TABLE OF CONTENTS The end of this section includes two lists of the building components. One list is arranged in ascending numerical order according to the assigned building component code within each of the five building construction groups as follows:
Residential Walls (RW)
Residential Roofs (RR)
Commercial Walls (CW)
Commercial Roofs (CR)
Commercial Floors (CF)
The list in Table I contains the building component codes (RW1, RW2, etc.), a description of the building construction, and the ASHRAE design thermal transmittance. The next subsection, "Heat Transmission Coefficient Data Sheets," gives the definition of the ASHRAE design U-factor.
| 1. Residential Walls | ||
|---|---|---|
| Code | Description of Construction | U ASHRAE Btu/h ft 2 F |
| RW1 | 2 3 inch double wood stud wall: polyisocyanurate with fiberglass batts in cavity 21.2 F (-6.0 C) mean temperature | 0.040 |
| RW1A | 2 3 inch double wood stud wall: polyisocyanurate with fiberglass batts in cavity 39.6 F (4.2 C) mean temperature | 0.027 |
| RW1B | 2 3 inch double wood stud wall: polyisocyanurate with fiberglass batts in cavity 56.9 F (13.8 C) mean temperature | 0.043 |
| RW1C | 2 3 inch double wood stud wall: polyisocyanurate with fiberglass batts in cavity 101.5 F (38.6 C) mean temperature | 0.051 |
| RW5 | 2 3 inch double wood stud wall: polyisocyanurate with fiberglass batts in cavity 21.8 F (-5.7 C) mean temperature | 0.028 |
| RW5A | 2 3 inch double wood stud wall: polyisocyanurate with fiberglass batts in cavity 36.1 F (2.3 C) mean temperature | 0.029 |
| RW5B | 2 3 inch double wood stud wall: polyisocyanurate with fiberglass batts in cavity... |
