Faced fiberglass blanket insulation for pre-engineered metal buildings (PEMB). Reduces condensation, improves thermal performance and provides acoustic absorption inside the envelope.
| Property | Value |
|---|---|
| Form | Fiberglass blanket laminated to vapor-retarder facing |
| Facings | WMP-VR (white vinyl) · FSK (foil / scrim / kraft) · Reinforced polyethylene |
| Thickness | 3 in · 4 in · 6 in · 8 in |
| Standard width | 48 in · 72 in · custom |
| Standard roll length | Up to 150 ft |
| R-values (installed) | R-10 (3 in) · R-13 (4 in) · R-19 (6 in) · R-25 (8 in) |
| Permeance | WMP-VR ≤ 0.02 perm (acts as vapor retarder) |
| Fire rating (facing) | Class A per ASTM E84 |
| Service temperature | Up to 450 °F (core) |
| Application | Over purlins / girts in metal buildings (PEMB), bar joist roofs, pre-eng steel |
| Climate performance | Priority in hot-humid zones (ASHRAE 1A, 2A, 3A) — Gulf Coast, Texas border, Mexico coast |
| Standards | ASTM C991 Type I/II, NAIMA 202, FM 4411 |
| Country of origin | Made in Mexico |
1 × 40 ft container ≈ 40–60 rolls (varies by thickness) ≈ 20,000–40,000 ft² of coverage.