Old Building Details That Work
Thin foil can block massive amounts of heat transfer, but it needs a massive temperature difference to be effective. So, insulation sort of makes radiant barriers irrelevant.
Houses cannot expand and contract with changes in pressure like balloons can. Instead, they need paths for air to balance the pressure
Siding is supposed to shed water away from walls; so what's the deal with siding that absorbs water?
A snowball effect of physics vs. physical structures: water carries salt to the surface of masonry, which crystallizes and can blow apart its masonry host.
A big problem, for roofs in cold climates, but what causes it and how can you fix it?