Foaming a Trench in Midcoast Maine

Foaming a Trench in Midcoast Maine

This picture shows the process of insulating an underground heat run with closed cell spray foam insulation.  On a similar project we sprayed a trench that was 300 feet long.  The degree change from one end of the heat run to the other was under one degree!

Work in Progress

 

 

Finished product

 

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