ROCKWOOL™ provided event at the Marshall County Facility and The Peabody Memphis; hosted by Todd Kimmel along with Keith P. Nelson and presented by ROCKWOOL™. Thank you for your attendance, participation, and discussions, at the Cladding Summit. We sincerely hope that you found the presentations informative and engaging. ROCKWOOL is committed to the continued development of high value educational presentations and seminars. Your thoughts and feedback will help to improve our efforts to deliver more value for you and future participants.

1. ROCKWOOL
Building Science
Designing High Performance
Building Enclosures
Rainscreen Cladding Summit
AnHab – December 04, 2018

2. 2AnHab December 04, 2018  © ROCKWOOL International A/SSource: RDH Building Science/John Straube

3. 3AnHab December 04, 2018  © ROCKWOOL International A/SSource: RDH Building Science/John Straube

4. 4
In all climates, the building enclosure has a
major impact on the total energy use of the
building and the comfort of the occupants.
AnHab December 04, 2018  © ROCKWOOL International A/S

5. 5
Status of Energy Codes
AnHab December 04, 2018  © ROCKWOOL International A/S
TX
WA
OR
CA
NV
UT
AZ
WY
MT
ID
CO
NM
ND
SD
KS
OK
NE
MO
IN
IL
FL
NY
MS
AL GA
SC
NC
VA
KY
TN
MN
IA
MI
WI
OH
LA
AR
WV
PA
ME
VT
NH
MA
NJ
CT
RI
DE
MD
DC
90.1-2013 or equivalent
More energy efficient than 90.1-2013
Less energy efficient than 90.1-2007
AK
HI
Between 90.1-2010 and 90.1-2013
90.1-2010 or equivalent
90.1-2007 or equivalent
Between 90.1-2007 and 90.1-2010
No statewide code or home rule

6. 6AnHab December 04, 2018  © ROCKWOOL International A/S

7. 7
Thermal Bridging
A material with higher thermal
conductivity transferring heat
through an assembly with
substantially lower thermal
conductivity
AnHab December 04, 2018  © ROCKWOOL International A/S

8. 8
Sometimes,
exterior
insulation is the
only solution
AnHab December 04, 2018  © ROCKWOOL International A/S

9. Climate zone
Walls, above-grade
Mass Metal building Steel-framed Wood-framed and other
1 NR R-13.0 R-13.0 R-13.0
2 R-5.7ci R-13.0 R-13.0 R-13.0
3 R-7.6ci R-13.0 R-13.0 + R-3.8ci R-13.0
4 except Marine R-9.5ci R-13.0 R-13 + R-7.5ci R-13.0
5 and Marine 4 R-11.4ci R-13.0 R-13 + R-7.5ci R-13 + R-3.8ci
6 R-13.3ci R-13.0 R-13.0 + R-7.5ci R-13.0 + 7.5ci
7 R-15.2ci R-13.0+R-13.0ci R-13.0 + R-7.5ci R-13.0 + R-7.5ci
8 R-15.2ci R-13.0+R-19.0ci R-13.0 + R-7.5ci R-13.0 + R-15.6ci
9
Commercial - 2009 IECC Minimum Insulation Requirements
AnHab December 04, 2018  © ROCKWOOL International A/S

10. 10
Commercial - 2015 IECC Minimum Insulation Requirements
AnHab December 04, 2018  © ROCKWOOL International A/S
Climate zone
Walls, above-grade
Mass Metal building Metal framed Wood-framed and other
1 R-5.7ci R-13.0 + R-6.5ci R-13.0 + R-5ci R-13.0 + R-3.8ci or R-20.0
2 R-5.7ci R-13.0 + R-6.5ci R-13.0 + R-5ci R-13.0 + R-3.8ci or R-20 .0
3 R-7.6ci R-13.0 + R-6.5ci R-13.0 + R-7.5ci R-13.0 + R-3.8ci or R-20.0
4 except Marine R-9.5ci R-13.0 + R-13.0ci R-13.0 + R-7.5ci R-13.0 + R-3.8ci or R-20.0
5 and Marine 4 R-11.4ci R-13.0 + R-13.0ci R-13.0 + R-7.5ci R-13.0 + R-3.8ci or R-20.0
6 R-13.3ci R-13.0 + R-13.0ci R-13.0 + R-7.5ci R-13.0 + R-7.5 or R-20.0 + R-3.8ci
7 R-15.2ci R-13.0 + R-13.0ci R-13.0 + R-7.5ci R-13.0 + R-7.5ci or R-20.0 + R-3.8ci
8 R-25.0ci R-13.0 + R-13.0ci R-13.0 + R-7.5ci R-13.0 + R-15.6ci or R-20.0 + R-10ci

