Abstract
Roofing professionals have become concerned about the consolidation of manufacturers of roofing products. A comparison between the 1999 edition of the NRCA Roofing Materials Guide(s) and past editions indicate that although there are fewer manufacturers listed there are more products and systems listed.
Roofing professionals have become concerned about the consolidation of manufacturers of roofing products. A comparison between the 1999 edition of the NRCA Roofing Materials Guide(s) and past editions indicate that although there are fewer manufacturers listed there are more products and systems listed.
Date
2/1999
2/1999
Author(s)
Mark Graham
Mark Graham
Page(s)
93
93
Keyword(s)
roofing materials; Materials Guide
roofing materials; Materials Guide