Shenyang Qiangyun Color Steel & Steel Structure Co., Ltd. is one of the most reliable manufacturers and suppliers of puf insulated sandwich roof panels in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to wholesale advanced puf insulated sandwich roof panels in stock here from our factory. Also, pricelist is available.

Technical Specifications

Parameter	Specification
Product Name	puf insulated sandwich roof panels
Material	PU foam core + double-sided metal faces
Surface Material	PPGI/PPGL, galvanized, Galvalume, optional Al/stainless
Core Material	High-density rigid closed-cell polyurethane foam
Panel Thickness	30 / 50 / 75 / 100 / 150 / 200 mm
Sheet Thickness	0.3–0.8 mm
Width	950 / 1000 mm (custom available)
Length	Customized; max 11.9 m for 40ft container (longer on request)
PU Core Density	38–43 kg/m³
Thermal Conductivity	0.022–0.024 W/(m·K)
Water Absorption	≤ 1.5%
Fire Resistance	B1 (GB 8624) / Euroclass B-s2,d0 - EN 13501-1; PIR upgrade B-s1,d0
Connection	Concealed-fixed corrugated / tongue-and-groove, sealed
Custom Colors	White, light gray, sky blue, brick red + full RAL
Applications	Factory / warehouse / cold-store / prefab / commercial roofs
Service Lifespan	15–25 years
Brand	QY
Place of Origin	China

Performance Parameters

Property	Value / Rating
Reaction to Fire	B1 (GB 8624) / Euroclass B-s2,d0 - EN 13501-1, self-extinguishing
Thermal Conductivity (λ)	0.022–0.024 W/(m·K) - ultra-low, superior insulation
U-value (example)	0.67 → 0.10 W/m²·K for 30→200 mm - verify with test report
PU Core Density	38–43 kg/m³ (common use)
Water Absorption	≤ 1.5% - waterproof & moisture-proof
Closed-cell Ratio	≥ 90% - stable, non-settling core
Service Lifespan	15–25 years under normal atmospheric conditions
Connection	Concealed-fixed corrugated / tongue-and-groove, sealed

How to choose the panels as the thickness?

Surface Material & Coating Options

Option	Description
PPGI / PPGL color-coated steel	Standard weather-resistant facing
Hot-dip galvanized steel	Base for humid / coastal sites
Galvalume (aluzinc) steel	Enhanced salt-spray & corrosion resistance
Aluminum / stainless steel	Special environments on request
Coating	PE / SMP / HDP / PVDF - select by climate (PVDF for UV)

Color & Customization

We supply white, light gray, sky blue and brick red with thickness from 30-200mm. Full RAL color customization can match architect's requirements, embossed/matte/sand finishes; OEM & label custom,ideal for export, factory and brand identification projects.

Application Scenarios

Ideal roofing panels for steel factories, logistics warehouses and cold storages. Lightweight cuts structural burden, fast installation speeds construction. Suitable for modular, public and anti-corrosion coastal agricultural roofs.

Project Reference

This cold-chain logistics warehouse in Thailand installed our PU sandwich roof panels with a total area of 12,500 m², and the project was completed in 2023. Engineered for tropical high-temperature and high-humidity environments, our PU roof panels offer ultra-low thermal conductivity and reliable waterproof interlocking joints. They maintain a consistently stable low temperature inside the cold storage while effectively reducing refrigeration energy consumption. This panel system has passed inspections in compliance with local building codes, making it an ideal roofing solution for large-span cold storage facilities.

Customization & OEM Service

Thickness 30–200 mm (confirm per project); width on request; max length 11.9 m for containers; face/core grade upgrade; RAL 1-to-1 match; embossed/matte/sand textures; OEM & full roofing accessories supplied.

Certifications & Compliance

Our PU sandwich wall products achieve full ISO certification covering quality, environment, occupational health and energy management. EN-compliant steel substrates guarantee globally accepted panel performance.

Lead Time, MOQ & Trade Terms

Item	Detail
Lead Time	Samples: 2 working days. ≤5,000 m²: 5–7 days. 10k–50k m²: 7–15 days. Custom profile/coating: 10–18 days after drawing confirmation. Urgent orders can be expedited by negotiation.
Minimum Order	MOQ: 1 m² - confirm with sales]; Sample & small-batch accepted.
Trade Terms	FOB / CIF / DDP available - confirm with sales.
Payment	T/T, L/C - confirm terms with sales
Packing	PE protective film, corner guards, wooden pallet, stretch wrap for sea freight.

Warranty and After-Sales Service

Online technical support and remote installation guidance are provided. For product-quality issues we offer compliant replacement and technical solutions, with 24h response. Dedicated follow-up covers pre-sales selection, in-production progress with packing photos, and post-delivery troubleshooting.

Company Profile

Welcome to consult about puf insulated sandwich roof panels. We support custom specifications and bulk orders, and provide one-stop engineering solutions, accurate export quotations and complete certification documents for all overseas projects.

FAQ

Q1: What building envelope needs can your PUF roof panel satisfy?

A: It serves industrial, cold-chain, prefab, commercial, agricultural, coastal and emergency roofs. Single installation delivers insulation, waterproofing and integrated functions.

Q2: How about the thermal insulation performance?

A: It features ultra-low and stable λ value, providing reliable long-term thermal insulation for your building projects.

Q3: What design prevents roof leakage?

A: Adopted concealed lap joints. It eliminates water leakage risks and ensures excellent panel surface flatness.

Q4: Why is it suitable for cold-chain roof projects?

A: Stable ultra-low λ insulation minimizes temperature loss, perfectly matching the strict thermal requirements of cold storage roofs.

Q5: What benefits does it bring to prefab site buildings?

A: All-in-one envelope solution cuts construction steps. Fast installation fits temporary and prefabricated building schedules.

Related Sandwich Panel Products

We provide EPS, PIR, PU and rock wool sandwich panels and other core-material products, steel structures and steel coils. EPS is a budget wall & roof option; PIR has higher fire-rated insulation; PU has ultra-low λ; rock wool is A1 non-combustible for high fire-risk projects.