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Cavity Wall Insulation

Cavity Wall Insulation
Cavity Wall Insulation
Cavity Wall Insulation
Cavity Wall Insulation
Cavity Wall Insulation
Bestseller Free Shipping
Cavity Wall Insulation
Cavity Wall Insulation
Cavity Wall Insulation
Cavity Wall Insulation
Cavity Wall Insulation
Cavity Wall Insulation
£4.22
  • Stock: In Stock
  • Model: WCWIV
  • MPN: WCWIV

Available Options

The thermo-efficient qualities of Custompac polystyrene bead make it a versatile wall cavity insulation material. 

For the safety of our customers, our standard bead polystyrene cavity wall insulation is manufactured with a Flame Retardant additive and tested to BS 5852: 1982 Part 2.

All prices include free P&P to Mainland UK (excluding highlands & islands). 

Quantities Available (Cubic feet/Litres): 

1CF/28Ltrs, 2CF/57Ltr, 3CF/85Ltr, 4CF/113Ltr, 5CF/142Ltr, 6CF/170Ltr, 7CF/198Ltr, 8CF/227ltr, 9CF/255tr, 10CF/283Ltr 

Approx bead size (inches/mm): 0.2"/5mm
 
IMPORTANT DELIVERY INFORMATION FOR 3CF AND ABOVE:
 
Please contact us if you live in the following areas as an additional surcharge is required for delivery to the following postcodes:
 
Scottish Highlands - AB36-38, AB55-56, FK17-21, IV1-39, IV52-54, IV63, KW1-14, PA21-40, PH19-26, PH30-41, PH49-50
 
Scottish Islands - 2-5 day delivery
Scottish Islands - HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3

80CF - Shipped to mainland UK only - excluding Highlands and Islands


 

EPS Insulation Fire Testing

In April 2018, tests to the EN 13823 and EN 11925-2 standards were carried out by material testing experts Exova Warringtonfire, to determine the classification of our Expanded Polystyrene Insulation (FRA).

(This covers both our sheet insulation and loose-fill cavity wall insulation.)


Samples of different depths of expanded polystyrene containing flame retardant additive were tested, achieving the following result: Euroclass C-s1-d0* (on depths of 20mm-200mm)

Fire Testing in action, in Exova's laboratory:


Click HERE and HERE to view the Fire Test Reports in full.


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Polystyrene Insulation Guidance

Care must be taken when installing PVC cables, to ensure that they do not come into contact with polystyrene insulation.

A chemical reaction takes place between the PVC sheath and the polystyrene, resulting in a migration of polymers with the cable, known as 'marring'.

WE provide delivery to the UK Mainland from Monday to Friday

DELIVERY INSTRUCTIONS:
In the unlikely event that your goods arrive damaged, DO NOT ACCEPT DELIVERY the goods will be returned to us where a replacement can be despatched or a refund issued. If the goods are accepted damaged, no replacement or refund will be issued. Also ensure that someone is available at the given delivery address to sign for the goods. Please be clear on these points before ordering.

Please note that the delivery cost is to
MAINLAND UK ONLY
(excluding Scottish Highlands & Islands).
If you are unsure whether any of the delivery options below are applicable to you please contact us directly.
DELIVERY RESTRICTIONS:
Please contact us if you live in the following areas, as an additional surcharge is required for delivery to the following postcodes:

  • Scottish Highlands & Islands - AB31-38, AB41-56, FK17-21, G83, HS1-9, IM (ALL), IV (ALL), KA27-28, KW0-17, PA20-78, PH15-99, PO30-41, ZE (ALL)
  • Scottish Islands - 2-5 day delivery
  • Northern Ireland - BT (ALL)
  • Please note: it may not be possible to post larger products to the above areas, due to delivery restrictions. Please contact us if you are unsure on 01977 519339.

    International deliveries should enquire first before placing an order.
    Please note that we classify the Channel Islands as an International destination.

    Your direct contact at Custompac is Kathy Ellis who can be reached on 01977 519339 or email
    k.ellis@custompac.co.uk

    CAN I COLLECT? 
    Yes, it’s not a problem to collect. Find us HERE. Please note that collections are only possible during normal working hours: 
    Monday-Thursday: 08:00-17:00
    Friday: 08:00-15:30
    Saturday & Sunday: Closed