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� ' GUIDELINE TO (R) FACTORS FROM ASHRAE MANUAL <br /> .�' � - OF TYPICALLY USED PRODUCTS <br /> A]R FILMS � SHEATHING � <br /> Interior Air Film (Walls) 0.68 3/4" Hood Subfloor or Sheathing 0.94 <br /> Exterior Air Film (Walls) 0. 17 1/2" Plywood Sheathing 0.62 <br /> Interior Air Film (Vented Ceiling) 0.61 1/2" Particle Board 0.66 <br /> Exterior Air Film (Vented Ceiling) 0.61 Gypsum or Plaster Board 3/8" 0.32 <br /> Interior Air Film (Non Vented) 0.61 Gypsum or Plaster Board 1/2" 0.45 <br /> Exterior Air Film (Non Vented) 0.17 Gypsum or Plaster Board 5/8" 0.56 <br /> Plywood 3/8" � 0.47 <br /> Plyw�od 1/2" 0.62 <br /> BLOWING WOOLS Plywood 3/4" 0.93 <br /> Approx. 3" 9.00 Sheathing, Reg. Density )/2" 1 .32 <br /> Approx. 4 1/2" 13.00 Sheathing, Reg. Density 25/32" 2.06 <br /> Approx. 6 1/4" 19.00 Nail-Base Sheathing 1/2" 1 .14 <br /> Approx. 7 1/4" 24.00 <br /> Approx. 14" 30.00 ROOFS <br /> Approx. 18" 40.00 <br /> All other insulation materials must Built-up Roofs 0.33 <br /> Asbestos-Cement Shingles 0.21 <br /> be verified (R Factor) Asphalt Rol] Roofing 0.13 <br /> . Asphalt Shingles 0.44 <br /> INSULATION <br /> Insulation: 2-2 3/4" Fiberglass . 1.00 SIDING <br /> Insulation: 3 1/2" Fiberglass 11.00 Aluminum Siding 0.61 <br /> Insulation: 6" Fiberglass 19.00 Aluminum with Backer 1 ,g2 <br /> Insulatioh: 3 5/8" Fiberglass 13.00 -A�uminum with Backer & Foiled 2.g6 <br /> Insulation: 9" Fiberglass 30.00 �/2 x 8 Lap Siding (Wood) 0.81 <br /> Insulation: 12" Fiberglass 38.00 7/�6 x 12 Hardboard Siding 0.61 <br /> Insulation: 8" Cellulose 29•�� Asbestos Sidings 1/4 Lapped p.21 <br /> Insulation: 10" Cellulose 37.00 Stucco (Brown and Finish Coat) <br /> Insulation: 12" Cellulose 44.00 ---- <br /> Insulation: 1 1/2" Thermax 12.00 <br /> Insulation: 2" Thermax 16.00 DOORS � <br /> WOODS 1 3/4" Solid Core Door .46 � <br /> ►t/Storm, Wood � .31 <br /> Fir, Pine & Similar Soft Woods w/Storm, Metal .26 <br /> 1 1/2" 1 ,89 Pease Steel Door Insl/N/GL 7.45R .13 <br /> 2 1/2" 3.12 Sliding G1ass Door, Wood .65 <br /> 3 1/2" 4.35 Metal .72 <br /> 5 1/2" 6.87 <br /> CONCRETE BLOCK WINDQWS <br /> 8" Concrete Block (S & G Reg. ) � , �� All Windows � <br /> (Filled with Vermiculite) �,93 (w/Storms 1" to 4" Space) .56 <br /> 12" Concrete Block (S & G Reg.) � ,Zg Removal Double Glazing (RDGj .55 <br /> (Filled with Vermiculite) 3,15 Thermo or Welded 3/16" Air Space .69 <br /> 8" Light Weight 2,�g 1/4" Air Space .65 <br /> (Filled with Vermiculite) 5.03 1/2" Air Space .58 • <br /> ]2" Light Weight 2,48 (Other windows specifically tested <br /> (Filled with Vermiculite) 5,g2 can use better ratings) <br /> Page S <br />