Consider a composite wall surface that has an 8-mm-thick hardwood siding. 40-mm by 130-mm hardwood studs on 0.65-m centers with glass fiber insulation (paper faced, 28 kg/m3) and a 12-mm class of gypsum (vermiculite) wall board.

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What is the heat resistance linked with a wall that is 2.5 m high by 6.5 m large (having 10 studs, each 2.5 m high)?




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