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Session_3.0002120002320129948487737727pdf
1. MASS ENGINEERED TIMBER
& HYBRID SOLUTIONS FOR ASIA
2nd MTC International Conference on Wood Architecture, 9
November 2017
Presented By Kevin Hill
MD Venturer Pte Ltd
2. MASS ENGINEERED TIMBER & HYBRID SOLUTIONS FOR ASIA
Discussion on the history of Engineered Wood and current trends
Recap on the fundamentals of Mass Engineered Timber
Productivity as the driver, the Singapore approach
Costs of building with MET in Asia, how to approach viability in regional schemes
Local projects, JTC launchpad, Gul street office, CDL academy, Singapore
Technical Attributes
MET with Steel
Resort and Hospitality Projects
Regulatory and Process requirements
Green and Well being
4. 150 years of wood technology progress...
The Old Malthouse Nottingham, UK 1877, Pine and animal glue, 14m span, 145 x 405 mm
1956, “Pelota Arena” on Riviera Beach, Florida, 73m span, 504 x 1168mm SYP with casein adhesive
Before modern
standards, testing
and certification.
Still standing!
5. 2016, World’s First
Wooden Stadium,
Zaha Hadid Architects
wins competition for
Forest Green Rovers,
Stroud England.
Next year Singapore
will embark on a 40k
m2 campus building
and a 20k m2 Eco
Hotel, built
predominantly with
MET
7. Sakyamuni Pagoda - Yingxian province -
China
Circa 1056, 67.5 m high ( 56 m excl. spire)
Heavy timber with Mortice & Tennon
14 Storey Tower - Bergen - Norway
Completed 2015, 49 m high
Hybrid Engineered Wood Structure, Volumetric Built
10. EUROPEAN SPRUCE
NEW ZEALAND, RADIATA PINE
NORTH AMERICA
SPF
No softwood resources … No matter
NB, By value wood component typically 30 percent of total installed MET cost
MET displacing traditional RC or Steel typically 20% of the total building cost.
11. Time to rethink timber ….. engineered, process modified, and surface treated wood …
high performance and cost effective
Holland Road GCB, Patina Plus Surface treated Thermowood
Nordic Pine
12. ● Long and efficient members
● Average 1.5 times strength to weight than Steel
● Replaces concrete and steel
● Posts and beams
● Curves and trusses
Mass Engineered Timber
CLT Glulam
● Very large format panels
● Replaces concrete walls and floors
● Visual and non-visual gade
● High degree of factory fabrication
13. MET and the Singapore Agenda
✓ Boast transformative sustainability in
Singapore (80% “green” buildings by 2030)
✓ Require 50% fewer men on site
✓ Minimum 50% faster installation
✓ Autonomously produced off site from BIM (3D)
by DFMA
✓ Directly supports Government Policy and first
projects are generating real data.
14. MET, Design and Build
Design, Supply and Install Efficient Hybrid
Structures on time and budget at any scale by
maintaining positive partnerships and high
absorptive capacity
VISION
Struc & Fire
15. KLH Austria, CLT Manufacturing Partner
Venturer are KLH’s first Representative in Asia
covering the Singapore market.
KLH Invented CLT and are the Market leader in CLT
Worldwide.
KLH produce over 2500 Containers of CLT pa.
See http://www.klh.at/en/ for more information.
16. Sometimes only timber is appropriate...
1995
Singapore Botanic
Gardens
This is how we
used to build.
400 m2
10 skilled men for
8 weeks
0.8 M2 /MDay
18. MET in Asia generally comes at a premium over RC frame
Examples of mid rise (3 to 6 stories) commercial building approximate MET frame cost, including:
● Columns, beams and clt diaphragm or CLT cross wall construction
● Excludes architectural finishes, and Rc base.
● assuming average 4 x 8m grid
● 1 hr fire under EC5 charring method.
Construction Cost; 2.5 to 5 kn live load USD $ 350 to 550 usd m2
Example of 5 star resort accommodation
● CLT walls, glulam roof with sheathing or CLT roof slabs
Single or double storey villa USD $ 350 to 500 m2
19. Simple attributes that make MET compelling.
● Value for Lightness ….
● Value for Exposing ….
● Value for Speed ….
● Value for Gracious ….
● Value for Green ….
● Value for Quality….
The above negates benefit from grants or other incentives, does your scheme make financialsense?
What value can be assigned to reducing supporting structure, reduced foundation, or increase
GFA, ie vertical extensions.
Interiors are commonly exposed what value can be saved by reducing finishes, how does an
exposed timber look add value to the space.
What value can be assigned to faster construction, MET is 4 times faster than RC.
