High WVT 150 perms •  120 g/m2 •  Drainage Plane •  CCMC listed •  Air Barrier Courtesy
  • 23. Drying Rate MVTR (perms)Comparison 0 20 40 60 80 100 120 140 160 Prod 1 Prod 2 Prod 3 Prod 4 Perms Perms Courtesy
  • 24.
  • 25. Weather membrane UV § For Open Joint Wall Systems (long term UV) •  Long Term UV Resistance l  DIN EN 13859 (5,000 hours exposure <5% loss) •  Drainage Plane •  Air Barrier courtesy
  • 26. 26
  • 27. 27 Installation Ø  Attachment l Over insulation, behind cladding l Clips or system support, screws with plates Ø  Overlapping l Shingle style with 6 inch overlap Ø  Seams l Tape vertical seams and details l Tape all seams in Air Barrier installations
  • 28. •  Robust •  Breathable •  Water Resistant •  UV Resistant Why Weather Membrane?
  • 30. All conditions have been done - March 9, 2016page 30
  • 31. Case Study 1 Data Centre •  Parliament St Data Centre •  Cladding, cavity, WB, Insulation, Thermally broken substructure, AVB, framing. •  Effective R Value Goal 21 •  Extruded Ceramic (35kg/m2) + Ceramic Baguettes •  Cavity dimension = 40mm vertical + 63mm. •  Insulation type = Roxul Cavity Rock 4” (100mm) •  WB type = SRP Airoutshield •  AVB type = Soprema •  Special conditions: designed for disaster conditions, so extreme slab deflections expected •  Why: “Relate local masonry in modern way to reflect use of building” WZMH •  Architect WZMH, GC Urbacon, Installer Flynn Canada - March 9, 2016page 31
  • 32. - March 9, 2016page 32
  • 33. - March 9, 2016page 33
  • 34. - March 9, 2016page 34
  • 35. Case Study 2 - McLean Park Towers – Tower Renewal •  Social housing, Vancouver •  High Density Fibre Cement, vertical girts, WB, thermally broken substructure, AVB, Concrete •  HDFC 14.9 kg/m2 faced fastened with colour matched rivets •  25mm cavity with vertical galvanized steel girts •  Roxul Cavity Rock 4” (100mm) •  Thermally broken facade •  Vaproshield WB •  Soprema AVB •  Special conditions: •  JRS Engineering; Installer Marine Cladding - March 9, 2016page 35
  • 36. - March 9, 2016page 36
  • 37. Case Study 3 88 Sheppard E, Minto •  HDFC, Vertical girts, cavity, WB, insulation and girts, AVB, Framing or Concrete •  Effective R value not a goal •  HDFC 14.9 kg/m2 adhered with Dynamic Bond Adhesive •  Cavity dimension 25mm •  Roxul semi-rigid rockboard 40 2” and 3” •  Roxul curtain rock 5”SRP AirOutShield UV •  AVB type TBD •  Rafael + Bigauskas Architects; GC and Owner Minto; Installer Praxy Cladding - March 9, 2016page 37
  • 38. - March 9, 2016page 38 Details – need direction
  • 39. - March 9, 2016page 39
  • 40. - March 9, 2016page 40 AVB WB
  • 41. Case Study 4 •  2 Virtue Street •  HDFC, girts, cavity, breather membrane over brick •  Un-insulated •  HDFC 14.9 kg/m2 •  Cavity dimension 25mm •  SRP AOS UV •  AVB poly inside studs - March 9, 2016page 41
  • 42. - March 9, 2016page 42 Renovation adds new vigour to a sagging Toronto home Aug 2013
  • 43. Case Study 5 Addington Residence U Guelph •  Ceramic panels, system rails, weather membrane, horizontal girts, sprayfoam insulation on top of brick façade •  Ceramic 35 kg/m2 •  Cavity dimension 20mm •  Spray foam 4” (100mm) •  SRP AOS non UV WB •  Blueskin SA behind girts, Spray foam is AVB •  Unique: Brick fastened back to block, and cavity filled. Insulated rainscreen fastened to brick façade - March 9, 2016page 43 Larkin Architects; GC Harbridge and Cross; Installer AMNA
  • 44. - March 9, 2016page 44
  • 45. What would it take to make a real case study – anyone? •  Instrumentation •  Long term study of RH in insulation •  Measurement during weather incident - March 9, 2016page 45
  • 46. Construction Best Practices •  5 things need to be done right to have RVRS success with panelized products eg high density fibre cement. 1.  Ventilation top and bottom. 2.  Vertical substructure for ventilation. 3.  Panels allowed to move for thermal and for building movement, typically with fixed and floating points. 4.  Substructure spacing set by live and dead loads. 5.  Reasonably true wall or adjustable substructure - March 9, 2016page 46
