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 Building an ATTIC, I wanted to transform my roof

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SUSceo684
post Jan 27 2021, 02:09 PM

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Monier Radenshield insulation+ventilation fan with high cfm (2*10" or 1x12") will help to make it usable.

Yes plan is needed as this involve layout modification. Also if building catch firr with unapproved mod they can n will deny ur claims.

Enough structural support for the load involved. Architect required.
SUSceo684
post Jan 31 2021, 04:38 PM

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QUOTE(lyt25_1234 @ Jan 29 2021, 09:05 AM)
My roof got the heatshield and it's metal roof. And yes, i have two turbines installed too.
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turbine is passive ventilation.. it doesn't move much air despite the size.tongue.gif
1 unit of KDK 12" ventilation fan already move 727 CFM actively. Meaning in ten minutes you can change all the air of a 24x50x5 ft attic (6000 cubic feet). It will need input vents from the inside of your house i.e. at the ceiling.

Assuming that you're boarding up or bricking up the sides where next door neighbour walls are held.
SUSceo684
post Jan 31 2021, 11:47 PM

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QUOTE(ongss @ Jan 30 2021, 08:58 PM)
My goodness, I am going to have metal roof too.

My contractor is suggesting one single layer of aluminium insulation. I asked for more and he recommended Sun-foil reflective aluminium bonded with a layer of 25mm FR polyethylene bubble sheet and woven fabric. I am considerng three other options:

(1) the solar-powered turbines. But, have not decided yet.
(2) the solar panel to generates electricity, which can act as an extra layer.
(3) heat reflective paint. But, it may have an issue for the warranty of the metal roof.
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Actually metal roof is cooler than the roof tile (shingles) but you need to pick the correct colour (white or light grey) for it to reflect solar energy well.

I have a master bedroom with a heat problem too - outside painted 80% dark grey wall facing west. Sauna effect is much lessened with the windows open for airflow through the room.
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