Straight answers about spray foam in Houston
What it costs, which foam goes where, what the code actually says, and what to ask before you hire anyone. Written by the people who spray it, for the people who are about to pay for it.
How much does spray foam insulation cost in Houston?
Real installed prices for spray foam in Houston by application. Open-cell runs about $2.50 to $3.50 per square foot, closed-cell $3.50 to $5.00, and a typical attic lands between $4,000 and $10,000.
Open-cell or closed-cell spray foam for a Houston home?
Open-cell is the usual choice for Houston attic roof decks. Closed-cell belongs in crawl spaces, on metal buildings and near the coast. Here is how to decide, assembly by assembly.
What R-value does Houston code require in the attic?
Houston is in IECC Climate Zone 2A. Depending on the code edition your jurisdiction enforces, the attic minimum is R-38 or R-49, and spray foam at the roof deck meets it as an unvented attic assembly.
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