0 Helpful?

Air-tight Construction Caused Plasterboard to Blow Out?

We had cellulose blown into a remodeled wall this week-end. Plasterboard broke open under the pressure. The installer blamed the air-tight construction. Does this seem right?

We re-built a wall in our home. The exterior plywood sheathing was caulked against the studs and the seams sealed with Siga Wigluv tape. The interior studs were caulked then Siga Majpell stapled and sealed with Siga Sicrall tape and Conservation Technology gaskets applied to boundaries where plasterboard was applied. The plasterboard was screwed in place per code and then caulked and mudded.

Parts of the wall have 10" cavities, other sections are 6", and the area underneath the windows and around the door only 4" deep. It was the 4" sections were which the problem. We assumed the pressure was too high for the small, narrow spaces. If air-tight construction was responsible, the whole wall (God forbid) should have been an issue, right?

Asked by Deb Davis
Posted Jan 22, 2013 11:18 AM ET

Tags:

1 Answer

Select your preferred way to display the comments and click "Save settings" to activate your changes.
1.

Deb,
Very interesting question!

Certainly, the installation of cellulose requires a path for air to escape the stud cavities when the walls are being blown. You need air relief.

Answered by Martin Holladay, GBA Advisor
Posted Jan 22, 2013 12:26 PM ET

Other Questions in Green building techniques

Fill stud cavity with fiberglass insulation?

In Green building techniques | Asked by Joel Cheely | Dec 4, 16

How important is a thermal break between a house foundation and an attached garage foundation?

In Green building techniques | Asked by Eric Whetzel | Dec 2, 16

How would you air seal existing sheet rock to the bottom plate?

In Energy efficiency and durability | Asked by david schreiber | Dec 3, 16

Ipe wood vs. Azek (PVC) decking

In General questions | Asked by Betsy Leibson | Apr 11, 16

Boards covering the top plate to air seal in attic - Top plate is not accessible

In Energy efficiency and durability | Asked by Charles Lee | Dec 1, 16
Register for a free account and join the conversation


Get a free account and join the conversation!
Become a GBA PRO!