Determine the CLTD for a wood-framed single-family detached residence at Lubbock, for exterior walls with the following orientations: INSTRUCTIONAL NOTE: CLTD values will vary based upon geographical location Values of CLTD for single family detached residences are provided in Tables 5.1, as extracted from the 2001 ASHRAE Fundamentals Handbook. The CLTD value is selected based upon • orientation of the surface • outside design temperature, • daily design temperature range, • L (less than 16 °F range) • medium, M (16 to 25 F range), • high, H (greater than 25 Frange) • mass of construction . light (eg. wood-frame) • medium (eg., masonry veneer) • heavy le 9. solid masonry) construction Following is an example of the process For Denver Colorado From Table 5.12 (at the end of chapter) outside air design temperature is 93 F (0.4%DBT) daily temperature range is 26 9 F = high (H) - greater than 25 From Table 5. 1. CLTD must be interpolated based upon orientation FACING EAST