  • 47. Unanswered questions •  What happens to wet insulation over long term? •  Why isn’t metal panel / ACP installed as RVRS? •  Why does OBC not cover topic completely? •  Why are product choices in Canada limited? - March 9, 2016page 47
  • 48. Conclusion •  RVRS Façade a significant design choice for aesthetic and envelope performance reasons •  Engineered extensively, mostly in Europe •  Business opportunity for Canadians •  A few things need to be done right, but reasonable for most cladding trade companies to learn •  Thankyou. - March 9, 2016page 48
  • 49. OBC Review •  Part 4 Structural –  All systems can be designed for all Canadian loads by changing spacing, gauge and material of substructure. –  Seismic testing available for heavier facades eg ceramic. No call yet for testing of phenolics, fibre cement, metal panel –  Panels themselves designed to pass live loads back to substructure, not provide any structural role to the building. •  Part 5 –  5.1.4.2 Resistance to Deterioration –  CSA S478 Durability of Buildings –  5.2.2.1 Determination of Structural loads – comply –  5.3.1 Thermal resistance – not the panels, just the insulation layer. Expectation is cavity has higher or lower temp than outside, improving energy usage – needs proving. •  Important to design due point in right place between AVB and Weather membrane •  Penetration detailing essential – thermal bridging and air transfer to be eliminated –  5.4.1 Air Barrier – at least two layers of protection, insulation may offer another or replace a barrier. - March 9, 2016page 49
  • 50. OBC •  5.4.1.2 Air Barriers CAN/ULCS741 •  5.5.1.1 (1) assemblies shall be such that they control vapour diffusion or permit venting to the exterior so as to minimize accumulation of condensation in the building component or assembly. •  5.6.1 Protection from Precipitation –  Except as provided in Sentence (2), where a building component or assembly is exposed to precipitation, the component or assembly shall, •  (a) minimize ingress of precipitation into the component or assembly, and •  (b) prevent ingress of precipitation into interior space. –  (2) Protection from ingress of precipitation is not required where it can be shown that such ingress will not adversely affect any of …. •  5.6.2 Sealing and drainage – reads like sealing is good. May have misguided intentions. - March 9, 2016page 50
  • 51. OBC •  Part 9 is different –  9.20.13. Control of Rain Water Penetration –  9.25.3. Air Barrier Systems –  9.25.4. Vapour Barriers –  9.25.5. Properties and Position of Materials in Building Envelope –  9.27. Cladding TBD - March 9, 2016page 51
  • 52. Rear Ventilated Rain Screen (Moisture Management) Drainage and ventilation Some water gets in, and then drains out. Condensation and water vapour vented to exterior.
  • 53. Alternatively – Single Skin Construction. Water always gets in causing deterioration Crack
  • 54. Drained cavity Rainscreen eg Masonry •  Masonry uses Rainscreen term – different than RVRS •  Drainage of water that penetrates the brick is allowed to drain out •  Limited to no ventilation; closed top and bottom of wall. •  Less active plenum; reducing benefit of ventilation •  Constructability issues with ensuring drainage is working •  Heavier, more steps to build - March 9, 2016page 54
  • 55. RVRS (Insulation) NATURAL INSULATION – 0.5 R Value from RVRS Energy Efficiency Consumption of AC/Heating Acoustic Insulation
  • 56. RVRS (Temperature Regulation) When the outside temperature is HOT, the ventilated rain screen cladding has a cooling effect on the building •  Most of the sun’s rays are reflected •  Ventilating effect of the air gap
  • 57. RVRS (Temperature Regulation) When the temperature is COLD outside the same process occurs: •  Most of the cold air is reflected by the exterior architectural panel •  The remaining cool air will partially dissipate by the ventilating effect of the air gap between the architectural panel and the structural wall •  Insulation is protected, so will remain effective