New Generation Air Barriers Presentation Points

New Generation Air Barriers Presentation Points

New Generation Air Barriers
Fluid Applied Air Barriers
Market Potential
Presentation Points
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Introduction to Air Barriers – Efficiency
Fluid Applied Air / Moisture Barriers
Technical Attributes
Long Beach, Washington Trendwest Project
Envelope Thermal Scan
Residential Mock-Up
•Built 1992
•LP siding
• A/C Power
$265/month
July 2007
Implementation of Air Barrier
Value of Air Tight Construction
• Fluid-applied air/
moisture barrier
• Copper flashing
• Cedar siding
double stain 6 sides
• A/C Power
$135/month
July 2008
Value
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Home made air and watertight
Power consumption July 2007 $265
Power consumption July 2008 $135
Stop the air leaks – Increase HVAC
efficiency
Research
Adhesion
• ASTM D 4541
Requirement:
Minimum 15 psi
Test Results:
Exceed substrate strength
(> 70 psi for plywood)
Racking Test
Assesses effect of
building
movements on
sheathing joint
treatments
Requirement:
Resist 1/8-inch deformation (with tie-downs)
Results:
Resisted >3/4 inch with (tie downs)
ASTM E 283
Air Leakage Testing
ASTM D 1970
Nail Seals
• Test for roof flashings.
• Drive nail though coating into
plywood and place 5-inch head
of water.
• Keep in 40˚F conditions for 72
hours
• Check for leakage.
• Fluid applied passes
AATCC 127
ASTM E 331
(Building Paper)
ASTM E 331
(Building Paper)
ASTM E 283
Air Leakage Testing
Effect of wind loading on sheet products
ASTM E 331
(Building Wrap)
AATCC Water Column
Modified to Measure Ultimate Water
Penetration Resistance
Modified Water Column
200
100
0
5-hour Water Penetration
Resistance Requirement
Building Wrap
A
55
Did not meet 55 cm for 5hours requirement
30.6
30.5
22.9
Building Wrap
D
480
Building Wrap
C
600
500
400
300
Limit of testing fixture, did not fail
Building Wrap
B
845
Type D
Buidling
Paper
1000
900
800
700
WRB Coating
Head of Water, cm
Ultimate Water Penetration Resistance of WRB
Products
Product
Trendwest Project
Long Beach, Washington
Installation
Scope
Wall Assembly
1. Wood frame substrate
2. Joint treatment
3. Air barrier and moisture
protection
4. Flashing
5. Flashing integration
6. Rain Screen type furring
7. Siding
Installation
Installation
Completion
Site Testing
Result of water test
Infra Red Scan
Infra-Red Scan
Infra-Red Scan
Infra Red Scan Hot Spot !
Summary
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Air barriers save energy
Air barriers prevent penetration
Fluid applied air barriers work
Trendwest project a success
No water penetration
No birds were harmed
Questions ?