Originally Posted By: mcyr This post was automatically imported from our archived forum.
Spray-on insulation would not be any different than spraying fireproofing in an area.
Therefore, whoever is doing the mess as one would call it, should protect all areas that could be subjected to contamination, meaning effort by someone else to clean up and make their own work acceptable to meet their codes.
The insulation Contractor should make provisions to protect items of other trades involved in executing his work.
Originally Posted By: jonofrey This post was automatically imported from our archived forum.
Yes, the attic space is vented normally. The wet blown is only used on exterior walls, under attic flooring (where batts normally go) and some sloped ceilings.
Loose blown in is installed in the ceiling spaces like usual.
Originally Posted By: tjohn This post was automatically imported from our archived forum.
John
They do the same thing here and also use a foam type insulation. The electrical contractor cleans out the boxes before use. Does this always happen; I think you know the answer to that. This is the the best way to insulate walls and floors that I have ever seen. No gaps for air infiltration at all, but plumbers and electricians can wreck havoc after it is installed.
Originally Posted By: Greg Fretwell This post was automatically imported from our archived forum.
If you folks are in the south I would call blown in cellulose attic insulation a defect unless there is a vapor barrier OVER it.
The rules are different if you are in a warm moist climate and the A/C is what you are insulating for.
Think about it ...
Where is the warm moist air?
Where is the cold air?
Where is the vapor barrier?
The water condenses out in the cellulose, rots it and turns it to grey muck with an R of about 1 that compromises any fiberglass you had under it.
Want some?
I have an attic full.
I would not be as concerned if the insulation was imperviable to water but the vapor barrier issue is still sound. If I could actually reinsulate my attic it would be with foil backed fiberglass but that is not likely in a 3:12 attic
Originally Posted By: pdickerson This post was automatically imported from our archived forum.
Kenton,
Check again. There are straps from the cripples to the double top plate. They blend in with the insulation. It looks like the headers are supported correctly.
Originally Posted By: kshepard This post was automatically imported from our archived forum.
You’re right Paul, I mistook the straps for paint. Thank god I didn’t do that back when I was in the trades. Could have put those straps on a lot faster that way though.
