I just had (and paid for) 2" of spray foam on my crawl space walls. I checked the thickness today and it is rarely 2" thick, usually just under 1.5", and sometimes just 1" thick.
Is this normal? Or should I be requesting a 25-ish% refund?
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Sign up to join this communityI just had (and paid for) 2" of spray foam on my crawl space walls. I checked the thickness today and it is rarely 2" thick, usually just under 1.5", and sometimes just 1" thick.
Is this normal? Or should I be requesting a 25-ish% refund?
No this is not normal. Spray foam (or XPS/EPS foam) provides a specific R value per inch in absolute terms. It is not at all related to how framing lumber is measured.
Rather then ask for a refund, I would ask the contractor to add more foam to meet the agreed upon thickness. Otherwise, you are trading efficiency and long-term savings for a short-term refund. Additionally, it would be difficult to calculate how much of a refund is appropriate. Easier to just fix the problem.