21
ROXUL
®
Insulation Products For Residential Thermal Applications
Better: R-15
2 x 4 Studs + CB R-15
1
Foundation Wall
2
2 x 4 Studs
3
ROXUL COMFORTBATT
®
(R15)
4
Vapor Control Layer
*
Best: R-21
2 x 4 Studs + CB R-15 + CB IS R-6
1
Foundation Wall
2
ROXUL COMFORTBOARD
™
IS (R6)
3
2 x 4 Studs
4
ROXUL COMFORTBATT
®
(R15)
5
Vapor Control Layer
*
Non-vented crawl spaces.
*Check with your state/municipal building code for approved vapor barrier/retarder information.
4
5
3
4
2
2
3
1
1
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