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Insulation

Insulation
by: clayton posted: Saturday - February 17, 2018
Hello, 

i wanted to  put a cover on opening of 33" x 23" on my 
unused fireplace as it has draft. I noticed the flue 
even is close has a gap so that might where the draft 
came from.

I am thinking to use this but i am unusre if its 
environmentally friendly?

https://www.lowes.ca/foam-board-insulation/dow-
cladmate-4-ft-x-8-ft-extruded-polystyrene-
insulation_10291799.htmlThanks


Should i just use a plywood and paint with anti-
mold+mildew interior paint or use a pressure treated 
plywood?

I will not use this fireplace anymore.

Thanks
Clayton

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