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��� <br />��� <br />q H <br />� H U� <br />F?�H <br />FG C] <br />r3 'A <br />�-0 H 'i1 <br />U� H <br />�U� <br />H t7 <br />OH <br />��� <br />(�]Y �5] <br />� � ! <br />� .� <br />� <br />r� <br />C'� G' q� <br />�L�U � <br />HC% <br />H O U� <br />s.� <br />Novem6er 4, 1986 <br />CRV OP <br />�� <br />__----- eve rett <br />/ Standard Brands Paint Co. <br />4300 47est 190th Street ao=_uc::c�,sc_a>:-�.rer.r <br />Torrance, CA 90509-2956 r.c�ceoa�s-aeer <br />EVERER. vlaSH�'+GiOu <br />ATTEtITIOH: Richard Yarboxough eexo� <br />The revised energy calculations are aporoved. The proposed method of <br />suspending R-19 batt insulatior. is not approved because: <br />1 <br />2 <br />The solution does not provide insurance against gaps <br />in the insulation or the vapor barrier. <br />No ventilation is provided above the insulation in <br />accordance with Section 3205(c). <br />As I stated durir.g our telephone conversation, we do not a_�ow the instal- <br />lation o£ batt insulation tight to the roof deck (as your c-�.iginal plans <br />described) because several conditions must be perfect in order For that <br />system to be successful. <br />t <br />2 <br />The moisture content of the purlins and zoof sheathing <br />in contact with the insulation must be less than 15�. <br />The vapor barrier can iiave nc gaos, tears or other onenings. <br />y s�' 3. The structural members to which the insulation is fastened <br />�, .�0� must also be covered with a vapor barrier so a= not to <br />I a11ow a"shor.t circuit" for vanor to bypass the barrier on <br />� the insulation. <br />I +s <br />Condition : is extremel:� difficult to achieve from October th+-ough Aoril <br />in this climate. Condition 2 is not only very dif£icult to accomplish, <br />it is also diffi.cult to inspect. Condition 3 can be satisfied with a <br />cuating of one of the vapor reta=der paints, but again is difficult to <br />inspect. <br />94EE*5 'A�'�Sit 6�Oin:. 9W�DiNG PU9��C t19l1tiE5 CONSiRUQ��GN Ef:Gi:�EEA�•:� iP_cqC <br />��9.Z�p� o?.cql. .EniCLS ._�i.._ 5[Ft�iCES 25J-Bfi2� �qSP[CiiC`� �:i�3F�� ,`- -. <br />� ._., - :5=.d3, wai.-S�.n�,o,.,�nq :sien�� <br />