Insulation For 2x10 Rafters

If the plastic sheeting is in pieces overlap the pieces.

Insulation for 2x10 rafters.

Apply insulation between rafters when finishing an attic into a heated room or when building a cathedral ceiling in the home. X 48 in 8 pieces 63 33 sq. Insulation radiant and vapor barriers r38 with 2x10 rafters hey guys new to the forum. The rafters in cathedral ceilings are usually made of 2x10 ft.

For rolled insulation place it between roof rafters. Thermafiber residential mineral wool insulation commercial grade at home thermafiber residential mineral wool blankets are ideal for insulating walls floor ceilings and attic spaces in homes. How to install rafter insulation. And owens corning ecotouch high density insulation products are designed specifically for these rafters.

Insulation is designed to eliminate r value loss caused by compressing standard r 30 products in 2x10 cathedral ceiling construction. Insulating 2x4 attic ceiling rafters help needed. Furring out existing 2x6 rafters. 8 thick r 30c ecotouch thermal batt insulation prevents moisture damage and helps assure long roof life by providing 1 of ventilation air space between the insulation and roof deck.

R30c and r38c are available in both kraft faced and unfaced. Make sure it is flush against the wood as even a 1 inch gap can cause a 20 percent heating loss. Barge rafters and lookouts. Place the plastic sheeting on top of the rolled insulation.

These products provide a high r value inch excellent sound attenuation characteristics and outstanding fire performance. Garages built without attics are. 10 01 2010 08 12 am. R 30c and r 38c are available in both kraft faced and unfaced.

A typical 2x4 wall will hold up to r15 if you try to cram r19 in you compress the insulation and i believe actually get less insulative value than you would have with a lower rated batt of insulation. We are kicking off an attic conversion and i need to insulate to r38 on the 2x10 rafters with a 2 inch air.