Insulation Overstock
Wholesale Fiberglass Insulation · insulationoverstock.com
Doc: IO-SPEC-WMP50-01
Rev: 2026-07
WMP-50 Metalized Fiberglass Insulation — Warehouse Grade
PSKP classification. Highest-tensile facing in the NAIMA lineup with metalized polyester layer for radiant heat control.
Physical Specifications
| Facing Classification | PSKP (metalized polyester / scrim / kraft / polypropylene) |
| Facing Color | White with metalized backing |
| Substrate | NAIMA-certified fiberglass batt |
| Available Widths | 4 ft, 5 ft, 6 ft |
| Available Lengths | 16 ft to 100 ft rolls |
| Radiant Reflection | Metalized backing: ~85% radiant reflectivity |
Performance Data
| R-Value Range | R-8 through R-30 |
| Vapor Permeability | 50 perms (ASTM E96) |
| Fire Rating | Class A / Class 1 (ASTM E84) |
| Tensile Strength | 65 lbs/in (industry-leading) |
| Mullen Burst Strength | ≥80 psi |
| VOC Emissions | Compliant with CDPH 01350 |
R-Value / Thickness / Wholesale Rate
| R-Value | Nominal Thickness | Wholesale Rate ($/sq ft) | Recommended Use |
|---|---|---|---|
| R-8 | 2.5″ | $0.54 | Warehouse condensation control |
| R-10 | 3.0″ | $0.58 | Light-industrial dry storage |
| R-11 | 3.5″ | $0.61 | Warehouse 2x4 wall assemblies |
| R-13 | 3.625″ | $0.71 | Distribution center walls |
| R-19 | 6.0″ | $0.96 | Warehouse roof + tall walls |
| R-25 | 8.0″ | $1.19 | Cold-climate warehouse insulation |
| R-30 | 9.5″ | $1.42 | Aircraft hangar, warehouse roofs |
Standards Compliance
| Material Standard | ASTM C665 Type II Class C |
| Fire Testing | ASTM E84 (Class A) |
| Vapor Testing | ASTM E96 |
| Certification | NAIMA-certified U.S. mill |
| Return Policy | 30-day inspection window |
Recommended Applications
| Warehouses | Best-in-class (tensile + radiant reflection) |
| Distribution Centers | Roof + walls, all climates |
| Aircraft Hangars | Roof (radiant heat control) |
| Manufacturing | High-abrasion, high-humidity environments |
| Cold Storage | Excellent perm rating for freezer facilities |
Ordering
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