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 12:18 PM 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 1:26 PM ET

Other Questions in Green building techniques

Basement slab perimeter insulation

In General questions | Asked by Nicholas C | May 28, 15

Spaceloft my only option?

In GBA Pro help | Asked by Jan Verschuren | May 29, 15

Insulation and mechanical upgrades

In Mechanicals | Asked by Jeffrey S | May 29, 15

How to air seal from interior with pine siding?

In Green building techniques | Asked by christian routh | May 29, 15

Minisplit in tandem with a conventional heat pump?

In Mechanicals | Asked by Dean Wiley | May 27, 15
Register for a free account and join the conversation


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