As already stated before - modern windows require a certain fitting standard, to develop their full insulation performance. Take more attention to the installation work, to prevent an unwanted window change after a short period. A good window with proper fitting will last for 30 years and longer. Prevent the replacement of so called "future proof windows" after 10 years, caused by poor fitting standards
Concrete blocks and timber battens, as mostly used for the support of the door threshold in new builds, are old fashioned and inappropriate. They won´t fulfil the criterias for a permanent door support with thermal break.
Belgacoat Air Tight Paint is more than a standard layer for air tightness. Both versions passed a Radon test recently, which creates a serious alternative especially for Radon barrier strategies in existing houses.
Customised consultation for your individual requirement. We come to your site and develop the best strategy for air tightness and energy saving on-site. Because there´s always a difference between theory and reality.
Passive Houses and well insulated buildings do often require the installation of windows within the external insulation layer. A good installation strategy needs to be involved, e.g. to carry the load of the windows and prevent thermal bridging. Choose a certified and approved system instead of home-made solutions.
Another practicable solution for the air tight sealing of down light covers, socket boxes, television cable connections and more. The box creates a viable space for plenty of applications without removing to much insulation.