MET uses small cranage, very low noise and low disruption on site, can a value be assigned to
this, ie A&A work.
MET is the only commercial Carbon Negative structural building material, can value be assigned
to this?
Precise tolerance prefabrication lends itself to an impression of High Quality
20. Labour costs is SE Asia are different than Europe and America
What is the right level of prefab in your in any given country?
Melbourne, Forte = 5.4 M2 / manday
Munich, typically + 6 m2 / manday
Singapore and neighbouring countries, 4 m2 / manday?
Traditional RC is at 1.2 m2 /manday
What is the optimum mix of components and manpower for a given project?
21. Value for Lightness
2015, Joo Chiat Mid Rise
Proposal.
MET on average 0.3 M3
per GFA, Same as RC
except 30% of the weight.
Prefabricated Floor and Wall
Cassettes
22. Typical Singapore MET Typologies
COMMERCIAL < 5KN ( UNLESS HYBRID )
LIGHT INDUSTRIAL < 5KN
HYBRID COMMERCIAL HIGH RISE
CLUB HOUSES & RECREATIONAL
INSTITUTIONAL
DEFENSE MID RISE
RESIDENTIAL (SERVICE APARTMENT)
GLU LAMINATED ROOFS
PARKS & RECREATION
MASSIVE CANOPIES WITH ETFE OR GLASS
ELEMENTS IN SCHEMES
37. Case Study: Gul Street office Singapore
Transport Strategy, MET V RC.
● Goods arrive approx. 1200 m3, in approximately 40 no 40
ft containers.
● Installation approximately 10 weeks, therefore average 1
trip per day.
● Assumes utilisation of timber approx. 0.3 m3 per m2 of
built area, RC is similar.
● If RC, number of cement trucks is
120 no, excluding formwork and steel.
● If RC, the construction is longer ( RC; 1+ m2 / man day,
MET; 3 + m2 / man day )
MET V RC requires less than 30% of deliveries to site in half
the time.
Gfa 4000m2, to be constructed Q1 2018
38. Benefits - Quality
● Designed for Manufacture and assembly DfMA, no cutting on
site, MET components are flat packed
● CE and European technical rated products are designed for a
minimum of 50 years design life that extends to our climate.
( Similar to RC in Singapore )
● High QC, Products subjected to dozens of tests throughout
production and again locally on a batch basis during
installation
● Products typically are finished by CNC machines to
tolerances of appx 2 mm ensuring a tight fit and clean cuts.
● Off the shelf customised hardware and accessories are
tested and CE compliant, supplied by Rothoblaas of Italy.
● Interior surface quality can be specified, no additional
interior cladding is necessary and therefore the result is
factory finish.
● Typically connections are concealed due to fire
performance and make use of 1mm tolerance shear pins for
a clean appearance.
JTC Block 81, preparation of glulam post,
application of CE rated shear pins
39. MET Engineering Principles
MET HYBRID
On Average 1.5 Times
Strength to weight
ratio of steel
RECTANGLES WORK
BEST ie 8 x 4 m Grid
40. FIRE (SCDF Requirements)
Eurocodes allow the reduction of live loads in fire by 50%, hence
the charring layer for the first 1 hr can use the member design
factor of safety using 0.7 mm per minute.
Refer : SCDF Circular dated 10th August 2016, Amendment to
Fire Code Annex A Implications of Fire Safety requirements for
Engineered Timber Construction.
Execution of EN-13501-1 Reaction to fire to confirm Euroclass rating.
EN 1364 - EN 1365 HFA Austria. Testing for load-bearing elements and 60
min compartment test verification for both naked elements and Gypsum
encapsulated.
41. Termite Resistance
We have performed blind, 3rd-party laboratory and field
termite testing on engineered spruce (CLT/Glulam) to EN
118 using an aggressive local termite species Coptotermes
gestroi.
Tested multiple products to determine efficacy against local
termites in local conditions with imported spruce, Picea
abies.
The termites were unable to survive and feed off the
treated spruce.
FRIM Field tests of treated CLT located in termite infested
soil showed active termites on the surface but no trace of
attack after 16 weeks
CONCLUSION: Timbers treated with specific EN 118 tested preservative have enhanced protection against colonization
by locally prevailing subterranean termites
42. Venturer offsite MET
treatment facility Senoko
Licensed Application of
wood preservative
Application of penetrating
sealer to prevent black
spotting
Preservative is not a
controlled substance by
NEA
Check point for RE
43. Local Compliance Testing
- Samples are taken systematically to verify Factory Production Control (FPC) data on CLT/GL & Fixings
- Note Manufacturer FPC data is required to be shared with BCA upon their request, this is proprietary data shared
on a NDA basis
- LOCAL Testing is required to validate FPC data:
○ Bending
○ Shear
○ Pull out of fasteners
○ Sheer on plate connection
○ Delamination
44. General considerations to extend the natural durability of timber:
● Berlin (left) reaches 80% RH on average 4 months a year
Singapore (right) averages 80 % to maximum 85% all year round
● Average rainfall in Berlin is 24 inches, Singapore is 92 inches.
