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Unilin 90mm x 450mm x 1200mm Cavity Wall Square Edge Thin-R Insulation

OUR CODE: MJP00001 Category
Product Overview

Unilin PIR cavity wall insulation board, 90mm x 450mm x 1200mm (3.5″ x 17.7″ x 47.2″)

Designed for use in traditional masonry cavity walls to maintain a residual cavity

Provides high thermal resistance of 4.05m²K/W, reducing heat loss effectively

Closed cell structure with gas-tight facings offers excellent moisture resistance

Single board covers 0.54m²; ideal for bulk orders on site

Shipping

Estimated Delivery:
Wednesday 22nd April – Friday 24th April

£12.07 inc VAT

Description

The Unilin 90mm x 450mm x 1200mm Cavity Wall Square Edge Thin-R Insulation is a high-performance PIR board built for builders and bricklayers working on traditional masonry cavity walls. It delivers outstanding thermal efficiency while preserving a residual cavity, essential for protecting walls against wind-driven rain. Please note, this product is supplied as insulation boards only.

This insulation board is specifically designed for cavity wall construction, ensuring a reliable thermal barrier and maintaining moisture protection through the residual cavity. It’s perfect for external walls on housing, extensions, and refurbishment projects where meeting or exceeding current thermal standards is required. The board’s square edge allows for neat, easy installation and effective airtightness on site.

Delivery Coverage

Core Delivery Zone
AL • EC • EN • HA • HP • IP • KT • LU • N • NW • SG • SL • SM • TW • UB • W • WC • WD

Extended Delivery Zone
Croydon (CR): CR0 • CR4 • CR7

Cambridge (CB): CB6 • CB7 • CB8 • CB10 • CB11 • CB22 • CB23

Chelmsford (CM): CM16 • CM17 • CM18 • CM19 • CM20 • CM21 • CM22 • CM23 • CM24

Ipswich (IP): IP7 • IP14 • IP21 • IP22 • IP23 • IP24 • IP25 • IP26 • IP27 • IP28 • IP29 • IP30 • IP31 • IP33

Milton Keynes (MK): MK1 • MK2 • MK3 • MK4 • MK5 • MK6 • MK7 • MK17 • MK18 • MK41 • MK43 • MK44 • MK45

Peterborough (PE): PE7 • PE8 • PE15 • PE16 • PE19 • PE26 • PE27 • PE28 • PE29

Reading (RG): RG1 • RG2 • RG4 • RG5 • RG6 • RG8 • RG9 • RG10 • RG12 • RG30 • RG31 • RG42

South London (SW): SW3 • SW5 • SW6 • SW7 • SW10

Delivery Pricing

Delivery Option Fee Order Value
Core Delivery £25 £0 – £749.99
Free Delivery £0 Orders £750+

Returning An Item

At Halcyon Timber, we strive to provide the highest level of customer satisfaction. If for any reason you are not fully satisfied with your purchase, we offer a straightforward return policy.

To initiate a return, please provide proof of purchase (such as a till receipt or order confirmation email) and ensure that the product is returned in the same condition it was delivered in—clean, dry, undamaged, and in its original packaging.

Returns must be made within 30 days from the date of purchase or receipt of the product, whichever is later.

Please send all returns to:

HALCYON TIMBER
2 WARRENWOOD INDUSTRIAL ESTATE
HERTFORD SG14 3NU

Please note that all returns are subject to a 20% restocking charge. This policy covers the costs associated with restocking and processing returned items.

We thank you for your business and hope that you are completely satisfied with your Halcyon Timber purchase. If you have any questions or concerns regarding our return policy, please do not hesitate to contact us. Our customer service team is always ready to assist you.

Getting A Refund

To obtain a refund, all goods within an order must be returned to Halcyon Timber in good condition before the refund will be processed. Goods must be returned in the same condition they were delivered in—clean, dry, and undamaged.

Please note that a 20% restocking charge applies to all returns.

All refunds will be credited to the original payment card used to make the order. Refunds take 3-5 working days to process; the time it takes to appear in your account depends on your bank’s processing time.

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Price range: £16.20 through £62.39 inc VAT