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Old 09-27-2009, 10:40 AM   #1
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Metal roofing & insulation


Check with your metal supplier they seem to know what is best and for what application. I have the same issue and am going to strap the roof with 1x4's just because I don't want to sink a screw into one of the gaps between the old slat boards.

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Old 09-28-2009, 07:48 AM   #2
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I now have another issue. There is no insulation in the roof or very little. What am thinking is to strap with 2x4's and to fill the gap between strapping with 1 1/2" styrospan,the rigid styrofoam panels. My question is do I need to use tucktape on all of my joints.

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Old 09-28-2009, 11:20 AM   #3
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Quote:
Originally Posted by bronco2 View Post
I now have another issue. There is no insulation in the roof or very little. What am thinking is to strap with 2x4's and to fill the gap between strapping with 1 1/2" styrospan,the rigid styrofoam panels. My question is do I need to use tucktape on all of my joints.
Unless your ceilings are cathedral, thsi will not help your building envelope needs at all.
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Old 09-28-2009, 10:28 PM   #4
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Metal roofing & insulation


little or no insulation in Canada?

with the metal id be concerned with moisture condensing on
the metal panel underneath
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Old 10-01-2009, 08:51 AM   #5
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Metal roofing & insulation


My ceilings are cathedral to a point. From the end of the rafters up 12' is cathedral, then flat for the remaining 6' of the rafter. There is spray in insulation on top of the flat part of ceiling with no inside vapor barrier. I was just wandering if I ran the styrosan up the 12' if this would help or should I run it all the way to the peak. And the condensation issue should be covered with the nova seal 2 underlay the manufacturer recommended. Please help.
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Old 10-01-2009, 08:56 AM   #6
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Morning Scuba, You got any ideas for me, or are we waiting for the others to wake up.
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Old 10-01-2009, 09:11 AM   #7
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I moved your posts to a seperate thread for less confusion
While I have done a few roofs I have never done a metal roof
So I have no input on this one - sorry
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Old 10-02-2009, 07:55 AM   #8
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Alright then. I have another issue now. Knob and Tube wiring, I will take this topic to the appropriate electrical section though.
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Old 10-02-2009, 08:18 PM   #9
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It all depends on your construction details. If youre insulating the attic space to hold heat and humidity in the attic, then this will help your plight. If you're looking to insulate the living space, then you need to insulate on top of the ceiling.

What type of sprayed insulation do you have in the vaulted ceilings?

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