Air Leak Tape Siding Osb

However in 2001 a cluster of sip failures in juneau alaska highlighted problems with sip sealing methods.
Air leak tape siding osb. Martin s article says that it s best to. It s hard to imagine psa tape conditions tougher than adhering to both rough side osb and a window flange aluminum and pvc. Investigators concluded that air leaks through poorly sealed seams allowed the condensation of moisture from the exfiltrating air. Air leaks at recessed can lights often lead to winter ice dams.
This video is a bowa builders internal training seminar for site superintendents. All vinyl siding leaks everyone needs to understand that vinyl siding leaks and allows water moisture to pass through it and make contact with the house sheathing. Both the air temperature as well as the temperature of the sheathing must be at or above 20 f at the time of tape installation. Because siding will leak add a backup layer to collect and drain the rainwater.
Learn how to use siga tape to air seal your house. And stop roof repairs in the rain. Eric whetzel view gallery 8 images. The subject matter is best practices for installing house wrap to drain water and stop air.
It turns out that only one tape in our testing adhered without fail to everything even when wetted. The house had absolutely no type of house wrap rain screen or even tar paper on it just vinyl siding attached directly to the osb sheathing. With taped seams the zip system sheathing is both an air barrier and a water resistive barrier wrb. Juneau s failing sips had osb rot near panel seams.
Tapes are also used to seal duct seams to seal leaks around penetrations through air barriers for example to seal around plumbing vents and to seal sheet goods to a variety. Even recessed cans that are rated ic and airtight are known to leak. This treated oriented strand board osb sheathing manufactured by huber engineered woods is becoming a common sight on new houses. Zip system flashing tape from huber engineered woods.
Per the icc esr report wrinkles in the tape are permissible unless they create a leak path unfortunately we have seen the tape installed improperly on many occasions in the field. To limit air leakage builders use tapes to seal the seams of a variety of membranes and buildings products including housewrap polyethylene osb and plywood. But to reach that goal of 1ach50 i ve decided to take a page from the passivehouse playbook and tape my exterior sheathing seams. Matt risinger risinger homes in austin tx.