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Celotex CW4085 Cavity Wall Insulation 1200x450x85mm - 7 Per Pack (3.78m2)

SKU

celoc85

£0.00 £0.00

Product Information

Celotex CW4085 boards measure 1200mm (47.24") x 450mm (17.72") x 85mm (3.35") providing effective cavity wall insulation.
Rigid PIR insulation with low thermal conductivity (0.022 W/mK) to help reduce heat loss and improve energy efficiency.
Designed for partial fill cavity wall applications, ideal for new builds and extensions.
Lightweight and easy to handle on site, ensuring quick and secure installation between cavity wall ties.
Boards sold in packs of 7 covering 3.78m² per pack.

Details

Celotex CW4085 is a specialist rigid PIR insulation board engineered for partial fill cavity wall installations. Built with contractors and developers in mind, it delivers outstanding thermal performance and durability, making it a dependable choice for serious building projects requiring long-term energy efficiency.

Application

Specifically designed for use between cavity wall ties in masonry walls, Celotex CW4085 reduces heat loss while maintaining structural integrity. It's commonly used in new builds, extensions, and renovation projects where high-performance insulation is critical to meeting building regulations and improving thermal comfort.

Dimension

1200mm (47.24") x 450mm (17.72") x 85mm (3.35")

Material

Polyisocyanurate (PIR) rigid foam core with a low emissivity composite aluminium foil facing.
Manufactured using a blowing agent with zero ozone depletion potential (ODP) and low global warming potential (GWP).

Type

Cavity wall insulation board.

Celotex CW4085 boards come in packs of 7, covering 3.78m². This product is CE-marked and British Board of Agrément (BBA) certified, ensuring compliance with building standards on thermal performance, condensation risk, and durability. Please note, boards are sold in packs and the image is for illustration purposes only.

More Information

More Information
Manufacturer	Celotex
MPN	CW4085
Insulation - Type	Cavity Wall
Insulation - Range	Celotex CW4000
Insulation - Thickness	85mm
Availability	Generally available in 5 to 7 working days.
Sap Id	celoc85
Unit of measure	per pack

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Delivery Information

Delivery availability

We deliver to most mainland UK addresses. Some postcode areas are excluded – please see the full list below.

Delivery charges

Delivery costs vary depending on your location, the products ordered, and the delivery method selected. All delivery charges are calculated clearly at checkout.

Fuel Surcharge

Information on our added Fuel Surcharge can be found at https://condell-ltd.com/fuel-surcharge-notification

Delivery dates

You can request a preferred delivery date at checkout. While we aim to meet this wherever possible, availability may depend on stock levels and third-party delivery schedules. If your chosen date is unavailable, a member of our team will contact you to arrange an alternative.

Delivery method

All deliveries are made kerbside as standard. For health and safety reasons, drivers are unable to carry materials beyond the kerb. If you have specific access requirements, please contact us before placing your order.

Delivery exclusions

We currently do not deliver to the following postcode areas:

AB16, AB21–22, AB30–AB38, AB41–AB56, BT1–BT94, CA2, CA15, CA28, DD1, DD8, DD9, DG1, DG2, DG10–DG14, DG16, FK18–FK20, GY1–GY9, HS1–HS9, IM1–IM9, IV1–IV5, IV7, IV12–IV13, IV21–IV28, IV30–IV36, IV40–IV56, JE1–JE4, KA1, KA4–KA6, KA14–KA15, KA18–KA21, KA27–KA30, KW1–KW3, KW6–KW17, KY6–KY10, KY13–KY16, LL49, LL58–LL62, LL64–LL78, PA17–PA78, PH11, PH19–PH26, PH30–PH33, PH35–PH38, PH40–PH44, PH49–PH50, PO30–PO41, SA68, SA71, ZE1–ZE3

Important delivery terms

Shortages must be reported within 48 hours and noted on delivery paperwork
All deliveries must be signed for; redelivery charges may apply
Deferred deliveries may incur storage charges
Collected orders are not subject to delivery charges
Returns are subject to a 25% restocking fee (delivery charges excluded)
Made-to-measure items are non-refundable
Reasonable access to the delivery point must be available; additional charges may apply