It varies with the thickness of the insulation Generally, about R-3 per inch. 3 1/2" for a 2x4 stud cavity is R-11. 5 1/2" for a 2x6 stud cavity is R-19. But if there is any airflow it greatly

Insulation R Value Chart Feb 06, 2013 Which Rigid Insulation Should I Choose? - Fine Homebuilding May 01, 2009 What is the r value of 6 inch unfaced fiberglass It varies with the thickness of the insulation Generally, about R-3 per inch. 3 1/2" for a 2x4 stud cavity is R-11. 5 1/2" for a 2x6 stud cavity is R-19. But if there is any airflow it greatly

Polyisocyanurate Insulation Manufacturers Association (PIMA)

Material Weights 6 19.2 31.7 8 28.6 50.8 10 40.5 74.6 Material Composition Roofing Felt, 3 ply 1.5psf Felt, 5 ply 2.5psf Rigid Insulation Temlock, 1" thick 1.2psf Cord, 1" thick 0.7psf Gold Bond, 1" thick 1.5psf Styrofoam, 1" thick 0.2psf Foam Glass, 1" thick 0.8psf Rigid Fiberglass, 1" thick … R Value Calculator | ROCKWOOL

Celotex PIR Insulation 2400x1200 (12mm-150mm) -£40 delivery on orders under £250. £24.00 (£0.00/Unit) Unit price: £0.00 per Unit. Celotex insulation GA4050 Kingspan TP10 Recticel GP 2400x1200 50mm 11 sheets. £246.52. XPS Insulation Boards Floor Underlay Panels for Electric Underfloor Heating .

Material Weights 6 19.2 31.7 8 28.6 50.8 10 40.5 74.6 Material Composition Roofing Felt, 3 ply 1.5psf Felt, 5 ply 2.5psf Rigid Insulation Temlock, 1" thick 1.2psf Cord, 1" thick 0.7psf Gold Bond, 1" thick 1.5psf Styrofoam, 1" thick 0.2psf Foam Glass, 1" thick 0.8psf Rigid Fiberglass, 1" thick … R Value Calculator | ROCKWOOL ROCKWOOL . 8024 Esquesing Line Milton, Ontario Canada L9T 6W3 . Tel: 1-800-265-6878 Everything You Need to Know About Insulation's R-Value I am remolding a 1950’s house cottage in southern California and have 2 x 6 rafters 16 on center. My bays are now 14 inches on center due to Engineer required sister-ing a 2×6 strengthening structure to the existing frame for a cathedral ceiling. My dilemma is that I do not have enough depth for R19 6 …