Air Leak Tape Siding Osb

With taped seams the zip system sheathing is both an air barrier and a water resistive barrier wrb.

Air leak tape siding osb. Martin s article says that it s best to. Juneau s failing sips had osb rot near panel seams. To create a more airtight ceiling construct rigid foam boxes that are air sealed with tape and canned spray foam. Eric whetzel view gallery 8 images.

Air leaks at recessed can lights often lead to winter ice dams. But to reach that goal of 1ach50 i ve decided to take a page from the passivehouse playbook and tape my exterior sheathing seams. Learn how to use siga tape to air seal your house. This treated oriented strand board osb sheathing manufactured by huber engineered woods is becoming a common sight on new houses.

The joints weren t taped the osb wasn t painted and we got air tightness tests of 0 38ac 50kpa and 0 45ac 50kpa. Investigators concluded that air leaks through poorly sealed seams allowed the condensation of moisture from the exfiltrating air. Adheres to vinyl plywood osb foam metal aluminum and masonry. Forms a permanent waterproofing air vapor seal around doors and windows that prevents air and moisture leaks.

However in 2001 a cluster of sip failures in juneau alaska highlighted problems with sip sealing methods. Even recessed cans that are rated ic and airtight are known to leak. Matt risinger risinger homes in austin tx. In reading martin holiday s tape test article from march 2013 fine homebuilding i thought that siga wigluv was the clear winner as the best tape for osb sheathing seams.

Window and door sealing tape is great for use around doors windows and nailed fins and flanges. Protecto wrap 6 in. So i don t think there s any need to paint osb to air seal it its airtight enough already. I did an airtightness test on two irish passive house s lately using silicone clamped between the osb and the stud.