Document bOvQBQb4QYpnp23NXQzKr8oDZ

American Society of Heating and Ventilating Engineers Guide, 1929 Houghten and C. C. Schrader, reported in Transactions, A.S.H. & V.E., Vol, 30, 1924 and Vol. 31, 1925 and others, including the tests by F. C. Houghten and M. E. O'Connell reported in the Journal, A. S. H. & V. E., Vol. 33, No. 11, papers by J. E. Emswiler and W. C. Randall recorded in the Journal of the A. S. H. & V. E., Vol. 34, No. 6, and by F. C. Houghten and M. E. O'Connell recorded in the Journal of the A. S. H. & V. E., Vol. 34, No. 7, may be conveniently adapted to calcu lation purposes. Similarly, for walls the tests by F. C. Houghten and M. Ingels reported in the Journal, A. S. H. & V. E., Vol. 33, No. 4 may be used. Table 15 as well as Figs. 4 and 6 present values from the tests by Houghten and Schrader at the Research Laboratory of the American Society of Heating and Ventilating Engineers at Pittsburgh. Table 16 is taken from the more recent tests made by Houghten and O'Connell on windows installed in the Southwestern Bell Telephone Company Building in St. Louis. The original report for the data of Table 15 and Fig. 4 is to be found in Transactions, A. S. H. & V. E., Vol. 30, 1924, No. 686, p. 105, and for Fig, 6 the data were presented in the Trans- . actions, A. .S. H. & V. E,, Vol. 30, 1924, No. 704, p. 313. Table 16 is based on data reported in the Journal, Vol. 33, No. 11. Table 17 is based on data obtained on walls at the Research Laboratory of the Society as reported in the Journal, Vol. 33, No. 4. Figs. 7 and 8'are taken from the paper by W. M. Richtman and C. Braatz, "Effect of Frame Calking and Storm Windows on Infiltration Around and .Through Windows," as reported in the Journal, Vol. 34, No. 9. Table 15 gives the leakage for a double-hung wood window not weatherstripped and the leakage for the same window fitted with a good weather strip for various wind velocities. Table' 16 gives the leakage for doublehung metal windows weatherstripped and rion-weatherstripped. Table 17 gives the leakage through brick and wood frame walls, with and without plaster. In addition to the information in this table, the authors'make the following statement: " In the case of walls with furring, lath, arid plaster painted, walls plastered directly on the brick with or without paint or frame walls with plaster painted, the leakage is so small as to require about 0.10 of a square foot of radiation per 100 sq. ft. of wall, or in fact, it could be said that the heat loss due to infiltration of such walls is negligible." Table 18 gives values for infiltration through steel windows of the rolled section type with pivoted orvswinging ventilators, and is derived from data presented by Emswiler and Randall in the Journal, Vol. 34, No. 6. The crack widths appearing in the Table are chosen as repre sentative of . a large number of measurements of installed steel windows of the type tested. Table 19 presents some figures for infiltration through a steel window of the hollow metal vertically pivoted type tested in place in a building, by Houghten and O 'Connell, and reported in the Journal, Vol. 34, No. 7. The crack width was not given, but it was stated that the sash was not in good shape and fitted loosely in the frame. Tables 15, 16, 17 and 18 are divided into two parts, the first part con- taining values based upon the original test data, and the second part 50 Chapter I--Heat Losses from Buildings Notes.--AS.. TTbhhu tee nvaaobltoutvehesetlgiaevbalekenaifgsoertathphrpoeruoplgxiahimtnahtneelouyn-nacctoarilrrkpeepcdetdfcrowarcockordaarcwokisunndudoptwthoea fnrKdaf iomnre..th Ief weatherstripped window include the " elsewhere" the frame is to be left uncalked the loss under th a leakage through the frame, t heading should be included Practically Ianll the heat loss'calculations. leakage around frames can be stopped by proper calking.`