Humphrys manufactures NFPA 701-certified flame-resistant tarps in three heavy-duty materials: polyethylene, vinyl, and canvas. Every fire retardant tarp is built in our Pennsylvania and Indiana facilities using the same reinforced construction as our standard tarps — heat-sealed hems, brass grommets, and welded seams — with added flame-resistant treatments that meet national fire safety standards. Whether you need fire-resistant tarps for welding containment, construction site compliance, fabrication shop enclosures, or event staging, our FR tarps are built to protect people, equipment, and property.
Flame Resistant vs. Fire Retardant vs. Fireproof — What's the Difference?
Buyers often search for "fireproof tarps," but it's important to understand the distinction. Flame-resistant and fire-retardant tarps are engineered to resist ignition, slow the spread of flame, and self-extinguish when the heat source is removed. They are not fireproof — no tarp material is completely impervious to fire. Our FR tarps are tested and certified to NFPA 701 standards, meaning they will not sustain combustion under the conditions defined by the National Fire Protection Association. For operations governed by OSHA hot work permits, ANSI/FM 4950 welding enclosure standards, or local fire marshal requirements, NFPA 701-certified flame-retardant tarps are the compliant choice. For a deeper dive into fire safety standards and material science, read our comprehensive guide to welding tarps and fire retardant covers.
Flame-Resistant Poly Tarps
Our flame-resistant poly tarp delivers the same 20-mil, full-weight construction as our standard polyethylene tarp with added flame-retardant treatment. At 10 oz. per square yard with a 2500-denier woven core, it's the most versatile option in the FR line — lightweight enough for temporary enclosures and rugged enough for long-term outdoor use. Ideal for construction site compliance, scaffolding wraps, and general-purpose fire-safe coverage.
Flame-Resistant Vinyl Tarps
When you need maximum durability and waterproof fire protection, our fire-retardant vinyl tarp is the answer. Built from 18 oz. PVC-coated polyester, it combines complete waterproofing with flame resistance for welding operations, fabrication facilities, and industrial equipment covers. The heavy vinyl construction also resists chemicals, grease, and UV exposure — making it the go-to fire retardant cover for demanding indoor and outdoor environments.
Flame-Resistant Canvas Tarps
For applications requiring breathability alongside fire protection, our flame-resistant canvas tarp offers the best of both worlds. The treated cotton canvas resists ignition while allowing air circulation that prevents condensation buildup on covered equipment and materials. Fire-resistant canvas tarps are the preferred choice for welding curtains, hot work enclosures, and equipment covers where trapped moisture would cause corrosion or mildew.
American-Made Fire Protection Since 1874
Humphrys has manufactured heavy-duty tarps and covers for over 150 years. Our flame-resistant tarps are built with the same attention to reinforced construction — extra-thick hems, welded seams, and brass grommets — that has defined our products since 1874. Every fire-resistant tarp ships from our facilities in Gosport, Indiana, or Philadelphia, Pennsylvania. Standard sizes ship in 1-2 days; custom sizes and made-to-order configurations are available in 2-3 weeks. Free shipping on orders over $150. Need a custom size, color, or mounting configuration? Request a free quote or call 800-457-4406.
