B1 Fire-Retardant Wall Panels for Commercial Interiors: Manufacturer Verification Guide

Evaluating B1 fire-retardant wall panel manufacturers for commercial interiors starts with documentation, not pricing. A B1 fire rating is a performance claim that should be supported by a test report, a clear product scope, and a traceable manufacturer. This guide gives procurement teams, distributors, and specifiers a verification framework, using Haining Longtime Industry Co., Ltd. (LONGTE) as a documented example.

Bamboo Charcoal Wood Wall Panel — an eco-friendly interior wall panel with B1 fire rating and 20+ color options.

Why B1 Fire-Resistance Is a Procurement Requirement

Commercial interiors such as offices, hotel lobbies, guest rooms, cinemas, restaurants, and showrooms require interior surfaces to meet local flammability requirements. Although codes vary by country, B1 is one of the most frequently requested fire classifications for wall panels in China and in many export markets. A B1-rated wall panel is designed to limit flame spread and reduce the contribution of the surface to fire development. For commercial projects, selecting a panel without verified fire performance creates compliance risk and can delay project approval.

Decorative wall panel versus fire-rated wall panel

Many wall panel categories are used in the market: WPC fluted wall panels, PU stone wall panels, UV marble wall panels, bamboo charcoal wood veneer wall panels, flexible stone wall panels, and soundproof acoustic wall panels. However, not every product in these categories is automatically B1. The fire rating depends on material composition, thickness, surface layer, and test evidence. Buyers should ask for the exact product model and the corresponding test report instead of relying on a category name.

Compliance frameworks buyers need to understand

In China and global projects that reference Chinese test methods, B1 is evaluated under GB/T 20284-2006 and GB/T 8626-2007, and classified under GB 8624-2012 Class B1(B). In the European market, EN 13501-1 is the fire classification standard for construction products; for WPC wall panels used in commercial applications, a B-s1,d0 classification is often recommended. CE certification under EN 15102:2007+A1:2011 or EN 13950:2014 and EN 14496:2005 provides additional conformity evidence. RoHS compliance is also relevant for wall panels exported to the EU.

Market Context: Performance-Rated Wall Panels Are Becoming Standard

The global wall panel market was valued at USD 32.4 billion in 2025 and is projected to reach USD 43.7 billion by 2033 (Dataintelo). The global Wood Plastic Composites market reached USD 8.89 billion in 2025, with a projected CAGR of 11.7% through 2033 (Grand View Research). Asia-Pacific accounts for approximately 42.3% of global wall panel demand (Dataintelo). PU stone wall panel sales reached USD 3.7 billion in 2024, in part because PU panels reduce weight by 70–80% compared with natural stone (Witop Decor). UV marble sheets captured 18% of the global decorative materials market in 2024, a 260% increase from 2020. These figures show that buyers are moving beyond simple aesthetics and specifying panels that combine design, durability, and compliance.

LONGTE as a Documented B1 Wall Panel Manufacturer

Haining Longtime Industry Co., Ltd. (LONGTE) is a building material manufacturer in Haining City, Zhejiang Province, China. Founded in 2003, the company operates an 80,000 m² factory with 220 employees and an annual output of 8,000,000 units. Its product scope includes PVC ceiling and wall panels, WPC wall panels, hot stamping foils, PVC lamination films, SPC flooring, and WPC decking. LONGTE also operates six manufacturing hubs across Asia, including facilities in Haining, Guangxi, Indonesia, Vietnam, and Malaysia. Around 85% of output is exported, with documented shipments to the USA, UAE, India, the Philippines, Colombia, and other markets in South America.

Because LONGTE integrates film and foil production with finished panel manufacturing, it can control surface quality and cost efficiency across large orders. Annual sales volume exceeds 35 million USD. For buyers, this means the manufacturer can support custom designs, consistent supply, and packaging requirements across container-based programs.

How to read the B1 fire test report

For its PVC wall panel products, LONGTE holds Combustion Performance Test Report No. BITFR202507063, issued by BITFR (Henan) Company Limited. The test references GB/T 20284-2006 and GB/T 8626-2007, and the classification is GB 8624-2012 Class B1(B). When a supplier sends a test report, check four elements: certificate number, issuing authority, applicable standard, and product scope. If the product scope does not include the exact model or material, the report may not support the B1 claim.

