Questions and Answers for Knauf Insulation R-19 EcoBatt Unfaced Fiberglass Insulation Batt 24 in. x 96 in. x 6-1/4 in. (8-Bags)

A:  You may face staple the insulation but the best practice is to check with your local building codes and also check with your drywall contractor. Drywall contractors generally request inset stapling.

A:  Total weight is approximately 300 pounds.

A:  Sorry Tammy... It may not be "by nature", but animals adapt... I have an attic loaded with rat urine and feces covered fiberglas insulation and a nest made from torn insulation fibers... Clean out attic floors to the walls & steel wool ALL openings...

A:  Thank you for your question, fiberglass is not a natural habitat for rodents.

A:  You will reduce the R Value when you compress insulation. For your value, we would recommend an R13 or R15 for 2X4 wall application.

A:  This depends on what is already there. If this has poly already on the ground, then you cannot install kraft paper, as you are creating a double vapor barrier, and you may be creating condensation in this area. If you have poly, you may slit the kraft paper and that will alleviate this situation. If there is nothing on the ground, then you may install the kraft paper but the kraft paper should go to the warm side of the home.

A:  Hello Chris. Thank you for shopping the Home Depot. According to the Product description, there are 11 batts in each bag. Rick_HD_ OC

A:  When you compress insulation in a wall cavity, you lose R value. In this case, the stated R value is 21 but when you compress it into a 2X4 wall cavity the R value reduces to approximately an R15. R15 is available at the Home Store stores or you may purchase on homedepot.com, you may also use R13 in a 2X4 wall cavity. NAIMA provides compressed R Value information, please visit: https://insulationinstitute.org/wp-content/uploads/2016/08/Compressed_R_values.pdf

A:  Knauf Insulation does not have asbestos in our fiberglass insulation products. We are also do not contain formaldehyde in our products. Knauf is GreenGuard Certified. The status of a GREENGUARD Certification means products have been tested and proven to meet some of the world’s most rigorous chemical emissions standards. Knauf was the first building material manufacturer to claim Red List Free. You may few our information on DECLARE at the following address: https://living-future.org/declare/?manufacturer=knauf-insulation

A:  You can use R13 kraft and an R13 unfaced, you cannot install double vapor barrier, meaning two batts with kraft facing. You could encounter condensation in the walls, if you do this. Also, you would be compacting the double layers of R13. Each batt is 3 1/2" thick and the 2X6 cavity is 5 1/2" so you will not achieve a full R26. R19 and R21 are specifically manufactured for a 2X6 application and Home Depot should carry the R19 and/or R21.

A:  When you compress insulation you do lose R value, in this case the R Value will be R29 instead of an R30.