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Green Basics

Frequently Asked Questions

Before posting your question on our Q&A page, check out these FAQs.

FAQs

We’ve pulled together the most common questions posted on the GBA site.

Q. Do I need a vapor barrier?

A. Probably not. For more information, see:

Do I Need a Vapor Retarder? and

Vapor Retarders and Vapor Barriers.

Q. How do I insulate my cathedral ceiling?

A. For everything you need to know, see How to Build an Insulated Cathedral Ceiling.

Q. How do I insulate my basement wall?

A. For everything you need to know, see How to Insulate a Basement Wall.

Q. How do I fix my crawl space, which is leaky / cold / moldy / poorly insulated?

A. For everything you need to know, see Building an Unvented Crawl Space.

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