Q:I have a vaulted ceiling in which I would like to install 3 layers of 2" Poly iso and then to fill the cavity use your unfaced R-21. No air space. Will this work? Thanks
by|Sep 2, 2024
1 Answer
Answer This Question
A: Many assemblies require ventilation below the roof deck. While insulation materials can often be used in conjunction and contact with differing insulations, it is paramount to check with a local code official or inspector to ensure that everything is meeting your local requirements.
by|Sep 11, 2024
1 found this answer helpful
Q:How many square feet in a bundle?
by|Aug 19, 2024
1 Answer
Answer This Question
A: Each bag contains 48.96 sq. ft.
by|Sep 11, 2024
2 found this answer helpful
Q:Can this 3.5 inch insulation be installed in a 2x2 area verses a 2x4 area?
by|Aug 10, 2024
1 Answer
Answer This Question
A: If you are installing drywall over the studs, this will not work. The insulation will push out the drywall. You may want to install a foam board.
by|Sep 11, 2024
1 found this answer helpful
Q:It’s good for the noise
by|Aug 3, 2024
1 Answer
Answer This Question
A: Thank you for your purchase of Knauf Insulation.
by|Sep 11, 2024
1 found this answer helpful
Q:can this be installed in the crawl space ?
by|Jul 29, 2024
1 Answer
Answer This Question
A: You may install in the crawl space. Make sure you do not have a double vapor barrier, or you could create condensation in this area. If you have plastic already on the floor, you will want to install an unfaced insulation under the floor. If you do not have plastic on the floor, install the kraft towards the warm side of the floor and use wire supports to keep the insulation in the floor.
by|Jul 29, 2024
Q:lowered ceiling to 8' and installed insulation. old house did not have insulation in attic can i just lay insulation across 2x4s in attic? House has no insulation in attic different size spaces between 2x4
by|Jul 14, 2024
1 Answer
Answer This Question
A: You may want to spray blowing wool in the attic. Your local Home Depot has Knauf EcoFill Blown-in Insulation and a blow wool machine in tool rental. If you purchase 10 bags of Blown In insulation, you will receive the blow wool machine rental free for the day. Please check with your tool rental department.
by|Jul 15, 2024
Q:How many in a pallet?
by|Jun 28, 2024
1 Answer
Answer This Question
A: R15 15" rolls comes 27 rolls to a pallet.
by|Jul 18, 2024
Q:Can I put faced r30 over top old blown in insulation without a vapor barrier in my attic on the floor?
by|Jun 11, 2024
1 Answer
Answer This Question
A: You may install unfaced insulation over exiting insulation. Our recommendation would be to run it periductular to the existing insulation.