Spray Foam Test Results

Spray foam is rapidly gaining market acceptance as the premium insulation system for energy efficiency. The way it expands to fill holes and permanently adheres to all surfaces makes it a very tight insulation system. Its biggest weakness is price, you really can't get foam at the same price as fiberglass or cellulose. Let’s take a look at how it performed on my house.

 

The results of the test are arranged into 3 segments:

  1. Test setup - shows how the test bay was assembled.
  2. Normal Winter - shows the test bay performance against the control bay on a moderately cold winter night with no wind.
  3. Extreme Winter – shows the test bay performance against the control bay on a day that is either extremely cold or has a 20 mph wind. The process used to simulate an extreme winter day is to depressurize the space to 50 Pascals, a pressure 5 to 10 times normal pressure. Depressurization with a blower door is commonly used to locate air leaks in a structure.


Test Set Up

Normal Winter Test


Extreme Winter Test

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