Spray Foam Insulation: Difference between revisions
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Expensive but high R - [https://www.insulation4less.com/spray-foam-insulation-for-metal-buildings-and-pole-barns?gclid=CjwKCAjw9qiTBhBbEiwAp-GE0QR7wK12nU06uV4wPql4CQ8Ql5PPwrG5OEL_mV9Y8y7Wwtgi7vffhxoCXvsQAvD_BwE] | Expensive but high R - [https://www.insulation4less.com/spray-foam-insulation-for-metal-buildings-and-pole-barns?gclid=CjwKCAjw9qiTBhBbEiwAp-GE0QR7wK12nU06uV4wPql4CQ8Ql5PPwrG5OEL_mV9Y8y7Wwtgi7vffhxoCXvsQAvD_BwE] | ||
=Advantages= | |||
*Longer life - claimed 80 years vs usual 20 years [https://koalainsulation.com/f/Hollywood/blog-detail/spray-foam-myths-debunked]. But, undamaged fiberglass also asts 100 years [https://www.google.com/search?sxsrf=ALeKk026QG9BbsZl0rNsBS9KmerMgczY_w%3A1602863734253&source=hp&ei=dsKJX6q8DJDYsAXHkpG4Cw&q=lifetime+of+fiberglass+insulation&btnK=Google+Search&oq=how+to+configure+nvidia+geforce+gtx+1650+super+on+linux+mint&gs_lcp=CgZwc3ktYWIQAzIFCCEQoAEyBQghEKsCMgUIIRCrAjoOCAAQ6gIQtAIQmgEQ5QI6DgguELEDEMcBEKMCEJMCOggILhDHARCvAToLCC4QsQMQxwEQowI6CAgAELEDEIMBOggILhCxAxCDAToFCAAQsQM6AggAOgQIABAKOgYIABAWEB46CAghEBYQHRAeOgcIIRAKEKABUMsQWOmzAWD8tAFoBnAAeACAAeQGiAGhS5IBDTExLjQ3LjMuMi42LTGYAQCgAQGqAQdnd3Mtd2l6sAEG&sclient=psy-ab&ved=0ahUKEwiqz4DcvLnsAhUQLKwKHUdJBLcQ4dUDCAk&uact=5] | |||
*May form watertight seal but don't count on it, for example under PV panels? | |||
=Sourcing= | =Sourcing= | ||
Latest revision as of 22:06, 20 June 2024
About
Is spray foam any good?
Good for direct on metal spraying.
Expensive but high R - [1]
Advantages
- Longer life - claimed 80 years vs usual 20 years [2]. But, undamaged fiberglass also asts 100 years [3]
- May form watertight seal but don't count on it, for example under PV panels?
Sourcing
- $1.2 per sf per R6 (1" thick) - [4]
Polyethylene Foam
Polyethylene foam - R15 at 50 cents/sf [5]