11. ≈50%
Average R-value reduction due to
Z-girts, mainly based on spacing
and girt orientation
11AnHab December 04, 2018  © ROCKWOOL International A/S

12. “Insulation that is uncompressed and continuous across all
structural members without thermal bridges other than
fasteners and service openings.”
ASHRAE 90.1
12
Continuous insulation “ci”
AnHab December 04, 2018  © ROCKWOOL International A/S

13. ≈50%
Average R-value reduction due to
Z-girts, mainly based on spacing
and girt orientation
13AnHab December 04, 2018  © ROCKWOOL International A/S

14. Horizontal 16-gauge galvanized steel Z-girts @ 32.0” o.c.
Fastened with steel screws at 16” o.c.
¼” polystyrene shims
R-19 fiberglass
R-10.75 stone wool
R-22.35
U-0.0447
≈30% reduction
14
Modeling
Rendering from HEAT3 8.02
AnHab December 04, 2018  © ROCKWOOL International A/S

15. 15
Services
Building Science Support
R-Value Calculations
Thermal Bridging Modeling
Hygrothermal Modeling
Full Building Modeling
“Helping our customers to overcome the
challenges of the increasing demands on
energy efficiency in buildings”
Global EDC
AnHab December 04, 2018  © ROCKWOOL International A/S

16. 16
Limitations of Dew Point Calculation
AnHab December 04, 2018  © ROCKWOOL International A/S

17. 17
Envelope Wetting Sources and Mechanisms
Rain (1)
Absorption
Penetration
Splash and drips
Water vapor movement (2)
Diffusion
Convection (air leaks)
Built in (3)
Ground (4)
Capillary (wicking)
Gravity
Diffusion
AnHab December 04, 2018  © ROCKWOOL International A/S

18. Design for drying
Follow vapor control recommendations
Continuity of air barriers and insulation to
control condensation problems
Drained screen assembly works best
Hygrothermal Analysis
WUFI
18
Practical Design Rules
AnHab December 04, 2018  © ROCKWOOL International A/S

19. 19
Montreal, QC
Habitat ‘67
AnHab December 04, 2018  © ROCKWOOL International A/S

20. 20
Measuring R-value to ASTM C-518 in a heat flow meter apparatus
AnHab December 04, 2018  © ROCKWOOL International A/S

21. 21AnHab © ROCKWOOL International A/S
Testing Apparatus

22. R-value and Water Absorption

23. Test walls compared on three main criteria
Measured volume of water collected from
each wall surface of the drainage troughs
Amount of water stored in the assembly
following the water application
Length of time required for the wall to dry
23
Drainage Balance Testing
AnHab December 04, 2018  © ROCKWOOL International A/S

24. 24
Comparison of drying after a 10-minute wetting
AnHab December 04, 2018  © ROCKWOOL International A/S

25. 25
Typical Wind Speed and Wind Washing
AnHab December 04, 2018  © ROCKWOOL International A/S

26. 26
Wind Washing Study Results
AnHab December 04, 2018  © ROCKWOOL International A/S

27. Thank you
Questions?
ROCKWOOL North America
Antoine Habellion, M.Eng., M.A.S.
Building Science Manager
antoine.habellion@rockwool.com
Cell: +1 (905) 691-0875
27AnHab December 04, 2018  © ROCKWOOL International A/S