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Question:

how much of a difference would insulation in attic between rafters make?

We don't have any ceiling insulation in our atticWe just have it on the floor joyce (sp?)How much of a diffwould this make?

Answer:

P 128 mgV V P/(mg) 128/(1619.806) 0.0811 m/sec
128W 128J/sec(161 x g) 1,577.8N(128/1,577.8) 0.081m/sec.
please understand that most of these answers are wrong! if you have insulation between the joists already that is all you need, unless you are living in the attic.insulation simply stops heat from rising.if you have insulation in the floor joists you would be wasting your money.your money would be better spent increasing the insulation between the joists, rather than the raftersthis would merely prevent any heat in your attic escaping through the roof, which is pointless as the insulation in the floor joists should stop heat rising past attic floor level anyway.i hope this helps!

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