DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (
-   Insulation (
-   -   Ceiling insulation (

parkguy9 03-06-2013 05:25 PM

Ceiling insulation
For R30, 16"W x 48"L 11 batts, what does that 11 batts mean? How many feet comes in one bag?

Gary in WA 03-06-2013 06:40 PM

Home depot R-30 shows 58.67 total square foot coverage divided by the width of batt = 1.33 = 44.11 divided by each one is 4' long = 11 pieces.

Keep in mind, R-30 is one of the lowest density batts out there at 0.57# per cubic foot- compress it to R-26 (medium density) or further still to R-15 (high density, pp.41;, compare Roxul at >2lbs/ft3;

Air seal the attic first, and use a housewrap over the low density batts to prevent wind-washing degrading you thermal barrier.


All times are GMT -5. The time now is 07:51 AM.

User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

Search Engine Friendly URLs by vBSEO 3.6.1