Thermal Break – The BEST Steel Building Insulation Investment You Can Make

When people are looking at Green buildings, Insulation investments, and Energy savings, they are often caught up in examining R values, vapour retarders, built up layers of fibreglass, and all sorts of large complex insulation packages.

While it is important to look at Insulation bulk, and R values, there is an often overlooked little detail that can save you a huge amount, for a tiny additional outlay. That option is a simple thermal break along the Roof perlins.

The largest source of heat loss in a steel building is from convection. The heat loss occurs through the roof perlins, which are typically exposed, or lightly insulated on the interior of the building. Being steel, the perlin carries the heat right through the Insulation barrier to the roof cladding, where the heat is dissipated to the outside air. Because the roof insulation is compressed between the roof cladding, and the perlin, there is a minimal thermal break at this point.

The solution is to purchase a proper thermal barrier, or thermal break, and install it when erecting the building. A manufacturer supplied thermal break is very simple. It is basically a composite material, about 3/8 of an inch thick, that is a heavy duty, but inexpensive insulator. It comes with countersunk screw holes, and teck screws to secure to the outside face of the perlins. When installed, it brings your roof insulation up to it’s full theoretical value, at a cost of a few cents per square ft. of building.

The benefits of a thermal break are as follows;

Reduce your conductive heat loss by as much as 40% in the most extreme conditions.

Significantly reduce the winter ice buildup on your roof and gutters.

Help to meet LEEDS certification.

Save thousands of dollars per year, for an initial outlay of hundreds.

Matthew Day

Building Consultant;

1-866-822-4022 ext: 351

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1 Response to “Thermal Break – The BEST Steel Building Insulation Investment You Can Make”


  1. 1 Roofing Contractor In Texas August 30, 2012 at 1:04 am

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