.
Any Architects, Or Residential Contractors?
I expect my situation is one for a very knowledgable person regarding household airflow needs.
I'd like to insulate on top of our already finished third floor ceiling.
I have already gotten free styrofoam panels. I brought home from work over 200 "dropped ceiling" panels(2'X4') that I want to use for the insulation.
They are a full 1" thick and I will need to cut them to width, but hey, they were free!
The trusses are the older, actual 2X4 size.
The ceiling is made of the older lathe & horsehair mortar with the mortar squeezing and protruding upward into the 2X4's air space.
Can I put 1" thick solid stryrofoam panels on top of the lathe and mortar in that 4" high air space in-between the roof trusses of my finished attic ceiling and the solid 1X6 wood roof planks on the (top/outside) of the trusses?
My concern is- how much air space is required in these truss areas for heat and moisture movement?
There are a couple smaller vents on the roof below the crown line.
Can I place one, (or maybe two) styrofoam panels stacked in these air spaces for insulation purposes?
I'm thinking I would duct-tape the butt joints.
So I just need to know the limitations involved, or if its a bad idea.
I really need a professional, knowledgable answer.
Thanks guys, I appreciate your help.
- Jim
Any Architects, Or Residential Contractors?
I expect my situation is one for a very knowledgable person regarding household airflow needs.
I'd like to insulate on top of our already finished third floor ceiling.
I have already gotten free styrofoam panels. I brought home from work over 200 "dropped ceiling" panels(2'X4') that I want to use for the insulation.
They are a full 1" thick and I will need to cut them to width, but hey, they were free!
The trusses are the older, actual 2X4 size.
The ceiling is made of the older lathe & horsehair mortar with the mortar squeezing and protruding upward into the 2X4's air space.
Can I put 1" thick solid stryrofoam panels on top of the lathe and mortar in that 4" high air space in-between the roof trusses of my finished attic ceiling and the solid 1X6 wood roof planks on the (top/outside) of the trusses?
My concern is- how much air space is required in these truss areas for heat and moisture movement?
There are a couple smaller vents on the roof below the crown line.
Can I place one, (or maybe two) styrofoam panels stacked in these air spaces for insulation purposes?
I'm thinking I would duct-tape the butt joints.
So I just need to know the limitations involved, or if its a bad idea.
I really need a professional, knowledgable answer.
Thanks guys, I appreciate your help.
- Jim