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20mm Thick 34mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
20mm Thick 34mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£5.90£7.08 Ex VATInc VAT Add to cart -
20mm Thick 42mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
20mm Thick 42mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£6.71£8.05 Ex VATInc VAT Add to cart -
30mm Celotex TB4030 PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
30mm Celotex TB4030 is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Celotex is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£18.93£22.72 Ex VATInc VAT£6.57£7.88 Per M2 Add to cart -
30mm Jablite HP+ 70E External Wall Insulation Board 1200mm x 600mm (4′ X 2′) Pack of 20 (14.40m2)
30mm Jablite HP+ 70E External Wall Insulation Board is designed to enhance thermal efficiency for external walls. It can be bonded or mechanically fixed, providing reliable insulation solution.
£54.29£65.15 Ex VATInc VAT£3.77£4.52 Per M2 Add to cart -
30mm Kingspan GreenGuard GG300 R Rigid Extruded Polystyrene Insulation Board 1250mm x 600mm Pack of 14 (10.50m2)
30mm Kingspan GreenGuard GG300 is a high performance rigid extruded polystyrene insulation. It is used to insulate inverted roofs, basements, car park decks, and heavy-duty commercial, industrial and cold store flooring offering a thermal conductivities as low as 0.033 W/m·K
£68.11£81.73 Ex VATInc VAT£6.49£7.79 Per M2 Add to cart -
30mm Recticel Eurothane GP PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
30mm Recticel Eurothane GP is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Recticel is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£18.31£21.97 Ex VATInc VAT£6.36£7.63 Per M2 Add to cart -
30mm Thick 17mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 17mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£7.88£9.46 Ex VATInc VAT Add to cart -
30mm Thick 21mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 21mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£8.11£9.73 Ex VATInc VAT Add to cart -
30mm Thick 27mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 27mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£8.68£10.42 Ex VATInc VAT Add to cart -
30mm Thick 34mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 34mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£9.21£11.05 Ex VATInc VAT Add to cart -
30mm Thick 42mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 42mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£10.09£12.11 Ex VATInc VAT Add to cart -
30mm Thick 48mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 48mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£10.66£12.79 Ex VATInc VAT Add to cart -
30mm Thick 54mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 54mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£11.62£13.94 Ex VATInc VAT Add to cart -
30mm Thick 60mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 60mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£12.26£14.71 Ex VATInc VAT Add to cart -
30mm Thick 67mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 67mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£11.06£13.27 Ex VATInc VAT Add to cart -
30mm Thick 76mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 76mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£13.91£16.69 Ex VATInc VAT Add to cart -
30mm Thick 89mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging 1000mm
30mm Thick 89mm Pipe Diameter Rockwool Rocklap Aluminium Foil Faced Pipe Lagging (length – 1000mm) is a premium thermal insulation material engineered to improve energy efficiency and minimise heat loss in pipe systems.
£16.39£19.67 Ex VATInc VAT Add to cart
30mm Insulation
30mm insulation is a thin layer of thermal material used where space is limited, but some heat control is still needed. It is not designed to provide full thermal performance on its own. Instead, it helps improve comfort, reduce cold spots, or boost an existing build-up without changing layouts.
What is 30mm thick insulation?
30mm insulation thickness means the material measures 30 millimetres from face to face. That depth limits the heat resistance it can provide, but it also makes it easy to fit where thicker products cannot.
At 30mm thickness, performance depends heavily on the material:
- Rigid foams trap heat using closed air cells
- Mineral fibres slow heat movement by holding still air
- Vacuum-based panels, such as VIPs, reduce heat transfer by removing air altogether
A 30mm thick insulation layer will usually support another insulating system. It works best when combined with thicker insulation elsewhere in the structure.
What is thick 30mm insulation used for?
30mm insulation thickness is used where space or detail matters more than raw performance.
Its typical applications include:
- Reducing cold bridging around window reveals and door liners
- Adding a thermal break behind battens or linings
- Upgrading floors or walls where levels cannot be raised
- Improving comfort in refurbishments without major strip-out
It is often chosen during retrofit work, shop fits, and tight refurbishment jobs where losing even 10–20mm of space can cause issues.
Types of 30mm insulation
30mm insulation is usually available in these materials:
PIR (Polyisocyanurate)
Rigid foam panels with high thermal resistance per millimetre. PIR works well where space is limited, and a firm surface is needed. Foil facings also help control heat movement by radiation.
Phenolic foam
Similar in form to PIR but usually slightly better at slowing heat flow. Phenolic boards require careful handling due to their brittleness.
EPS (Expanded Polystyrene)
EPS offers modest thermal resistance at 30mm, but it handles moisture well. It is light and easy to cut.
XPS (Extruded Polystyrene)
Denser than EPS and better suited to damp-prone or load-bearing areas. XPS is commonly used under floors and in areas that require high compression resistance.
Glass mineral wool
Made from fine glass fibres. At this depth, it offers limited thermal benefit but good acoustic absorption. It compresses easily, so it must be installed carefully to prevent gaps.
Rock mineral wool
Heavier and denser than glass wool. It performs better acoustically and handles fire exposure well. Thermal gains are modest at 30mm, but it is useful where fire or sound control is needed.
VIP (Vacuum Insulated Panels)
A specialist product with extremely high performance for its thickness. VIP panels outperform most conventional insulation materials, but must not be cut or pierced. They are used only where design demands ultra-thin insulation.
Other materials
Aerogel blankets and specialist composites are also available in thin formats, but availability is limited, and costs are high. These are usually specified by designers.
A thick 30mm insulation layer only delivers strong results when the material matches the job.
FAQ
Where to buy 30mm thick insulation?
You can buy 30mm thick insulation online directly from Insulation Wholesale. We stock a wide range of materials in 30mm thickness, including rigid boards, mineral wool, and specialist options. We supply:
- Clear product options with real-world advice
- Consistent UK availability
- Support for trade and project orders
If you need help matching a product to a detail or build-up, our store team will walk you through it.
How to cut 30mm insulation?
- Rigid boards: Use a sharp insulation saw or fine-tooth handsaw.
- EPS and XPS: Score deeply and snap.
- Mineral wool: Cut slightly oversize using a long-blade knife.
- VIP panels: Do not cut under any circumstances.
Where to fix 30mm insulation?
Fixing methods vary by surface:
- Timber: mechanical fixings or battens.
- Masonry: adhesive with supplementary fixings.
- Floors: laid loose or bonded, depending on load.
- Behind linings: held in place by the final finish.
Insulation 30mm thickness leaves little room for error. So ensure surfaces are flat, and fixings do not crush the material.
