WebRecommended Prodex type: Any Prodex Total type. Drape insulation over the rafters or trusses. Make sure the insulation can drop a few inches between each rafter. Use reflective tape to bind the seams. If you want to avoid seam taping, choose 10M or Fast Action, which have an incorporated adhesive line on one side of the roll. WebJan 18, 2024 · Also, you would be creating what's known as a hot roof. This can be damaging to the roof sheathing and shingles. Most truss bottom cords are 2x4. This is normal, and the insulation usually reaches much higher than the tops of the ceiling joists. The usual routine is to raise the floor with additional framing to allow for more insulation.
Roof Insulation Upgrades on the Sunshine Coast
WebI have an unvented cathedral ceiling I’m insulating. We have 1.5” polyiso on top of the decking and we’re planning on installing rockwool batts in the joists bays. ... The most important aspect of this is that the bats are relatively snug between the roof rafters, so there is not a gap there that allows conditioned air to make it up to ... WebApr 13, 2024 · John Spier, a builder on Block Island, R.I., replies: One solution is to use a steel beam or flitch plate to support the longer span, but I would be inclined to solve this problem by using a wood beam and hiding it up inside the roof structure. Instead of making bird’s-mouth cuts and setting the rafters on top of the carrying beam, I make ... philipp christoforidis
How to Insulate your Roof Fuel Poverty - YouTube
WebThe Finish Ceiling Option. If you want to keep your exposed roof trusses visible, then the easiest way to add some insulation is to add it to the exterior side of the finished ceiling. By keeping the insulation on the outside, it hides it from viewers while still keeping the insulation trapped inside. To get this type of insulation started, you ... WebNov 18, 2024 · Insulating between rafters will do no good, because the attic should be ventilated, and the rafter insulation would be between two unheated spaces. You can add insulation to the floor the more the … WebMar 13, 2011 · Insulating between rafters will do no good, because the attic should be ventilated, and the rafter insulation would be between two unheated spaces. You can … philipp christoph mayer