What is its lifespan? Does it settle?

It lasts 30-50 years. The stable, interwoven fiber structure prevents settling or collapsing over time.

Is it good for soundproofing?

Yes. Its dense fibrous structure offers excellent sound absorption, ideal for studios, machinery rooms, and partitions.

How to identify quality rock wool?

Check for uniform color, no bad odor, firm texture (no shedding), and verify official test reports.

Key construction tips for external walls?

Use a combination of adhesive and anchors for secure fixing. Ensure the system is breathable to prevent moisture buildup.

Rock Wool vs. Glass Wool vs. XPS?

Rock Wool: Best for fire safety (Class A) and soundproofing. XPS: Best for thermal insulation and compression resistance (roofs/floors). Glass Wool: Lightweight and flexible, ideal for internal steel structures and ducts.

Premium 50mm Rock Wool Insulation Sheets for Roofing

Name: Premium 50mm Rock Wool Insulation Sheets for Roofing
Brand: Guangdong Zhongjia Energy Saving Technology Co., Ltd
SKU: 2261400895

Guangdong, ChinaGuangdong Zhongjia Energy Saving Technology Co., Ltd

US$0.50-10.00

100 Pieces

Product profile

Customization

Available

After-sales Service

2-Year Quality Warranty

Feature

Durable, Easy to Install, Fierproof, Heat Insulation, Noise Reduction, Waterproof

Model NO.

class a

Highest Working Temperature

700℃

After-Sales Support

Technical Team Provides Installation Guidance

Customization Service

Free Sample Testing, and Personalized Size/Density

Global Certifications

CE, 1s0 9001, ASTM C612, and GB/T 11835-2016

Smoke Density Rating

ASTM E84 ≤50 %

Water Vapor Permeability

ISO 12572 ≥0.03 Kg/(M·S·PA)

Tensile Strength (Vertical)

En 1607 ≥7 Kpa Stable Installation

Transport Package

PE Bag

Specification

1200*600mm, Thickness: 30-200mm

Trademark

Zhongjia

Origin

Guangdong, China

Key features

Class A Fireproof: Made from natural rock melting point ,Non-combustible and smoke-free, ensuring top-tier fire safety.

Sound Absorption: Interconnected pores efficiently absorb sound waves, drastically reducing environmental noise.

Water Repellent: Treated with premium repellents (>98% rate), it resists moisture to maintain long-term dryness and performance.

Stable & Durable: Chemically stable, anti-aging, and mold-resistant. It won't shrink or settle, lasting for decades.

Green & Eco-friendly: Natural, asbestos-free, and non-toxic. Recognized globally as a safe, non-carcinogenic material.

Company profile

Self-brandedPatents AwardedExhibition ExperienceHigh Repeat Buyers Choice

Guangdong Zhongjia Energy Saving Technology Co., Ltd

Guangdong, China

Business Type: Manufacturer/Factory CertifiedExport Year: 1 Year CertifiedNearest Port: Guangzhou Port, Foshan Port, Shenzhen PortAverage Response Time: ≤0.16h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR, EXW

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and ODM capabilities, reports new product development within the past year, and operates two production lines with stated inventory capability. It has written procedures and records for supplier-service assessment, corrective and preventive actions, and customer complaints. Management-system certifications include ISO9001:2015, ISO45001:2018, and ISO14001. Reported delivery lead times are within 15 working days in both peak and off-season, with access to Guangzhou, Foshan, and Shenzhen ports. However, the supplier began exporting only one year ago, has no valid manufacturing-capacity contract with related subcontractors, and lacks overseas warehouse and showroom capabilities. No collaboration with Fortune 500 companies is reported. The available financial information is incomplete and inconsistent in detail, so financial credibility cannot be conclusively assessed.

Supplier typeThe supplier is presented as a manufacturer with a technical team, hundreds of production and sales personnel, two production lines, and in-stock capability. However, it reports no valid contract with related subcontractors, so the precise manufacturing structure and capacity governance are not fully established.

CertificationsThe supplier explicitly reports ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications. Product compliance certification and raw-material quality reporting are listed only as “Others,” without specific certification names.

After-Sales capabilityWritten procedures and followed records are reported for service-capability assessment, corrective and preventive actions, and customer complaints. Service terms include multiple quotation and payment options, while stated peak- and off-season lead times are within 15 working days; overseas warehouse and showroom services are unavailable.

R&D capabilityThe supplier reports new products within the past year, ODM service availability, and a technical team developed through continuous improvement. These statements provide explicit evidence of product-development capability.

Production capacityThe supplier reports two production lines, inventory capability, and lead times within 15 working days in both peak and off-season, with access to three nearby ports. However, it has no valid contract governing manufacturing capacity with related subcontractors.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full customization, minor customization, and flexible customization. It also provides ODM services, indicating broad support for customer-specific product development.

Client casesThe supplier explicitly reports no collaboration with Fortune 500 companies. No other named customer cases or verified customer references are provided in the slices.

Product Q&A

Q:Does rock wool contain asbestos or cause cancer?

No. It is asbestos-free and classified as non-carcinogenic by international authorities. Its fibers are bio-soluble and safe.

Q:Is it harmful? Any construction precautions?

The finished product is non-toxic. During installation, workers should wear masks and gloves to avoid temporary irritation from fibers. Once installed, it is perfectly safe.

Q:Do rodents eat rock wool?

No. As an inorganic mineral, it provides no food value and its dense structure deters rodents from nesting.

Q:How is its fire resistance?

Excellent. It is Class A non-combustible , producing no toxic smoke during a fire.

Q:Does water absorption ruin its insulation?

No. High-quality rock wool is water-repellent. It resists water penetration and recovers performance once dried.