Jerry Needham
  • Geneva, IL
  • United States
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Closed cell on roof deck to prevent mold.

Started this discussion. Last reply by Scott Partlo yesterday. 3 Replies

I am working with an insulation company who has already applied 2" of closed cell foam over the deck of a roof deck that has been remediated for mold twice. It was thought by spraying the foam, there…Continue

 

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Scott Partlo replied to Jerry Needham's discussion Closed cell on roof deck to prevent mold.
"You say that 2" of closed cell foam is applied OVER the roof deck.  Where exactly was the foam applied? Is this a flat/low slope roof?  If its to the underside of the roof deck?  You mention ventilation.  How about the…"
yesterday
Donald Hester replied to Jerry Needham's discussion Closed cell on roof deck to prevent mold.
"For the roof shingle issue that is an unfortunate issue with many home inspectors that have been given improper information. Shingle color actually has a greater effect than non-ventilation. There will be some shingle degradation but it will be…"
Thursday
Sean Lintow Sr replied to Jerry Needham's discussion Closed cell on roof deck to prevent mold.
"Way to much information is missing to even say something definitive but I can say that yes it can shorten the life of the roof... by about two weeks (shingles) http://thehtrc.com/2011/what-is-a-hot-roof  As for mold, the iso or is it exothermic…"
Apr 15
Jerry Needham posted a discussion

Closed cell on roof deck to prevent mold.

I am working with an insulation company who has already applied 2" of closed cell foam over the deck of a roof deck that has been remediated for mold twice. It was thought by spraying the foam, there would be no chance of the mold coming back.  This is a million dollar home in the Chicagoland area and homeowner is trying to sell the home but a private home inspector says the foam will shorten the life of the roof and he has scared off perspective buyers with his talk.  I have told the…See More
Apr 14
William H Nickerson commented on Jerry Needham's blog post Spray foam on attic deck to stop mold
"In Chicago you have the headquarters for Passive House US. You should reach out to them and ask if they know of anyone willing to run a WUFI software case file on your conditions. This is what that software was designed for. It could be a win for…"
Apr 13
Brad Cook commented on Jerry Needham's blog post Spray foam on attic deck to stop mold
"molds needs oxygen, moisture, food and heat (above roughly 40 degF). The SPF will essentially remove O2. If the SPF was applied to the interior of the roof deck, the 2" would be a vapor barrier. If it was applied to the exterior, you could have…"
Apr 12
Jerry Needham posted a blog post

Spray foam on attic deck to stop mold

I am working with an insulation company who has already applied 2" of closed cell foam over the deck of a roof deck that has been remediated for mold twice. It was thought by spraying the foam, there would be no chance of the mold coming back.  This is a million dollar home in the Chicagoland area and homeowner is trying to sell the home but a private home inspector says the foam will shorten the life of the roof and he has scared off perspective buyers with his talk.  I have told the…See More
Apr 7

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Company
Pro Energy Consultants
Professional Certification
BPI BA, HERS
Website URL
http://www.geneva.proenergyconsultants.com
Twitter ID
proenergyfv

Jerry Needham's Blog

Spray foam on attic deck to stop mold

Posted on April 7, 2018 at 8:57pm 2 Comments

I am working with an insulation company who has already applied 2" of closed cell foam over the deck of a roof deck that has been remediated for mold twice. It was thought by spraying the foam, there would be no chance of the mold coming back.  This is a million dollar home in the Chicagoland area and homeowner is trying to sell the home but a private home inspector says the foam will shorten the life of the roof and he has scared off perspective buyers with his talk.  I have told the…

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At 11:37am on January 1, 2014, Diane Chojnowski said…

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