Kingspan Thermawall TW50 50mm Rigid Insulation Board

Kingspan Thermawall TW50 50mm PIR is a high performance, rigid thermoset insulation board that is used for thermal insulation in partially filled cavity walls.


50 mm


Covers 0.54m2


£12.64 /

inc VAT


£10.54 /

ex VAT
Actual Area (sq m) 5.4
Total Price £56.89

Product Description

Kingspan Thermawall TW50 50mm PIR is a high performance, fibre-free, rigid thermoset insulation core with low emissivity foil facings which is ideal for the thermal insulation of partially filled cavity walls.

The product is resistant to moisture penetration, unaffected by air infiltration and manufactured with non-deleterious material. When correctly installed, Kingspan Thermawall TW50 50mm can have an indefinite life.

The product meets NHBC technical requirements when used with a 50mm residual cavity and is a popular solution among specifiers, contractors and installers.

  • Fast and easy installation
  • Thermal conductivity: 0.022 W/mK
  • Compressive strength: exceeds 140 kPa at 10% compression
  • Water vapour resistivity: >100 MNs/g
  • Fire rating (reaction to fire): Euroclass F
  • Resistant to solvents, fungi and rodents

Technical Specification

Area 5,40m2
Dimensions 1.2m x 0.45m x 50mm
Thickness 50mm

The information given here may vary and is partly based on information from our suppliers. It represents the prevailing level of expertise and is not binding in a legal sense. The compliance of legal requirements lies within the customers own responsibility.

You can find all of the information shown here on one of our product data sheets which are in a PDF format. You can download this below.

Technical Data Sheet
Product Data Sheet


On average, this item takes 2 to 3 working days to be delivered to a UK Mainland address.

Our delivery rates are calculated on an order value basis. All standard deliveries are delivered by couriers (company variable) and can be received up to 3 to 5 working days from order (6 working days if you order after 12.30pm on a weekday).

All available delivery options for this item can be selected at the check-out and if you order before 12pm Monday to Friday, your order will be processed the same day.

Need it quickly?

We may be able to deliver this item on a next day service, please contact us to arrange this prior to ordering.


You should never book fitters before you have received your goods, we cannot be held responsible for costs incurred by yourself as a result of delivery complications and/or delays.

Deliveries are palletised and heavy, therefore our delivery services are to kerb-side only – you will be responsible for moving the goods from the roadside to the property.

Shortly after placing your order, you will receive a delivery date confirmation email. This email will detail the day of delivery which can take place any time between 8am and 6pm. If you require a more accurate time slot, please contact us prior to ordering and we’ll do our best to assist you; this could be at an additional cost.

For full delivery details, including timescales and Terms & Conditions, please click here