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Visqueen Ultimate Radonblok 400Visqueen Ultimate Radonblok 400

Visqueen Ultimate RadonBlok 400 – 4m x 25m

Brand: Visqueen
Product Code: RS072663
In Stock

Visqueen Ultimate RadonBlok 400 is a flexible 0.4mm thick high performance co-polymer thermoplastic membrane used to prevent the ingress of radon in both basic and full radon protection areas.

£319.43 incl. VAT
£266.19 excl. VAT

Qty:

Visqueen Ultimate RadonBlok 400 is a flexible 0.4mm thick high performance co-polymer thermoplastic membrane. The product is purple in colour and supplied 4m x 25m in centre fold format. 

Features & benefits 

  • Agrement certified – third party accreditation 
  • Conforms to BR 211:2015 – industry guidance for radon protection 
  • Robust – resistant to on site damage 
  • Flexible – easy to detail and install on site 
  • Enhanced polymer technology – performs in cold weather 
  • Multi functional – also acts as a damp proof membrane 
  • Dual jointing methods – lap joints can be taped or heat welded
Property Test Method Units Compliance Criteria Result
Length BS EN 1848-2 m  -10%/+10%  25
Width BS 1848-2 m -2.5%/+2.5% 25
Thickness BS 1849-2 mm -12%/+12% 0.4
Tensile Strength – MD BS EN12311 N/mm² >MLV 15
Tensile Strength – CD BS EN12311 N/mm² >MLV 15
Tensile Elongation – MD BS EN12311 EN EN12311 >MLV 400
Tensile Elongation – CD BS EN12311 % >MLV 400
Joint Strength BS EN12317-2 N >MLV 250
Watertightness 2kPa for 24 hours BS EN 1928 – Pass/Fail Pass
Resistance to impact BS EN 12691 mm MDV >200
Durability (artifcial ageing) BS EN 1296 and EN 1928 – Pass/Fail Pass
Durability chemical resistance BS EN 1847 – Pass/Fail Pass
Resistance to tearing (nail shank) MD BS EN 12310-1 N MDV 215
Resistance to tearing (nail shank) CD BS EN 12310-1 N MDV 230
Water vapour transmission – resistance BS EN 1931 MNs/g MDV 1193
Water vapour transmission – permeability BS EN 1931 g/m²/d MDV 0.12
Diffusion equivalent air layer thickness BS EN 1931 m MDV 160
Low temperature flexibility BS EN 495-5 °C Pass/Fail -25°C
Radon permeability SP Test Method m²/s MDV 7.5×10¯¹²
Visible defects BS EN 1850-2 – Pass/Fail Pass
Reaction to fire BS EN 13501-1 Class MDV F

Please see our our Delivery policy page for full details of our delivery terms and conditions, including information on exclusions, geographical restrictions, third parties, and failed deliveries.

1. Delivery Timescales

We will endeavour to deliver all orders within 1-3 working days (subject to geographical restrictions). Please note, where delivery lead-times for individual orders may be subject to change, we will keep you informed directly by phone or email within 24 hours of your order being placed.

Deliveries will not be made on UK bank holidays, and in such cases will fall on the next working day.

Standard delivery hours are between 8am and 6pm, Monday to Friday. If you are not available to accept the delivery when it is attempted, then a failed delivery charge will be applied (see the Delivery page for full details)

2. Delivery Fee Structure:

All orders, excluding those containing products covered in section 3 below, will be subject to the below delivery fee structure:

  1. Total order weight is between 0kg and 10kg = £7.99 standard delivery fee
  2. Total order weight is between 10kg and 20kg = £12.99 standard delivery fee
  3. Total order weight is between 20kg and 75kg = £20 standard delivery fee
  4. Total order weight is 75kg and above = £60 large order delivery fee
  5. Total order value exceeds £500 (regardless of weight) = Free delivery

3. Exclusions

The delivery fees detailed above apply to all orders, excluding:

  1. Orders containing insulation will be charged at £60 per pallet (10 units per pallet). Please get in touch with us directly for pricing and ordering.
  2. Orders containing protection boards: A large order delivery fee of £60 will be applied.
  3. Orders containing membranes of two metres wide and above: The delivery fee will be calculated as a price per unit*.
Code Description Weight (kg) Delivery Fee Per Unit
Multiple All membrane products with a width of two metres and above Varied £20
M3 Newton CDM 508 Mesh 29.26 £25
M2 Newton CDM 508 eco Floor 41.3 £30
M4 Newton CDM 520 eco Floor 37.62 £40

*Please note that, for orders containing membranes of two metres wide and above:

  1. Once the total order weight exceeds 75kg then the £60 large order fee will automatically be applied
  2. Once the total order value exceeds £500 then the free delivery policy will automatically be applied

4. Geographical Areas

The above delivery fees apply to all postcodes in mainland England, Wales and Scotland.

For deliveries to Ireland, Northern Ireland, the Channel Islands, the Scottish Isles, and any international orders please get in touch with the BaseTec team directly by email or phone for a custom delivery price. Standard delivery timescales do not apply to these areas and will be advised on request.

Additional charges, including customs fees, duties, or taxes may apply for international orders.

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