Div 09 · Finishes
DensGlass Fireguard Sheathing
G
Georgia-Pacific · DensGlass Fireguard Sheathing, 5/8 in
A 5/8 in. fire-rated glass-mat faced exterior gypsum sheathing with a treated core, warranted for up to 12 months of weather exposure before cladding.
✓ Verified 2026-08-28
Specs on this page were checked against Georgia-Pacific DensGlass Technical Guide on 2026-08-28.
Specifications
| Thickness | 5/8 in (15.9 mm) |
| Exposure warranty | 12 months |
Certifications & Standards
ASTM C1177
ASTM C1280 application standard
ASTM E136 noncombustible core
ASTM D3273 mold resistance rating 10
UL Fire Resistance Classification
Attributes — product claims, not third-party certifications
Type XGlass-mat facedMold resistant12-month exposure warranty
Sustainability
No sustainability metrics on file for this product.