Kingspan TW50 Thermawall │At Low Wholesale Prices

Kingspan TW50

TW50 insulation is designed for partial-fill cavity walls, leaving a residual cavity in front of the insulation as required by building regulations. Its foil facings help reduce radiant heat transfer across the cavity.

What is Kingspan TW50 insulation?

Kingspan Thermawall TW50 is an insulation board that fits into the cavity between the inner block leaf and outer brick leaf. It is rigid and designed to be held in place using wall ties or retaining clips. The core of TW50 is made from high‑performance polyisocyanurate (PIR) foam. Because it is fibre-free and dense, it does not sag, and it resists moisture effectively.

Both sides of the board are covered with a thin foil-facing (aluminium composite) that reflects radiant heat and enhances the board’s insulation.

TW50 Kingspan insulation effectively slows heat transfer, thanks to its low conductivity (0.022 W/m·K). It is designed to perform for the building’s lifetime under normal conditions.

What is TW50 insulation used for?

Kingspan PIR TW50 is mainly used for cavity walls.

It is also used:

To insulate around openings where appropriate, although cavity closers may also be required.
In new builds or renovations. It works well on brand-new walls and the upgrading of older cavity walls.

Benefits of TW50 Kingspan insulation

Here are some benefits of installing TW50:

Locks heat in and prevents draughts.
Water-resistant, so walls stay dry.
Cuts and fits easily around corners and edges.
Thin TW50 boards can be scored and snapped to size.
Stays stable and strong for years.
Helps save on energy bills.
Works for both new builds and renovations.

Why choose our TW50 PIR insulation?

Here’s why builders turn to Insulation Wholesale for TW50 PIR boards:

Genuine Kingspan quality – Get the real TW50 board, trusted for long-lasting performance.
Fast UK delivery – We ensure your order arrives quickly.
A variety of thicknesses – are available for different cavity wall specifications.
Easy to handle and fit – Lightweight boards that are easy to cut, position, and secure with wall ties.
Reliable thermal and moisture protection – Helps limit heat loss and prevent damp.
Competitive prices – Excellent value for single packs and bulk orders.

At Insulation Wholesale, you can purchase Kingspan TW50 at low wholesale prices with fast delivery for most of items within 2-5 days. Competitive rates guaranteed.

FAQ

Where to buy Kingspan TW50?

How much is TW50 insulation?

How to cut TW50 insulation?

Showing all 6

Products in Kingspan TW50

In stock only

100mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 5 (2.70m2)

100mm Kingspan Thermawall TW50 is a high performance insulation with thermal conductivity of 0.022 W/mK. Therma is a range of PIR insulation available in a range of thicknesses.

£62.98£75.58 Ex VATInc VAT
£23.33£28.00 Per M2 Add to cart
40mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 12 (6.48m2)

40mm Kingspan Thermawall TW50 is a high performance insulation with thermal conductivity of 0.022 W/mK. Therma is a range of PIR insulation available in a range of thicknesses.

£83.29£99.95 Ex VATInc VAT
£12.85£15.42 Per M2 Add to cart
50mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 10 (5.40m2)

50mm Kingspan Thermawall TW50 is a high performance insulation with thermal conductivity of 0.022 W/mK. Therma is a range of PIR insulation available in a range of thicknesses.

Non-refundable.

£68.99£82.79 Ex VATInc VAT
£12.78£15.34 Per M2 Add to cart
60mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 8 (4.32m2)

60mm Kingspan Thermawall TW50 is a high performance insulation with thermal conductivity of 0.022 W/mK. Therma is a range of PIR insulation available in a range of thicknesses.

£67.22£80.66 Ex VATInc VAT
£15.56£18.67 Per M2 Add to cart
70mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 6 (3.24m2)

70mm Kingspan Thermawall TW50 is a high performance insulation with thermal conductivity of 0.022 W/mK. Therma is a range of PIR insulation available in a range of thicknesses.

£58.28£69.94 Ex VATInc VAT
£17.99£21.59 Per M2 Add to cart
75mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 6 (3.24m2)

75mm Kingspan Thermawall TW50 is a high performance insulation with thermal conductivity of 0.022 W/mK. Therma is a range of PIR insulation available in a range of thicknesses.

£68.55£82.26 Ex VATInc VAT
£21.16£25.39 Per M2 Add to cart

Kingspan TW50

What is Kingspan TW50 insulation?

What is TW50 insulation used for?

Benefits of TW50 Kingspan insulation

Why choose our TW50 PIR insulation?

FAQ

Where to buy Kingspan TW50?

How much is TW50 insulation?

How to cut TW50 insulation?

Products in Kingspan TW50

100mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 5 (2.70m2)

40mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 12 (6.48m2)

50mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 10 (5.40m2)

60mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 8 (4.32m2)

70mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 6 (3.24m2)

75mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 6 (3.24m2)