UL Directory O
$55.00
Roofing Materials and Systems Directory, Directory O
Includes roofing materials with approximately 600 Constructions and detailed listings.
Please note: The print edition format contains only the Roofing Materials and Systems Directory while the CD-ROM contains the following directories:
- Building Materials, Directory A
- Fire Protection Equipment, Directory B
- Fire Resistance, Directory C
- Roofing Materials and Systems, Directory O
