Frequently Asked Questions

Closed-cell foam keeps warm, moist air off cold surfaces, so the condensation that feeds mold does not form there. It does not remove existing mold; that and the moisture source come first.

Closed-cell. HomeGuide lists it at R-5 to R-7 per inch, compared with R-3.5 to R-3.7 for open-cell.

Some insurers and home inspectors raise concerns because foam can hide roof leaks or rot, and badly mixed foam can cause odor problems. Proper installation, the right foam for each surface, and fixing leaks first address most of those concerns. Ask your insurer if you are unsure.

HomeGuide lists $1.50 to $5.00 per square foot nationally, about $2,000 to $2,500 for rim joists and $3,000 to $8,000 for a foamed attic. We measure and send a written estimate, and that is the price.

Otsego County is in Climate Zone 6A. ENERGY STAR recommends R-60 for an uninsulated attic, or about R-49 added to 3 to 4 inches already there.

Heated basements, yes. Cold attics, crawl spaces and unheated buildings need temperatures within the foam's working range, so we plan those around the weather.

Closed-cell, at R-5 to R-7 per inch per HomeGuide.

Inside heated spaces, yes. Cold spaces need warming or a milder day.

Typically 2 to 3 inches of closed-cell.

It prevents condensation on the surfaces it covers, which removes a common cause. Existing mold and leaks come first.

Air sealing does most of the work; insulation depth and eave ventilation finish it.

They treat the symptom at the edge. Keeping heat out of the attic treats the cause.

Usually well over a foot and a half, depending on material.

Consumers Energy lists attic rebates tied to the final R-value for its customers.

Warm, moist basement air is reaching cold wood. Closed-cell foam stops that.

Yes. Basements are heated, so this work happens year round.

Yes, it is much easier and works better before framing.

Consumers Energy lists a rim joist rebate for its customers.

It keeps the space much warmer, which greatly reduces the risk.

Often, if the space can be warmed enough for foam. We plan around the weather.

Yes, by insulating and sealing the floor from below.

ENERGY STAR recommends R-30 for floors in Zone 6.

Yes. Closed-cell keeps moist air off the cold steel.

The steel has to be within the product's temperature range, so the building may need heating first.

Some uses require a thermal or ignition barrier. We explain what applies.

It depends on how warm you keep it; we size it to your use.

Usually well over a foot and a half, depending on material.

Some settling is expected and built into the installed depth.

Yes, per square foot: HomeGuide lists $1.00 to $2.80 versus $1.50 to $5.00.

If the old material is dry and clean, yes.