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Usually the pilot, thermocouple or ignition. See common causes.
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Usually heat escaping through thin attic insulation.
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Home » Insulation » Types » Spray Foam Insulation
Service · A1 Chimney & Roofing
Spray foam insulation is a foam sprayed in place so it expands, air-seals, and insulates. It is used where the attic or the cavity is a candidate for it. It is not the default for every house.

The work
Open-cell and closed-cell foams behave differently, and the roof ventilation changes with either one. An attic that was built to breathe through the soffits cannot be foamed shut at the eaves without a plan for where the air and the moisture will go. The visit is to see whether foam fits this roof, or whether blown-in insulation on the floor is the simpler job.
Existing wet insulation is removed first. That scope is insulation removal.
Why it matters
Foam is hard to undo, so it is recommended only when the roof deck, the ventilation, and the use of the attic support it. A vented attic with a bare floor often wants insulation on the floor, not foam on the rafters.
No savings percentage is promised. The result, when foam is the right choice, is a sealed layer where it was sprayed.
What to expect
The attic is inspected, foam versus a floor insulation is explained with the price, and spraying starts only after you approve that scope.
A1 Chimney & Roofing is a nationwide team with its own licensed and insured technicians in 27 states. The price is explained before any work starts. Homeowners have left 25,719 Google reviews with a 5.0 rating.
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Your technician checks the chimney and the roof around it, and photographs what they find.
You get the findings, the photos and a written price. Nothing starts until you say yes.
Drop cloths down, debris hauled away, before-and-after photos sent to you.
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To ask whether spray foam fits the attic, call (855) 8-CALL-A1 or send photos for a free estimate.
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