Spray Foam Insulation in Montgomery, AL

Spray Foam Insulation in Montgomery has to fit a wide range of houses. The city was incorporated in 1819 when two rival towns merged, and its neighborhoods record every building era since. The 2020 census counted 93,920 housing units in the city. Some sit in the Garden District and Cloverdale, where houses date from about 1875 to 1949. Others are in Dalraida, where the first lots sold in 1914, in the post-war ranch neighborhoods that ring the center, or in subdivisions built in the last twenty years.

Historic districts: raised floors and open walls

The Garden District and Cloverdale Historic District are listed on the National Register, and their Late Victorian and Gothic Revival houses share traits that matter for insulation. Many sit on brick piers over crawl spaces, with tall ceilings and wall cavities that run open from the crawl space to the attic. Air moves through those cavities like a chimney: hot attic air in summer, damp crawl space air from below. Sealing the top and bottom of those cavities, insulating the floor or closing the crawl space, and dealing with the attic usually make a bigger difference than anything else. We work around plaster walls, original trim and heart pine floors with care, and we explain where foam belongs and where a lighter touch is better.

Ranches and split-levels

Mid-century houses across Montgomery often have a few inches of settled insulation in the attic and ductwork running through it. On these homes the big decision is whether to seal and top up the attic floor or foam the roof deck so the ducts sit inside the insulated space. If the air handler is in the attic, foaming the deck often makes more sense; if it is in a closet indoors and the ducts are short, a sealed floor with deep loose fill can do the job for less.

Newer homes

Houses built to Alabama's current code had to pass a blower door test, but bonus rooms over garages and rooms with kneewalls still run hot. We look at those rooms from the attic side, where the gaps usually are.

Choosing between companies

Montgomery has a number of spray foam insulation companies and general insulation contractors, and quotes can be hard to compare. Ask each one to write down the material, thickness and target R-value for every area, what gets sealed before insulating, and how ducts in the attic or crawl space are handled. A quote that just says "foam the attic" leaves too much open.

The heat and the damp

Montgomery's 1991-2020 normals show an average July high of 93.7F, about 86 days a year at 90F or above, and annual rainfall of 51.16 inches spread across roughly 107 days. Annual relative humidity averages 70.9%. That combination is why crawl spaces, ductwork and attics get most of our attention here. We give a written, area-by-area quote after the visit. Get a free estimate