TeploTie improves thermal efficiency of highly insulated cavity walls

(09/05/2008)

MagmaTech Ltd has developed a range of thermally insulating composite wall ties "TeploTie". The ties replace standard stainless steel wall ties which act as thermal bridges in cavity walls. TeploTie improves the U value of walls by up to 10% (the effect is even greater in wide cavity / highly insulated walls) and thereby reduces heat loss and energy wastage.

TeploTie is currently being used in its first UK projects, which are utilising the thermally insulating properties of TeploTie to improve the thermal efficiency of highly insulated cavity walls. The architects, clients and contractors involved are aiming to push down wall U-values to create highly energy efficient houses using traditional masonry construction.

The Dumfriesshire project is with dense concrete block walls, a 200mm cavity fully filled with two 100mm glass wool batts and TeploTies (325mm long ties). The calculated1 U-Value for the walls is 0.18 W/(m2 K). The same walls with stainless steel wall ties would have a U-Value of 0.21 W/(m2 K) (~17% less thermally efficient).

The Pembrokeshire project is also with dense concrete block walls, a 300mm wide cavity fully filled with three 100mm mineral wool batts and TeploTies (425mm long ties). The calculated1 U-Value for the walls is 0.12 W/(m2 K). The same walls with stainless steel wall ties would have a U-Value of 0.17 W/(m2 K) (~42% less thermally efficient).

Related categories:  Commercial and offices applications   Energy Conservation   Insulation   Residential applications 

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