Ask Experts Questions for FREE Help !
Ask
    masond's Avatar
    masond Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 20, 2009, 10:53 AM
    Insulating cathedral ceiling
    Ihave cathedral ceilings and need to insulate them. How much air space do I need to leave so I won't rot the plywood for my roof

    Kathy
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Apr 20, 2009, 03:39 PM

    Are you saying the underside of the roof that shows in your home is plywood?
    21boat's Avatar
    21boat Posts: 2,441, Reputation: 212
    Ultra Member
    		  
    #3

    Apr 20, 2009, 08:50 PM

    The ply is the sheeting for the shingles I assume. My question is what's the depth/cavity of the ceiling joist here?

    Also what's your GEO for recommended (R) value.

    Spray foam is usually the best on cathedral ceilings but 3 times higher then fiberglass. Please give us very detailed information so we can help better.

    Will thefe be a flat at the apex/peak of the finish ceiling or that going to be built? This could change things here.
    logan176's Avatar
    logan176 Posts: 341, Reputation: 6
    Full Member
    		  
    #4

    Apr 24, 2009, 09:16 PM

    Spray foam all the way. I put it in my house and I saved 30% on my heating bills from the previous year... and I have the bills to prove it!
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

What do I shop for to get ceiling light on cathedral ceiling straight down? [ 11 Answers ]

I have a cathedral ceiling in a modualr home. Cheap ceiling fixtures I want to replace. Primarily, I dislike how the fixture is angled onto the cathedral ceiling. Are there fixtures that mount with the base onto the cathedral ceiling angle but then the part that hold the lightbulb can pivot so that...

How to insulate a cathedral ceiling in a house [ 10 Answers ]

Please tell me how to insulate a catherdral ceiling

Cathedral ceiling lighting [ 2 Answers ]

What is the best way to illuminate a room with 20' ceilings?

Cathedral ceiling insulation [ 4 Answers ]

Hi, I'm building a cabin in the woods up here in Alaska. This is my first time building something out of wood besides a tree fort. I'm a welder. Anyway my cabin dimension is 16' wide by 24' long with 10' walls. The roof pitch is 12x12 (heavy snow load). I built the roof with the idea of...

Move electrical box in cathedral ceiling [ 1 Answers ]

My electrical box in my cathedral ceiling is closer to the wall as I have track lighting(6 feet).I would like to move the box to the middle of my room so I can hang a ceiling fan above my bed.Is this difficult?

View more questions Search