Construction foam tape specialists, ISO Chemie, say improved compensation of differential movement in timber frame structures is provided by its ISO-BLOCO T-Max.
Designed for multi-storey timber frame structures, ISO BLOCO T-Max compensates for the large amount of differential movement which can occur between the internal timber wall and roofs and the external brick or block work.
Engineered to provide 39 mm of movement and ensure the joint remains weather tight to a minimum of 450 Pa, equivalent to Storm Force 10 on the Beaufort scale, the tape is the best in class for movement accommodation.
It also offers a highly effective ‘fit and forget’ perimeter weather and air tightness seal for windows, particularly at heads, cills and under the roof eaves, while remaining permeable to trapped water and water vapour – in the same way a breathable style material works on a building facade.
Self-adhesive T-Max can also be used to seal larger joints ranging in width from 11mm to 50mm providing excellent thermal and acoustic insulation properties. It can accommodate a temperature range of -30° to +90° and is impermeable to driving rain with a minimum of 450 Pa.
Once installed, timber framed buildings are better protected from elemental factors like wind, dust and moisture ingress by accommodating the changes in structural movement caused by environmental, cyclical and settlement factors. The product remains permanently flexible throughout its life expectancy of 25 years plus.
ISO-BLOCO T-Max premium edition has a vapour diffusion sd value of < 0.5 m and high-performance thermal conductivity value λ of 0.052 W/m K together with an air permeability coefficient a of <0.1m³/[h.m.(daPa) n].