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• <br /> Figure 5 Exposed Wall Rim Joist Area: 344 Sq. Ft. • <br /> R-Value <br /> Interior Air Film .68 <br /> Vapor Barrier 0.00 11 ►� <br /> Insulation /9,vo <br /> . <br /> Wood Member /,BB I tI I 41 <br /> Sheathing . 62 4011/I <br /> Exterior Finish ,4/ ; <br /> Exterior Air Film .17 <br /> Total Assembly R-Value Z 2.82 <br /> Assembly U-Value (1/R) , o¢ <br /> Enter on Page 1 <br /> Notes: 1) Floors over unheated spaces. For floors of heated or mechanically <br /> cooled spaces over unheated spaces, the overall U-Value <br /> for the floor shall not exceed 0.05. For floors over outdoor <br /> air, such as overhangs, the overall U-Value for the floor <br /> shall meet the same requirement as for roofs, U-Value of <br /> 0.04. <br /> 2) Slab-on-grade floors. For slab-on-grade, the insulation <br /> around the perimeter of the exposed floor shall have a <br /> minimum R-Value of 6.4. The insulation must extend downward <br /> from the top of the slab a minimum of 3'6" or downward <br /> to the bottom of the slab then horizontally beneath the <br /> slab for an equivalent distance. <br /> 3) Vapor barriers. The maximum perm rating for the vapor <br /> barrier is 0.1. A minimum of 4 mil polyetheline, or equal, <br /> is required to achieve this. The vapor barrier must be <br /> continuous with all joints overlapped and made over framing <br /> members or blocking. - <br /> 4) For notes on foundation wall see page 6. <br /> 5) For additional assemblies not illustrated use worksheet <br /> on page 8. <br /> 5 <br />