Description Of Wall
ThermaSteel is a specially designed and patented, cold formed steel section which has relatively high strength to mass ratios comparing to other similar structural materials. This structural advantage is coming from the lip reinforced triangular cut-outs along the length of its web.
During the summer of 2002 two 8x8-ft wall specimens were constructed and tested at Oak Ridge National Laboratory Buildings Technology Center (ORNL BTC). They were using 2x4 and 2x6 ThermaSteel studs installed at 24-in. on center.
The first 8x8-ft section of ThermaSteel wall was constructed using 3.5-in. 16 gauge studs installed at 24-in. on center. Conventional, full web C-shape steel profiles (16-gauge) were utilized for top and bottom tracks. Similarly, the second wall was constructed using 5.5-in. 16 gauge studs installed at 24-in. on center.
In both test walls wall cavities were insulated using fiberglass batts (R-13 for 2x4 wall and R-19 for 2x6 wall). Exterior wall sheathing was 7/16-in. Oriented Strand Board (OSB) and interior wall sheathing was made using 5/8-in. Type-X gypsum board.