continuous air barrier design and constructability lessons learned
TRANSCRIPT
![Page 1: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/1.jpg)
Continuous Air Barrier Design and Constructability: Lessons Learned
Presented By: Dan Taylor & Brian Gibson
![Page 2: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/2.jpg)
What are air barriers and why are they important
• Premier
www.aridresources.com
![Page 3: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/3.jpg)
AS THEY RELATE TO THE BUILDING ENCLOSURE
www.aridresources.com
![Page 4: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/4.jpg)
AS THEY RELATE TO THE BUILDING ENCLOSURE
Introduction to Air Barriers
www.aridresources.com
![Page 5: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/5.jpg)
Moisture Flow
Liquid Moisture (Water) causes 90% of the problems in buildings
www.aridresources.com
![Page 6: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/6.jpg)
Moisture ProblemsWater vapor condensing in the building envelope leads to problems:
Mold
Corrosion
Wood rot
Ice Lensing, etc.
www.aridresources.com
![Page 7: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/7.jpg)
Building Envelope Deterioration
www.aridresources.com
![Page 8: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/8.jpg)
Water Transport1 METRE
1 METRE
2 cm x 2 cm HOLE1 METRE
1 METRE
TRANSPORT VIA AIR LEAKAGE
TRANSPORT VIA DIFFUSION
*ASSUMES RH 40%, 2 COATS ENAMEL PAINT, OTTAWA CLIMATE
30 LITRES
.5 LITRESwww.aridresources.com
![Page 9: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/9.jpg)
Building Envelope Deterioration
www.aridresources.com
![Page 10: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/10.jpg)
Self-Adhered Membranes• Limitations – Typical of Most Manufacturers
• Must be covered, not designed for permanent exposure.
• Not to be used in direct contact with flexible PVC/vinyl membranes or gaskets
• Not to be used with New PVC membranes – TPO at this time
• Products manufactured from EPDMwww.aridresources.com
![Page 11: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/11.jpg)
One World
www.aridresources.com
![Page 12: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/12.jpg)
Self-Adhered Membranes
• Properties – Typical of Most Manufacturers• Thickness: 1.0 mm• Application temp: minimum + 5o C (41o F) • Service temp: -40o C (-40o F) to 70o C (158o
F) • Elongation: 200% minimum• Air Leakage: 0.0005 L/s.m2
• Self-sealing when penetrated with self-tapping screws
www.aridresources.com
![Page 13: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/13.jpg)
Liquid Membranes
• Lots of types –• Some Air / Vapor Barriers• Some are Vapor Permeable
• Memorial Stadium• East Side Addition
www.aridresources.com
![Page 14: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/14.jpg)
Residence Hall at the University of Nebraska
Memorial Stadium at the University of Nebraska
www.aridresources.com
![Page 15: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/15.jpg)
Liquid Membranes• Lots of types –
• One Component• Two Component• Cold Applied / Hot Applied• Spray or Trowel Applied - UNMC Eye Institute
• Some may be applied to Green Concrete
![Page 16: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/16.jpg)
Liquid Membranes
• Properties – Typical Manufacturer • 7-10 dry mils up to 60 dry mils• Application temp min: 20 F (similar to SA)• 40-90 degrees• Elongation: 100% - 1800% • Solids by content may be 60% - 100 % depending on material (ie. 100 % solids by content means wet thickness = dry thickness
www.aridresources.com
![Page 17: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/17.jpg)
• Lots of types –• Low Density• Medium Density• High Density• Open cell• Closed cell
Sprayed Urethane Foam
www.aridresources.com
![Page 18: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/18.jpg)
• Lots of types –• Because it is a “foam”, does not mean it is an Air Barrier !!
• May be suitable only as a thermal insulation
Sprayed Urethane Foam
www.aridresources.com
![Page 19: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/19.jpg)
www.aridresources.com
![Page 20: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/20.jpg)
• Have the installer and the contractor document the installation
• Verify proper installation and confirm installer’s knowledge through site audits
• Track the manufacturer, the contractor and the installer though a database
ABAA Quality Assurance ProgramSummary of the Program
www.aridresources.com
![Page 21: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/21.jpg)
ASTM D 4541 pull adhesion testing.
www.aridresources.com
![Page 22: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/22.jpg)
Training installers to install self adhered membranes.
www.aridresources.com
![Page 23: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/23.jpg)
Design Considerations
www.aridresources.com
![Page 24: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/24.jpg)
www.aridresources.com
![Page 25: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/25.jpg)
www.aridresources.com
![Page 26: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/26.jpg)
www.aridresources.com
![Page 27: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/27.jpg)
www.aridresources.com
![Page 28: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/28.jpg)
www.aridresources.com
![Page 29: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/29.jpg)
www.aridresources.com
![Page 30: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/30.jpg)
www.aridresources.com
![Page 31: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/31.jpg)
-Memorial Stadium
Where do I go from here…Look at assemblies, not just single materials
• What is the performance requirements of my building ?
• What is the sequence of construction ?
Conclusion
www.aridresources.com
![Page 32: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/32.jpg)
• Where do I go from here…• How do I specify an assembly properly ?
• ABAA specifications• ABAA approved materials• ABAA approved assemblies (coming soon)
Conclusion
www.aridresources.com
![Page 33: Continuous air barrier design and constructability lessons learned](https://reader035.vdocuments.us/reader035/viewer/2022062705/5568546ad8b42a73038b504a/html5/thumbnails/33.jpg)
Questions?Any questions please email Brian Gibson at [email protected]