Import Astm Asphalt Roofing Felt — Buy in Bulk from Supplier in China

Cangzhou Jiansheng Bujilding Waterproof Material Co., Ltd. manufactures ASTM asphalt roofing felt, a bituminous waterproofing membrane composed of asphalt-saturated organic or fibreglass matting. The product is engineered to serve as an underlayment beneath primary roofing materials such as asphalt shingles, tiles, and metal roof panels. ASTM compliance indicates adherence to standards such as ASTM D226 for asphalt-saturated organic felt or ASTM D4869 for asphalt-saturated glass-fibre felt, though the specific ASTM designation should be confirmed with the supplier. The felt functions primarily as a secondary moisture barrier, shedding water that penetrates the outer roofing layer and protecting the roof deck from rot and mould degradation.

The material construction typically involves a base mat of glass-fibre or recycled cellulose fibres saturated with oxidised asphalt and surfaced with mineral stabilisers to prevent sticking during storage and installation. Standard weights for ASTM roofing felt range from 15 lb (7.3 kg per square, approximately 0.4 mm thickness) to 30 lb (14.6 kg per square, approximately 0.8 mm thickness), with 30 lb felt offering greater tear resistance and longer service life in exposed or high-wind applications. The asphalt content, measured as saturant weight per unit area, determines pliability at low temperatures and resistance to thermal softening in summer conditions. Fire resistance is achieved through mineral granular surfacing and the inherent self-extinguishing properties of the bituminous compound when tested to ASTM E108 or Class A, B, C roof covering standards.

Application sectors include residential pitched roof construction, commercial building renovation, timber-frame structures, and agricultural building waterproofing. Roofing contractors, building developers, and hardware distributors are the typical purchasers. The product is installed by rolling parallel to the eaves with overlaps of 50 mm to 100 mm at seams and 150 mm at valleys and ridges, fastened with corrosion-resistant staples or cap nails. For importers, the critical variables to confirm are the specific ASTM standard claimed, the weight classification (15, 20, or 30 lb), roll dimensions for container loading efficiency, and whether the product carries any fire-rating certification for the target market. Storage conditions before installation should remain dry and shaded to prevent premature adhesion or degradation of the asphalt binder.

Cangzhou Jiansheng Bujilding Waterproof Material Co., Ltd. is situated in the East Industrial Zone of Nanpi County, Cangzhou, Hebei Province, 061000, China. The supplier holds a harbor-tier trust classification and an imported-tier supplier designation on the marketplace, with response and verification metrics currently showing no activity. No specific founding date, registered capital, factory floor area, or annual production capacity in square metres of roofing felt are disclosed in the available profile. The company name contains the spelling 'Bujilding', which appears as registered rather than as an error in this context.

The supplier's product range centres on asphalt-based waterproofing materials, with this ASTM asphalt roofing felt positioned for export to construction markets requiring standard-compliant underlayment. The profile does not list ISO 9001, ISO 14001, or any third-party factory audit credentials, nor does it name specific export destinations or reference projects. Buyers should request a company brochure, business licence, and product test reports to ASTM standards before placing trial orders. The low response rate suggests enquiry follow-up may require persistence or alternative contact channels beyond the platform messaging system.