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You’ll find a reliable partner in NBT and its thermal performance solutions for the building envelope.

NBT are a leading distributor of thermal performance products and solutions that provide; thermal, moisture, acoustic and overheating control.

Our specification support helps you insure the right product specification on a given building type.

Successfully used on thousands of UK-based projects; NBT solutions are tried, tested and trusted by house builders, commercial developers, housing associations and local authorities.


Low level heat is needed to raise the internal temperature in winter. Insulation keeps this heat in. The sun produces high level heat which can lead to overheating in the summer. Conventional insulation, in structures such as roofs and timber frame buildings, can’t keep high level heat out. Pavatex® has thermal mass which ‘soaks up’ the heat from the sun helping to prevent summertime overheating.

Thermal performance

Good thermal performance is now prerequisite to any new build or renovation. However, breathability and overheating control must also be considered simultaneously to protect the integrity of the building fabric and insure that significant problems are not created.


Over 11½ litres of moisture are produced internally by the average household each day. The external shell of a building is much like a coat, it needs to keep the rain off, but like a GORE-TEX® jacket, it must not allow moisture, produced internally, to get trapped within the building fabric. It must let it out. Pavatex® is the GORE-TEX® of buildings.

Natural Building Technologies
The Hangar
Worminghall Road
HP18 9UL
United Kingdom

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