Insulation advice

-
N

nothingbutdarts

Well-Known Member
Joined
Mar 16, 2007
Messages
3,960
Reaction score
938
Location
Bailey, Co.
Looking for advice from the experts. I have a deck that I put a roof on (plywood, tarpaper and shingles) and enclosed, what would be the best way to insulate the celing. I have 2X6 trusses. I'm not sure if I will cover the insulation on the inside or just leave it exposed (It's just a storage area and I keep dogs in there with a wall heater in the winter)

Thank You for the help!!!
 
Sounds like you have open rafters, not trusses? if you want the highest R-value, go with polyisopropolene, or, not quite as good, use extruded polystyrene. Both come in 4x8 sheets in various thicknesses. Cut it to fit between the rafters and trap it there with lath or bullnose.
 
bighammer said:
Sounds like you have open rafters, not trusses? if you want the highest R-value, go with polyisopropolene, or, not quite as good, use extruded polystyrene. Both come in 4x8 sheets in various thicknesses. Cut it to fit between the rafters and trap it there with lath or bullnose.
Click to expand...

Yes, open rafters. So if I would use the polyiso, do I need any kind of vapor barrier between it and the roof? And Thank You for the advice!!
 
Find out what the person dislikes about him/her self and make fun of it....


.... Oh, you said insulation advice, not insultation advice.... Nevermind.....
 
THe polyiso can be purchased with foil facing on one or both sides so it needs no other vapor barrier.
 
Shouldn't he vent the insulation, similar to this?

images
 
Do it just like the pic in Frankie's post. I would use a 6 inch batt insulation and if you don't really want to cover it right now, use a heavy plastic vapour barrier.

Jack
 
Those insulation baffles are designed to prevent insulation bats from blocking the airflow that would be coming into the attic through the soffits. If there are no soffit vents and no attic space, they're not doing anything.
 
Just a though.

When we lived in Jersey, and closed in the attic space, the inspector made us put similar baffles in to reduce the chances of rotting the plywood on the roof, by trapping moisture between the roof and the bats.

Worked great, too. Cheap insurance.
 
You must log in or register to reply here.
-

Back
Top