Spray Foam Insulation in Norman, OK

Spray Foam Insulation in Norman covers more variety than most metro towns. Wikipedia describes the Miller and Chautauqua historic districts near the University of Oklahoma, with houses built from 1903 to 1935, mostly bungalows and Craftsman style. Norman then grew fast after Interstate 35 opened in 1959, from 33,412 people in 1960 to 52,117 in 1970, and annexed about 174 square miles in the 1960s. Today the 2020 census counts 55,694 housing units, from student rentals near campus to rural homes around Lake Thunderbird.

Historic houses

Older Norman bungalows often have balloon framing, low attics, open wall cavities that connect basement or crawl space to attic, and very little original insulation. Exterior changes in the Miller and Chautauqua districts need approval from the Norman Historic Preservation Commission, so we keep work inside the house where we can, sealing and insulating the attic and dense-packing walls from the inside when that suits the project.

Postwar and newer homes

The 1960s and 1970s neighborhoods west of downtown are mostly one-story ranches with simple attics, which suit air sealing plus blown-in insulation. Newer homes on the east side and in the rural areas often have bonus rooms, larger attics and outbuildings that benefit from spray foam.

Rentals

Wikipedia reports that 48.6 percent of Norman's occupied housing was renter-occupied in 2020. Landlords often ask for attic work that cuts tenant complaints about hot rooms without a big remodel. Sealing and blowing in to depth is usually the answer for that.

Rooms over garages and newer east-side homes

East of Interstate 35 and out toward the lake, many Norman houses were built in the last thirty years with two stories, attached garages and bonus rooms. Those rooms are the usual complaint: hot in August, cold on January mornings. The fix is to treat the room as its own small project. We insulate the floor over the garage, foam or re-batt the kneewalls, seal the attic floor around the room and check that the supply duct feeding it is not crushed or leaking in the attic. Because Norman's July lows average 71.2F, upstairs rooms often never cool off overnight unless the shell around them is tight.

Climate and utilities

Norman's average July high is 92.5F and its winds average near 10 mph, mostly from the south, which pushes air through leaky homes. Two electric providers serve the city, OG&E and Oklahoma Electric Cooperative. OG&E customers can check its attic rebate rules; OEC members should ask the cooperative about its programs. Get a free estimate