Adding Spray Foam Insulation to Basements

Finishing a basement space should always include insulation to control temperature and dampness associated with underground spaces.  Of all the types of insulation you can use when finishing a basement, spray foam insulation is the best choice for all around efficiency and effectiveness.

Basements by their very nature are typically damp due to the diffusion of moisture from the damp concrete into the interior of a home or building.  Closed-cell spray foam is called for in this application because of its ability to effectively block moisture. 

Batt insulation is sometimes used in basement walls to insulate between wall studs.  Over time, however, it will become damp as the concrete absorbs and disperses moisture into the wall cavities.  Further, batt insulation will sag as time goes on, leaving gaps in the insulation and resulting in cold spots in the basement.   Foam has none of these issues as it is permanently adhered to the concrete and seals out moisture as well as any air flow.  Batt is cheaper than spray foam, but it will not last as long or do as effective a job.  Over time, spray foam will pay for itself in lower energy bills and a more comfortable and hospitable space to live and work in.

Other than walls, spray foam can be applied to basement ceilings for sound attenuation.  Especially if a basement is being used for recreation, entertaining or a theater room, you will appreciate the noise muffling properties of spray foam.  Closed cell spray foam also cures hard and provides additional structural strength to floor joists and underlayment. 

Make sure that your foundation walls are free from cracks or holes that will allow even more wetness to enter the basement before applying spray foam.  You’ll want to ensure that your basement is dry so that you can obtain the maximum amount of enjoyment from your spray foam investment.

 

Cost of Spray Foam Insulation
Insulating Crawl Spaces with Spray Foam

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