In finished attic rooms with or without dormer insulate 2a between the studs of knee walls 2b between the studs and rafters of exterior walls and roof 2c and ceilings with cold spaces above.
How to insulate the roof in the philippines houses.
I m preparing to install the roof on our house that we are building and have been proposed double bubble aluminum foil as the best solution.
If 180mm is to be installed then 100mm board might be introduced between the rafters there has to be a minimum 25mm air gap between the insulation and the underside of the tiles or slates with an 80mm board running across the rafters.
I almost hate to ask this question after reading the 65 answers on insulated windows but i m a little bewildered on this one.
2d extend insulation into joist space to reduce air flows.
House construction in the philippines roof project update working hard on our day off we were able to finish the roof but there is a lot of work that still needs to be done.
The roof installers wanted to put the fiberglass insulation over the top of the purlins and then screw down the sheet metal roofing.
With a warm roof the usual process is to split the insulation into two layers.
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This of course would have totally compressed the fiberglass at the purlins reducing its insulative value.
The metal roof is screwed to steel roof supports called purlins.
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Cover the roof with photo voltaic pv panels with an air gap between the panels and the roof.
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A good roof pitch would be atleast 30 degrees although traditional vernacular samples may go as high as 45 degrees which i think is better.
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