theo1
Civil/Environmental
- Jan 4, 2006
- 2
hello, could you tell me what is UL-263 say about fire rated design on 1 hour rated walls? i have existing plaster walls and i need to know if one layer of gypsum type-X is enough. i have a detail from national gypsum about reinforcing plaster walls with 1 type-X 5/8" installed on top of it. but could you indicate what exactly or spicifically i need to include? thank you.