The NBT Masonry Pavaclad System is for insulating masonry buildings which are to be externally finished with any type of cladding including timber boards or shingles, tile, terracotta claddings, metal sheet etc.

NBT Pavaclad systems use woodfibre boards over the outside of the building in a continuous layer, thus providing an unbridged thermal shell, which is highly breathable.

Mineral regularising coats are provided if required for the outside of the wall, along with a range of fixings, tapes and rails. Mineral plasters and environmental paints can also be provided for the inside of the building.

Existing buildings: NBT Diffutherm systems are highly vapour open and hygroscopic making them very suitable for the thermal upgrading of existing solid wall buildings as well as brick-infilled traditional timber frames, all of which need to breathe.

They can also be used with cavity constructions New Masonry walls: NBT Diffutherm systems can be used with both new solid wall and cavity walls.

• Excellent thermal performance, with reduced thermal bridging and excellent Y (psi) values
• Highly vapour open and hygroscopic system ensuring fully breathing and dry walling, with reduced risk of damp and interstitial moisture.
• Excellent acoustic performance, increasing flanking sound protection
• Increased overheating protection
• Simple, robust detailing with all system components
• Full design and site support from NBT
• Tried and tested system, fully certified

Woodfibre boards are non-toxic, contain over 95% waste wood from sustainable forests, and are carbon negative, and lock up 1.2 tonnes of CO2 for every tonne of boards produced.

They are BREEAM Green Guide, and WRAP assessed.

• Insulation boards: Interlocking, waterproof Isolair boards (22, 35mm) and Pavatherm Plus boards (60, 80, 100mm) and square edged backing insulation Pavatherm boards (20 to 100mm).
• Fixings, tracks and tapes: Insulated screw fixings, along with starter tracks, and sealing tapes
• Plasters and paints: Breathing mineral based (including clay) plasters and environmental paints for internal upgrading of walls if required.

Design support: Full design support including drawings review, assistance with detailing, thermal bridging (New Part L) and interstitial moisture calculations.
Training: Either at NBT or on site for applicators, site managers etc

Site Support: NBT will assist on site, giving advice on technical, application and quality issues.

Approved Applicators: NBT have a list of trained and approved applicators for the various systems processes.

Download information sheet on this system here.

Download technical manual on this system here.