Project Description

Rim Joist Project in Altoona, Iowa

Drafty Rooms and Cold Floors in Altoona

In a typical Iowa home, the rim joist area is a large source of energy loss. The rim joist is at the edge of your wood floor framing system, which sits on top of your home’s foundation walls. There are a lot of seams that come together at this point and it is a common area that lacks the appropriate air sealing. This allows the cold winter air outside to leak through the wood joints, gaps, and openings for duct, plumbing, and electric wires.

In this case, the rim joist was insulated with fiberglass batt insulation. This insulation does not stop airflow. The cold air was leaking in causing drafty rooms and cold floors.


fiberglass insulation in rim joist
Originally, fiberglass batt insulation was used to insulate in the rim joist on this Altoona, IA home. This did not prevent the cold air from leaking in.

Spray Foam Insulation

Our solution, spray foam insulation. Spray foam insulation forms an air barrier wherever it’s applied to diminish air leakage from within the home. The benefit to spray foam is that it air-seals and insulates at the same time. The material can’t be damaged by mold or moisture and doesn’t settle or compress over time.


soray foam in rim joist area
Spray foam provides an air barrier to wherever it is applied to help diminish air leakage from the home.

Contact Us

Call Home Solutions of Iowa today for your free Home Performance Evaluation, and find out how our home comfort solutions can maximize your home’s comfort and efficiency for the chilly months ahead!

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