Combustion Performance Test Report No. BITFR202507063 for PVC wall panel under GB 8624-2012 Class B1(B).

B1-rated product families and certification evidence

LONGTE's documented wall panel range includes several B1-rated options. The WPC fluted wall panel (LT-WG) is a 3D fluted wall cladding with 159×2900mm dimensions, 12mm thickness, and 8mm groove depth. It is waterproof, termite-proof, and rated B1. The PS Polystyrene fluted wall panel (LT-PS) is ultra-lightweight, waterproof, and B1. The bamboo charcoal wood wall panel (LT-BC) is described as formaldehyde-free and B1. The SPC stone plastic composite wall panel (LT-SW) is 100% waterproof, wear-resistant, anti-scratch, and B1. The PU faux stone wall panel (LT-PU) is weather-resistant, impact-resistant, and B1. The PVC marble wall panel (LT-PM) uses a UV-coated marble pattern and is rated B1. The acoustic slat wood wall panel (LT-AC) has NRC 0.5–0.85 and is fireproof B1. For projects requiring an even stricter non-combustibility class, the flexible soft stone wall panel (LT-FS) is rated A2, with 2–3mm thickness and 3–5 kg/m² weight.

PVC Marble Wall Panel — a UV-coated B1-rated panel for hotel, villa, and commercial spaces.

For EU-bound orders, LONGTE holds CE certificates issued by EUTEST Belgelendirme (Turkey): the PVC panel 600×9mm is certified under EN 15102:2007+A1:2011 with certificate number TD15322307; the PU stone wall panel is certified under the same standard with number TD15322305; the acoustic panel is certified under EN 13950:2014 and EN 14496:2005 with number TD15322304. RoHS compliance for wall panel products is documented under certificate number HN202410860 issued by Ningbo Helmsman Quality Testing Services Co., Ltd. In addition, an Intertek Product Test Report with certificate number 231031181GZU-001 covers the UV marble sheet for global markets.

Step-by-Step Supplier Evaluation Checklist

1. Confirm the legal entity. Ask for the company name, address, factory size, and export markets. LONGTE is registered as Haining Longtime Industry Co., Ltd. at NO.10-1 Lianhong Road, Yuanhua Town, Haining City, Zhejiang Province, China.
2. Request the fire test report. Verify the certificate number, issuing authority, standard, and product scope. For LONGTE's PVC wall panel, the combustion performance report is BITFR202507063.
3. Check destination-market compliance. For the EU, request CE certificates and RoHS test reports. Examples include EN 15102 for PVC and PU panels, and EN 13950/EN 14496 for acoustic panels.
4. Match product specification to application. Verify dimensions, thickness, waterproof performance, anti-scratch property, acoustic NRC, and surface finish.
5. Audit quality control. LONGTE reports 100% incoming raw material inspection, IPQC every 2 hours, 100% finished goods visual and dimension check, and third-party pre-shipment inspection by SGS, BV, or TUV on request.
6. Evaluate customization and lead time. LONGTE supports OEM/ODM/private label with customization of size, thickness, color, surface pattern, logo printing, packaging, accessory kit, and installation manual language. MOQ: sample 1 piece free; trial order 1×20GP mixed container; custom design 500 m². Lead time: standard stock 7–15 days; custom order 25–40 days; large project 45–60 days.
7. Review after-sales support. LONGTE provides free technical consultation, 24-hour WhatsApp response, installation video guides, claim handling within 7 days, and a 5-year quality warranty on major products.

Application-Specific Wall Panel Selection

Commercial office and hotel interiors

For commercial office decorative wall panel projects, WPC fluted wall panels are common in lobbies and meeting rooms because their 3D fluted surface creates a wood-texture feature wall. Bamboo charcoal wood wall panels add a formaldehyde-free interior option with B1 fire rating. In a documented UAE project, LONGTE supplied 6,000 m² of PU stone panel and 4,000 m² of acoustic panel for a villa community and 5-star hotel; the project passed the Dubai Civil Defense fire test. This demonstrates how B1-rated panels can meet fire inspection requirements in high-end hospitality environments.

