18, May 2024
How Spray Foam Insulation Works

spray foam insulation is made up of tiny pockets that can fill in nooks and crannies and create a barrier against air movement and sound. It can be used in walls, roofs, attics, basements and more. The foam is sprayed on the surface and then expands to fill the space. It is a very effective insulator that helps to lower energy bills and conserve energy.

Enhancing Indoor Air Quality with Spray Foam Insulation

Before installing the spray foam, a professional contractor will remove any existing insulation or build an entirely new wall or roof for new construction. They will then clean the area where they will apply the spray foam and make sure it is free of dust, dirt and debris.

The liquid chemicals needed to create spray foam are stored in separate hoppers or tanks, called A-side and B-side. The liquid chemicals are then transported through a hose and nozzle to the spray gun, where they react to create the polyurethane foam. The spray nozzle can be adjusted for width and direction, which allows the professionals to precisely cover the desired areas.

Homeowners can choose between open and closed cell foam when deciding on the best type of spray foam insulation for their homes. Open cell spray foam has small cells that aren’t completely encapsulated, which makes it a softer and more flexible material. Closed cell spray foam, on the other hand, has cells that are closed and pressed together. The higher density of the closed cell spray foam makes it a more rigid and stable material. Both types of spray foam provide a high R-value, but the choice between the two depends on what your home needs are and what kind of environment you live in.


316 Insulation
420 37th St NW – Unit F, Auburn, WA 98001
(253) 332-7606

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