Agricultural Polyurethane Roof Insulation Panels are composite roof systems featuring a rigid polyurethane (PUR/PIR) foam core bonded to specialized facings. Designed for livestock housing and agricultural storage, these panels isolate interior thermal environments while resisting high humidity, continuous washdown cycles, and corrosive animal waste gases (ammonia and hydrogen sulfide).
Technical Specifications
|
Parameter |
Specification Details |
Testing Standard |
|
Core Material |
Rigid Polyurethane (PUR) / Polyisocyanurate (PIR) |
DIN 4102 / EN 13165 |
|
Core Density |
40 +/- 2 kg/m3 |
ISO 845 |
|
Thermal Conductivity (lambda) |
<= 0.022 W/(m·K) (initial aged value) |
EN 12667 |
|
Standard Thicknesses |
50mm, 75mm, 100mm, 120mm, 150mm |
- |
|
Effective Width |
1000mm, 1067mm, 1150mm (Customizable) |
- |
|
Facing Options |
||
|
Exterior |
Polyester (PE), SMP, PVDF. |
|
|
Interior |
Anti-corrosive film, FRP, or embossed aluminum. |
|
|
Facing Thickness |
Steel: 0.40mm - 0.70mm |
ASTM A755 / EN 10169 |
|
Facing Thickness |
FRP: 1.2mm - 2.0mm |
|
|
Fire Performance |
B2 / B1 (formulation dependent) |
ASTM E84 / EN 13501-1 |
|
Compressive Strength |
>= 150 kPa |
ISO 844 |
|
Water Absorption |
<= 3.0 vol% |
ISO 2896 |
Key Features
Closed-Cell Core: Over 95% closed-cell content restricts moisture migration, preventing internal condensation and stabilizing thermal resistance.
Ammonia-Resistant Facings: Multi-layer interior coatings and FRP options withstand high-concentration airborne ammonia without blistering or delamination.
Thermal Bridge Elimination: Tongue-and-groove joint profiles secure an unbroken thermal envelope to optimize livestock feed conversion and reduce energy costs.
Load-to-Span Capacity: High shear modulus permits extended purlin spacing under heavy snow and wind loads.
Applications
Swine Production Facilities: Nursery and finishing barns requiring frequent high-pressure disinfecting and waste gas resistance.
Poultry Houses: Climate-controlled broiler and layer facilities demanding strict humidity and temperature regulation.
Dairy Barns & Milking Parlors: Roof structures engineered for high moisture and condensation control.
Grain & Crop Storage: Airtight thermal envelopes preventing mold, pest intrusion, and spoilage.
Surface & Finish Options
Layer Stack Structure (Outside to Inside):
Weather Exposure: Protective Coating (SMP/PVDF/PE, 20-25um) + Metallic Substrate (Hot-dip galvanized steel, Z275/AZ150)
Core Layer: Polyurethane / PIR Foam Core (40 kg/m3)
Interior Exposure: Anti-Corrosive PE Film / FRP Sheet / Embossed Aluminum
Exterior Finishes: SMP offers balanced rural weathering resistance; PVDF is applied for coastal or high UV zones.
Interior Finishes: Anti-corrosive PE film resists acidic cleaning vapors; non-porous FRP sheets provide high impact resistance for heavy-washdown environments.
Customization Capabilities
Length Cutting: Factory cut-to-length up to 16 meters based on shop drawings to minimize site waste.
Profile Options: Flat, lightly ribbed, or micro-ribbed exterior profiles for optimal rainwater drainage.
Density Adjustments: Foam density adjustable between 38 and 45 kg/m3 for specific structural load requirements.
Accessory Integration: Factory-applied perimeter sealant beads and compatible ridge/gable flashings.
Manufacturing & Quality Control
Continuous Foaming: Produced via high-pressure dual-conveyor lamination lines, ensuring uniform foam expansion and strict thickness tolerance (+/- 1.5mm).
Chemical Adhesion: Automated metal facing pre-heating guarantees core-to-skin bonding under thermal cycling.
In-Line Inspection: Continuous laser thickness/squareness monitoring, paired with ISO 9001 lab testing for density, compressive strength, and thermal conductivity with full batch traceability.
Installation & Joint System
Fastening: Interlocking tongue-and-groove joints with concealed or through-fastened layouts featuring EPDM sealing washers.
Vapor Sealing: Factory-injected or site-applied butyl sealant grooves prevent moisture ingress from high-humidity interiors.
Handling: Spreader bars or vacuum lifters required for panels exceeding 8 meters during placement.
Packaging & Logistics
Protective Bundling: Stacked with polyethylene film interleaving to prevent surface scratches.
Secure Base: Placed on EPS blocks and timber dunnage with reinforced strapping and edge protectors.
Shipping: Optimized for 40-foot High Cube (40'HC) containers or open-top flat racks with maritime anti-corrosion protection.
FAQ
Q: Can these panels withstand continuous high-pressure washing and disinfectant spraying?
A: Yes. Interior FRP facings or anti-corrosive steel coatings endure routine chemical washdowns and acidic cleaning agents.
Q: What is the maximum unsupported span for these roof panels?
A: For a standard 100mm PUR panel under a 0.75 kN/m2 live load, the single-span limit ranges up to 3.2 to 3.8 meters, depending on local wind and snow load codes.
Q: How do you prevent interior condensation?
A: High thermal resistance (low U-value) keeps interior surface temperatures above the dew point, while continuous joint sealing prevents warm, humid air migration.
Q: What documentation is provided with an order?
A: Each shipment includes a Certificate of Analysis (COA), fire and thermal test reports, mill test certificates for steel facings, and shop installation drawings.
Hot Tags: agricultural polyurethane roof insulation panels, China agricultural polyurethane roof insulation panels manufacturers, suppliers, factory
