No Insulation In Roof

Consider using high density r 30 batts which are as thick as r 25 batts but fit into 2x10 framing.

No insulation in roof.

Some context before my questions. Is there any advantage to trying to get any insulation in between the 2 8 rafters. Hi sorry for the length below. In a vented roof foam can seal the openings and serve as an air barrier and a vapor retarder in addition to its insulating function.

Should i leave out the soffit vent. For the same reason insulation shouldn t touch the roof s underside. The materials used to insulate under the roof include batts of mineral or glass wool insulation held in place by battens of wood attached to and across the rafters alternatively polystyrene. Foam and the roof assembly.

I have an insulation factor of about 8 10 plus the reflectivity of the white tpo. I have a 1947 home in florida with an almost no slope roof that has no attic and has no ceiling insulation. Foam insulation can play an important role in both vented and un vented roof assemblies. In an un vented roof foam can serve as the air barrier and vapor retarder and prevent moisture.

It s so charming b c the exposed beams inside have never been covered but as you can imagine it s hot. Owens corning ecotouch insulation is soft to the touch easy to cut and install. Covering up the soffit vents with loose fill or batts which can happen if you stuff insulation along the eaves is a huge no no. You can also add rigid foam insulation under the rafters which adds r value and eliminates thermal bridging through wood rafters.

A vent baffle should be installed between the insulation and the roof decking to maintain the ventilation channel. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. The r 13 faced batt insulation is comprised of the r 13 faced batt insulation is comprised of pre cut widths to fit between the studs and joists in your home. Also there is a soffit vent but none at roof peak.