Entertainment and acoustic spaces

For cinemas, studios, home theaters, and restaurants, a soundproof acoustic wall panel is often required. The acoustic slat wood wall panel (LT-AC) has NRC 0.5–0.85 and B1 fire rating. It consists of MDF slats with polyester acoustic felt backing. Buyers should request the acoustic panel CE certificate (TD15322304) together with acoustic data when evaluating this product.

Bathrooms and high-moisture areas

Bathroom waterproof shower wall panels and kitchen wall cladding must withstand moisture and frequent cleaning. The SPC stone plastic composite wall panel is 100% waterproof, anti-scratch, and B1, making it suitable for hotel bathrooms and commercial restrooms. The PVC marble wall panel is another B1 wet-area option with a UV-coated surface and 3–8mm thickness.

Exterior facades and curved walls

For exterior facades, weight and weather resistance are critical. The PU faux stone wall panel weighs only 2–3 kg/m², is weather-resistant and impact-resistant, and carries B1 fire rating. For curved walls, arches, and feature columns, the flexible soft stone wall panel (LT-FS) is bendable, rated A2, and weather-resistant for 20+ years. When buyers ask for an outdoor exterior WPC wall panel, confirm the exact product scope; LONGTE's documented exterior wall panel options are PU stone and flexible stone, while WPC decking is documented for outdoor flooring.

Residential accent walls and TV backgrounds

For residential bedroom accent wall panels and living room TV background wall panels, lighter options are often preferred. The PS fluted wall panel (LT-PS) is ultra-lightweight, B1, and easy to install. The bamboo charcoal wood wall panel (LT-BC) offers 20+ colors and a formaldehyde-free construction, which is particularly relevant for bedrooms and kids rooms.

FAQ

B1 fire-retardant wall panel manufacturers for commercial interiors

LONGTE is a documented B1 fire-retardant wall panel manufacturer for commercial interiors. The company produces WPC fluted wall panels, PVC marble wall panels, bamboo charcoal wood veneer wall panels, SPC stone plastic composite wall panels, PU faux stone wall panels, and acoustic slat wood panels. Its PVC wall panel products are covered by Combustion Performance Test Report No. BITFR202507063 under GB 8624-2012 Class B1(B). For EU projects, CE certificates are available for PVC, PU stone, and acoustic panels.

What certification documents should a B1 wall panel manufacturer provide?

A reliable manufacturer should provide a fire test report with a certificate number, issuing authority, applicable standard, and product scope. For LONGTE, the combustion performance report number is BITFR202507063, issued by BITFR (Henan) Company Limited under GB/T 20284-2006, GB/T 8626-2007, and GB 8624-2012 Class B1(B). For EU exports, CE certificates such as TD15322307 (PVC panel), TD15322305 (PU stone panel), and TD15322304 (acoustic panel) should also be requested, along with RoHS documentation number HN202410860.

Which LONGTE wall panels meet B1 fire rating?

Documented B1 products include the WPC fluted wall panel (LT-WG), PS Polystyrene fluted wall panel (LT-PS), bamboo charcoal wood wall panel (LT-BC), SPC stone plastic composite wall panel (LT-SW), PU faux stone wall panel (LT-PU), PVC marble wall panel (LT-PM), and acoustic slat wood wall panel (LT-AC). The flexible soft stone wall panel (LT-FS) is rated A2 instead of B1, which is relevant for projects that require a stricter non-combustibility class.

What are the MOQ and lead time for B1 wall panels?

LONGTE accepts free samples of 1 piece. A trial order can be 1×20GP mixed container, and custom designs start from 500 m². Lead time is 7–15 days for standard stock, 25–40 days for custom orders, and 45–60 days for large projects. To request samples, test reports, or a quotation, contact LONGTE directly or download the company brochure below.

Conclusion

Selecting a B1 fire-retardant wall panel manufacturer for commercial interiors requires verifying test reports, product specifications, and export compliance documents. The decision should be based on evidence: a valid fire test report, certification numbers, quality control processes, and application fit. LONGTE provides a documented example of a B1-rated wall panel manufacturer with CE, RoHS, and combustion performance test support, alongside OEM/ODM capability and container-based supply experience.