Document aJbeKx474n2xMJMxaZzregmY

(T a b le 9. Coefficients of T ransmission U) of Concrete Construction Floors and Ceiling s" Coefficients are expressed in B tu per hour per square foot per degree Fahrenheit difference in tem perature between the a ir on the tw o sides, and ore based on s till a ir (no w in d ) conditions on both sides. Heating Ventilating Air Conditioning Guide 1939 110 Chapter 5. Heat Transmission Coefficients and Tables *1 VW&JSs (Ta b l e 10. C o effic ien ts of T ransmission U ) of C oncrete F loors on G round w it h V arious T ypes of F in is h F looring". Coefficients are expressed in B tu per Hour per square fo o l per degree Fahrenheit difference in temperature between the ground and the a ir over the door. and are based on s till a ir (no w in d ) conditions. TYPE OF FINISH FLOORING o\ o 63 _ 1 |a BSfg & 3= No. No Flooring (Concrete Bare) Yellow Pine Flooring6 on Wood Sleepers Resting on Concrete Maple or Oak Flooring* on Yellow Pine Sub-Flooring on Wood Sleepers Resting on Concrete ot, *go 2gb H a K-iu. , Battleship 1 Linoleum Directly od Concrete H-'sk 2eS .< IT t p e a n d T h ic k n e s s o f n s u l a t io n <<OaOO Yf 00 None None* 1 In. R igid In su la tio n * 1 in. R igid Insulation* 2 in. Corkboard* 2 in. Corkboard* ^Computed fro m factors marked by * in Table 2. -^Assumed H6 in. thick. Assumed % in. thick. ^Assumed 1 in. thick. oo *< oo 7 8 9 10 *<*<* nooo OOt-t- -' o 0 .6 6 0.29 0.64 0.27 0 .2 2 ! 0.16 0 .2 1 0.15 . 0 . 1 2 0.099 0 . 1 2 0.096 aot-eu} r} erj o C4C4C4C'* NN odd do* a nonnnnoo dodo 0.14 0.13 0.093 0.090 0.63 0.52 0 .2 2 0 .2 0 0 .1 2 0 .1 2 00 ** O ooot-to o'oo'd 68*0 WO a 0.60 0.54 0.60 0.46 0.19 0 .1 S 0 .1 1 0 .1 1 JS c<d v v T3 c 0 al i ao o> o -c c H *22 5c s o6 o o Se er dJ S- 8J =a