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Technitherm

Third party certifications:
  • BBA Agrément Certificate

    Certificate type

Isothane Ltd

Cavity wall insulation and stabilization system.

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+44 (0)1254 872555 www.isothane.com
Application

Used for the stabilization of masonry cavity walls by strongly adhering the inner and outer leaves together and as such is a convenient and cost effective alternative to metal cavity tie replacement. In addition, as a consequence of the excellent thermal insulation properties of the foam, U-values of 0.33 W/m²K are achieved in a 65 mm cavity of standard construction, and 0.22 W/m²K in a 100 mm cavity of standard construction.

Description

Technitherm is a polyurethane foam used for thermal insulation and stabilization. It can be used in new buildings and retrofit properties as insulation and stabilization for cavity walls. The product is injected into masonry cavities leaving a seamless rigid foam layer filling the cavity width. The product adheres to both inner and outer leaves stabilizing the structure in the case of wall tie failure. The product is a totally CFC and HCFC free two component, 1:1 mix ratio rigid polyurethane foam which complies with the requirements of BS 7457.

Applications:

Used for the stabilization of masonry cavity walls by strongly adhering the inner and outer leaves together and as such is a convenient and cost effective alternative to metal cavity tie replacement. In addition, as a consequence of the excellent thermal insulation properties of the foam, U-values of 0.33 W/m²K are achieved in a 65 mm cavity of standard construction, and 0.22 W/m²K in a 100 mm cavity of standard construction.

General information
Specification data
Product Reference

Technitherm

Standard product features

Technical properties:

  • Thermal conductivity, aged, <80 mm thick (to BS EN ISO 13165): 0.028 W/mK.
  • Thermal conductivity, aged, 80-120 mm thick (to BS EN ISO 13165): 0.026 W/mK.
  • Thermal conductivity, aged, >120 mm thick (to BS EN ISO 13165): 0.025 W/mK.
  • Compressive strength – normal to major plane (50 mm cavity, BS 4370): 210 kPa.
  • Shear strength – parallel to major plane: (50 mm cavity, BS 4370): 241 kPa.
  • Dimensional stability linear change at 24 hrs at -15ºC (to BS 4370): 0.2/ 0/ 0.2% (L/ W/ T).
  • Dimensional stability linear change at 24 hrs at +70ºC (to BS 4370): 0.3/ 0.4/ 0.1% (L/ W/ T).
  • Water vapour permeability parallel to foam thickness (to BS 4370, maximum): 5.9 ng/ Pa/m².
  • Closed cell content (to BS 4370): 90%.
  • Burning characteristics (to BS 4735): Less than 40 mm.

Tensile adhesion to masonry (to BS EN 4757):

  • Aerated concrete: 51 kPa.
  • Brick: 155 kPa.
  • Breeze block: 166 kPa.

Appearance (to BS 4757):

Uniform, fine cell structure.

Density (to BS 4757):

42 kg/ m³.

Third party certifications

BBA Agrément Certificate

97/3426