Nettet18. jan. 2024 · Regardless, I am installing fiberglass insulation batts to go in my (sadly) 2x4 ceiling joist bays. The underside (ceiling side) will be faced, and once all the batts are in, I plan to cover some portions with OSB to make attic access/storage easier. Nettet1. jul. 2012 · Kjl3694. We are finishing our attic, making it a living space. The rafters are 2x4's, 24 on center. In order to get a high enough R value and have ventilation space behind the insulation we need to furr out the rafters. We are planning on using 2x4's to get to an R20. We were advised to attatch them with construction adhesive and screws.
How to insulate over rafters. Over boarding insulation. Cut and fit …
Nettet7. feb. 2011 · The 2x4 rafters may be the full 2"x4" and stronger than today's 2x4s. I'm assuming the roof sheathing is boards, not plywood. What is above that, ... What puzzles me is the wet area dried right up after removing the insulation so I thought it was a condensation issue. The insulation under there was worthless. Nettet29. okt. 2013 · I thought the rafters were 2x6's but they are 2x4's. Anyhow they currently have batts of fiberglass between them which is in co Register Login. Unanswered Active ... When i thought they were 2x6 rafters i was contemplating pulling the insulation batts and putting in 1.5 to 2 inches of closed cell spray foam then shoving the batts ... consultants for jobs in dubai
Beginner Rafter Layout Speed Square Common …
Nettet17. jan. 2024 · 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 … Nettet24. jan. 2024 · After a bit more destruction and dust it is time to look at how we increased the rafter depth in preparation for the insulation.Almost there with the old foo... Nettet18. mai 2024 · (That's how much room you have between the 2x4 rafters.) The solutions involve either: (a) adding more framing depth on the interior of the rafters to install R-49 insulation, or (b) adding enough rigid foam on the exterior side of the roof sheathing to bring the assembly up to R-49. edwalton new builds