Q&A Forums Home » Spray Foam Questions & Answers » Ask Mason Knowles - SPF Consultant Login User Register Search
Search Forums: 
 

Q&A Forums


[ Post New Topic  |  Post Reply ]
Author Comments
sprayfoamcustomer

Q&A Forums Registered User
Posted: 2/16/2009 7:16 PM EST

Reply

spray foam not curing after few months
I had the attic ceiling (the underside of my roof) in my home sprayed with foam in November by a contractor. We had to vacate our home for 2 days after the job was completed due to very strong fumes. I still have some fumes in the attic area. If I put large fans in my attic area do you think this will cure the foam? The foam is probably 6" to 8" thick. Thanks.

foammaker  

Q&A Forums Registered User
Posted: 2/16/2009 11:23 PM EST

Reply

RE: spray foam not curing after few months
Most spray foams cure within minutes not months. Why do you say it is not curing? What type of foam was installed? Is the foam soft or hard? Perhaps it is an open cell foam which is usually soft and similair to merengue. Closed cell foam is hard, typically denser than styrofoam board.

The closed cell foams typically don't off gas, some of the open cell foams do? Some more info might help with your concerns.

sprayfoamcustomer

Q&A Forums Registered User
Posted: 2/17/2009 5:19 AM EST

Reply

RE: spray foam not curing after few months
It is open cell, real fluffy/soft...I think its called 1/2 pound. I'm assuming that the reason I still smell some fumes in my attic is because the foam never totally dried after application. Thanks.

bayouboy  

Q&A Forums Registered User
Posted: 2/17/2009 7:07 AM EST

Reply

RE: spray foam not curing after few months
Something else may be going on. What city do you live in?


Steve

Mason  

Moderator
Posted: 2/17/2009 11:09 AM EST

Reply

RE: spray foam not curing after few months
It sounds like a classic case of B rich foam. If it is very soft, has lots of deformed cells and smells, it is most likely off ratio and is lacking the A side of the component. You need to remove the foam and respray.

impaidbyu

Q&A Forums Registered User
Posted: 2/17/2009 5:04 PM EST

Reply

RE: spray foam not curing after few months
Mason hit it right on the head. Now how does one fix this issue? respray an inch or so of good foam?

Mason  

Moderator
Posted: 2/18/2009 9:33 AM EST

Reply

RE: spray foam not curing after few months
I have found that if you leave the off ratio foam it will continue to emit odors for years to come. So, you need to remove the foam. (Clean the substrate well to get off all the gummy stuff). Ask your suppliers recommendation and follow them on clean up and respraying the foam.

Jump To Forum:
Jump To Board:

Q&A Forums Home
Contact The Q&A Forums Editor

Ads by SprayFoam.com