Spray Foam Insulation in Cary, NC

Spray Foam Insulation in Cary follows the town's growth pattern. Cary grew from 3,356 people in 1960 to 7,686 in 1970 after Research Triangle Park opened nearby, and to 94,536 by 2000, according to Wikipedia. In 1971 the town created planned unit development zoning, and the 967-acre Kildaire Farms development became North Carolina's first PUD. Older subdivisions such as Farmington Woods, Greenwood Forest and Kildaire Farms kept many of their trees.

1970s and 1980s houses

Houses from Cary's first big wave are now 40 to 50 years old. Their attic insulation has settled, their crawl space batts have sagged, and their original ductwork is often leaky. Air sealing the attic and adding loose fill is the usual first step. In crawl spaces, we replace wet or fallen batts or seal the space entirely, depending on moisture and drainage.

Bonus rooms in later neighborhoods

Houses from the 1990s and 2000s often have rooms over the garage that run hot. We get into the side attics, back the kneewalls, seal the floor joist bays and fill the floor over the garage. Some owners choose open-cell foam on the roof deck instead, which also brings attic ductwork into the conditioned space.

Shade helps, moisture does not

Those mature trees shade roofs, which cuts summer heat gain, but leaves in gutters and shaded, damp ground around foundations can mean wetter crawl spaces. Wikipedia notes Cary averages about 3.2 inches of snow a year and that tropical systems can reach it, usually weakened. We always check grading and gutters before crawl space work.

A typical Cary job

On a 1980s two-story in an established neighborhood, a common scope is: seal the attic bypasses and hatch, blow cellulose or fiberglass to R-49, back the bonus room kneewalls, and pull out and replace the fallen batts in the crawl space. Some owners add closed-cell foam on the rim joist while the crawl space is open. Each item gets its own line on the quote so you can choose. HomeGuide's national ranges put attic air sealing at $350 to $3,000 and a crawl space vapor barrier at $1,200 to $4,000, which gives a rough sense of scale before we see the house.

What the house is worth

Cary's median owner-occupied home value was $404,300 for 2017 to 2021, with a homeownership rate of 66.8%. Owners tend to stay and invest in comfort, and sealing work is a small cost next to a new HVAC system. Get a free estimate