R-value calculations measuring the thermal resistance of the thermally broken profiles as they went through design were a key part of the process that APL (Architectural Profiles Ltd) carried out prior to release.

In the average New Zealand home, space heating accounts for about a third of total energy use. The new window range, pitched at mainstream residential projects, can lead to lower heating requirements and therefore lower domestic energy use.

The comprehensive new Altherm Residential Thermal Heart suite (which is designed for use with double glazing) delivers a 130% improvement in thermal performance  compared with non-thermally broken single glazed products. When compared to non-thermally broken double glazed frames the improvement is a handy 35%.

A potential advantage for specifiers also exists. When large areas of glass are desired for exploiting views the thermal break in every profile allows designers additional flexibility in achieving Building Code compliance from a thermal viewpoint.

To view the new Altherm Residential Thermal Heart brochure click here