● Service class 2 ( max for CLT ) allows up to 85 % RH however max MC of 20%
● Service class 3 ( available for glulam ) can be permanently over 85%
● In Glulam non toxic topical applications and or impregnation can mitigate rot and decay
● CLT is normally encapsulated so it is all service class 2 but can be topically treated.
Meeting Humidity Concerns
45. Condition: Installed Outdoors, Undercover glass canopy, & Exposed to Atmospheric Moisture and periodic
driving rain.
Venturer read the moisture content August 11th , 2016:
13.0 % / 13.7 % / 11.8% / 12.1% / 14.1%
Avg. MC: 12.9 %
Venturer measured dimension:
522 mm x 140 mm
Avg. Dimensional Change: < 1 %
GL24h/GL28c /Spruce/Service Class: 2
Manufactured Dimension 520 x 140 mm
Manufactured by Hasslacher Norica Timber
Timber arrived February, 2015
NTU Canopy Moisture- Service Class 2
46. Moisture after Many, Many rainshowers.
Site Diligence
14% 17%
Less than
20% so OK
MC taken when components arrive on site and prior to covering up
52. Delivering Performance, Ventilated Facade & Acoustic Solutions
PERFORMANCE
The condensation point (where the
black and blue lines intersect) is far
outside the building envelope, no
condensation will occur inside the
membrane.
MOISTURE
Independent studies show MET spaces can regulate ambient moisture
by absorbing water vapour when relative humidity is high, and then
expelling it into the facade void via the breathable membrane.
SOUND
CLT 100m thick has a STC of 33, acoustic mat and or isolated hangers
can easily increase this to 50
57. Tropical Hotel and Resort Structures
Orchid Pavilion, Shangri La Singapore.
58. St Regis Maldives
"Engineered Timber is a technology in itself,
using it in the design has allowed new
possibilities due to its large span capabilities,
versatility in its wide ranging sizes to create
curved forms or any other organic forms that
meet our design intent".
Cheong Wen Hui
Architect
63. Singapore Regulatory Requirements
What Can Be Built Now?
CLT and Glulam Regulations have been revised twice since acceptance in 2014:
● Unlimited Height for Timber Structures
● Performance based approach to Fire over 12m habitable height
● Lift and Stair Core can be made out of encapsulated CLT
● Healthcare must be less than 12M
● Buildings do not need Sprinklers if fully encapsulated if MET (exposed this is mandatory)
● Timber Roof structure alone does not need Sprinklers ( Chapter 3 of the Fire Code )
● Advanced technology ie RC to Wood (not harmonized with Eurocode Standards) even if substantiated by performance-
based testing are unlikely to be allowed.
● Outer-facade must be non combustible therefore cannot be made of timber
64. Design & engineering submission & procurement time frame.
Design
● Produce Revit Model, Typically 45 to 60 days
● AC checking approx 30 days
● Local QP to Project QP back back submission.
● Authority Submission to approval, typically 30 to 60 days
Procurement
● Product is typically shipped within 30 to 60 days
● Shipping to Singapore then delivery to site is approx 45 days
Total Time frame, from award to product arriving on site is typically 7 to 8 months , or 5 to 6 months if ordered prior approval.
Note; having submission tested connections and member detailing, close manufacturer relationship, pre booking of material on award,
and logical well planned logistics and handling, is critical to keeping schedules on time.
If the Client is looking for value engineering proposals, and architectural interface work, of which there are many options, then early
award or engagement prior to award of the main contract is logical.
