Kingspan Thermawall TW50 Cavity Wall Board

Kingspan Thermawall TW50 Cavity Wall Insulation Board – 1200mm x 450mm

 Data Sheet

Kingspan Thermawall TW50 is a high-performance partial fill cavity wall insulation board designed to improve thermal efficiency in masonry cavity wall constructions. Manufactured with a rigid thermoset PIR insulation core and faced on both sides with a low emissivity composite foil, TW50 helps deliver excellent thermal performance while offering good resistance to moisture and water vapour.

This Kingspan cavity wall insulation is ideal for partially filled cavity walls, helping create a dependable barrier against rain penetration while maintaining strong insulating performance. Thanks to its low thermal conductivity and moisture-resistant properties, Kingspan TW50 is a popular choice for builders, contractors, and developers looking for reliable PIR insulation boards for wall applications.

Whether you are working on a new build or a renovation project, Kingspan Thermawall TW50 insulation boards provide an effective solution for improving energy efficiency and helping meet modern building performance requirements.

Key Features

• High-performance partial fill cavity wall insulation

• Rigid PIR insulation board

• Low emissivity composite foil facing on both sides

• Excellent thermal insulation performance

• Helps reduce heat loss through cavity walls

• Moisture-resistant with low water vapour permeability

• Suitable for use in masonry cavity wall applications

• Board size: 1200mm x 450mm

Pack Sizes

Please note:

• Sold as full packs only

• We do not split packs

• Please enquire before ordering due to possible long lead times from Kingspan

• Lead times may sometimes be around 10–14 working days