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For commercial and industrial refrigeration projects (cold rooms, cold stores, process cooling) — not household fridges, home freezers or appliance repair. Results are planning estimates, not engineering design or safety advice; a qualified refrigeration engineer must confirm sizing before purchase.
Room size, temperature, design ambient and core material give an indicative panel thickness, U-value, envelope area and transmission heat gain for your RFQ.
Sub-zero room: specify under-floor heating or ventilation to prevent frost heave.
Add product, infiltration and equipment loads in the cooling load calculator.
Buyer questions on cold stores and materials →
Send these inputs as a supplier-ready brief. ColdMatch reviews the request before any supplier introduction.
Request supplier proposalsPreliminary estimate only. Thickness and heat gain are indicative. Panel suppliers confirm the design against site climate, fire code and energy targets.
Dimensions and temperatures can be entered in metric or imperial units; the U-value calculation remains in canonical SI units.
A 30 × 20 × 8 m frozen room at −20 °C in a 35 °C ambient uses PIR panels.
Indicative panel thickness: 125 mm (4.92 in), with approximately 19.4 kW transmission heat gain.
Illustrative planning result only. Confirm the final design, duty, equipment selection and performance with a qualified refrigeration engineer and supplier quotation.
As a common starting point: 80–100 mm PIR for chilled rooms (0 to +5 °C), 120–150 mm for frozen rooms (−18 to −25 °C) and 150–200 mm for blast freezers or −30 °C and below. Hot climates, direct sun on the roof and energy targets can justify the next thickness up.
Q = U × A × ΔT. U is approximately the panel's thermal conductivity divided by its thickness (PIR ≈ 0.022 W/m·K, PUR ≈ 0.024, mineral wool ≈ 0.040). A is the total envelope area and ΔT the difference between design ambient and room temperature.
PIR and PUR give the lowest U-value per mm. Mineral wool is chosen where fire rating is prioritised by insurers or local code, but needs more thickness for the same heat gain. Confirm the required fire classification with your insurer and authority.
No. Panel suppliers confirm thickness, joints, floor insulation, vapour barrier and heating under frozen floors after reviewing the site and code.
Send your requirements. A ColdMatch specialist reviews every request, prepares a brief and introduces qualified suppliers — free for qualified buyers.
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Your size, cost and load inputs are copied into the quote form, so you don't type them twice. Nothing is sent until you review and submit.