65. Traditional or Design & Build Approach ?
IMPORTANT CONSIDERATIONS INCLUDE:
● PRODUCT SPECIFICATIONS & POSSIBLE CONFIGURATIONS ARE DIVERSE
● APPLICATION OF THE TECHNOLOGY IN THE TROPICS IS EARLY WITH FEW PRECEDENTS
● BEST OPTIMISED SOLUTIONS DEPEND ON BUILDER, QP, CONNECTION DESIGNER AND MANUFACTURER EXPERIENCE AND STRENGTHS
● AN APPROVED PRE-TENDER DESIGN SUBMISSION WILL FAVOUR ONE MANUFACTURER OR SPECIALIST
● PRE-TENDER DESIGNED THEN BUILD SPLITS RESPONSIBILITY POTENTIALLY RISKY FOR NEW TECHNOLOGY
● DESIGN AND BUILD HOLDS CONTRACTOR RESPONSIBLE THAT WORKS ARE ‘FIT FOR PURPOSE’
● CHOICE IS: FITNESS FOR PURPOSE ( Contractor design ) V REASONABLE CARE AND SKILL ( Consultant designed )
● LOCAL CONSULTANTS GAIN KNOWLEDGE BY GENERATING GENERIC SCHEMES FOR FEASIBILITY AND COST THEN EVALUATING MARKET GENERATED SOLUTIONS AND
PROVIDING RECOMMENDATIONS
● VENTURER OFFERS ARE COMPREHENSIVE 10 YEAR WARRANTY FOR DESIGN AND INSTALL.
66. Canary Wharf Crossrail
PRODUCT VERIFICATION & CERTIFICATIONS
Product Listing Scheme (PLS) Our Structural Timber system is a regulated Fire Safety Product,
complies with SCDF, FSSD requirements. TUV SUD is the certification body.
Singapore Green Label Structural Timber is a Carbon Negative building material, Venturer has worked
with Singapore Environment Council on assessing the criteria applicable to MET.
EN 1363/ EN 1364/ EN 1365 Required by SCDF, FSSD, for load-bearing timber systems to be used as
“compartment walls” between dwellings or tenanted units. The tests were executed in 2016 in
Vienna Austria. This testing allows for the reduction of redundant fire protection systems.
Tropical Termite Tests Not currently mandated by a regulatory body, however is elective by consultants
.Venturer has conducted Lab and Field tests under EN 118, in partnership with FRIM in Malaysia
Timber Product Quality and Origin Venturer is the first Timber Contractor to use independently audited
scientific testing of species and origin in order to backup warranties and sustainability, legality and quality
claims. The scheme is administered by ISO 65 Auditors Double Helix Tracking based in Singapore.
69. PREFABRICATED MET DESIGN & ASSEMBLY CONCEPT
Assemble
offsite in
subassembly
plant
Assemble
offsite in
subassembly
plant
Installation
of MEP by
Specialist
Interior &
exterior
finishes by
specialist
Quality
control &
RTO
certification
Prefabricated
timber
components
Eurocode
Compliant
70. ● Medical University of Graz study students timber
classroom V plaster and paint; decreased heart rate
heart rate and lower stress levels.
● A Canadian study demonstrated the colour and
texture of wood; elicit feelings of warmth, comfort
and relaxation.
● A New Zealand study of corporate interiors with and
without wood; wood interiors were shown to
attract significantly more adults to work for that
organisation.
● wood interiors have the ability to regulate average
moisture by absorbing moisture in humid times and
releasing it in when moisture levels drop improving
overall air quality and comfort.
BRICKS HOLDS NO CHARACTER, WOOD HOLDS ITS
HISTORY
Image courtesy of Planet ARK, ‘wood housing health and humanity’ report 2015
Health and Well Being
71. Canary Wharf Crossrail
MET Carbon Offset Calculator
6780 M3 of MET
x ‘Locked-in Carbon' 240 kg per M3*
1,627,200 kgs of Carbon (ex works)
LESS Transport = Koper Slovenia to Male is 9528
km port to port. There are 127 kgs of embodied
Carbon in all freight activity per tonne.
Total Gross tonnage 1627 tonnes 206,655 kgs of
total carbon embodied in transport . Diminishes
the Net Carbon Offset by 21%
Negative Carbon Offset -1,420.5
*Sources:
http://www.americanhardwood.org/.../A_preliminary_assessment_of_th
e_carbon_footprint
http://www.klhuk.com/sustainability.aspx
https://www.epa.gov/energy/greenhouse-gas-equivalencies-calculator
Recent Maldivian Resort Calculation
72. The mark of trust
ISO 65 Auditor, Double Helix Tracking Technologies, has been established in Singapore since 2007 and has pioneered the use of
scientific testing and analysis to prove legal bonafide origin and reinforce quality claims across both tropical and temperate
timber products.
Venturer are currently the only MET
Specialist who verify origin and
species
73. Scientific testing
• The only company to use scientific testing by default
• Verifies authenticity of document claims
• Detects and deters substitution and fraud
• Clear, independent, scientific evidence in case of dispute
• Demonstration of best practice
• Statistical process control standard model
• Diverse range of Global scientific testing partners in :
Wood anatomy
Stable isotopes
Plant genetics
Physical property testing
