Surfaces and facades

External insulation of masonry facades

Over the past 50 years there has been an increased demand for indoor comfort and also reduced energy costs. Most of our old masonry buildings are built without insulation, either as solid walls, or with hollow walls where air acts as insulation. External insulation is a perfect method to obtain energy optimization.

Same aesthetics with better insulating properties

The cold masonry walls may be insulated either on the inside or on the outside wall. When insulating from the outside the issues with cold bridges are eliminated. The risks of changing the dew point in the wall and possible frost damages are also eliminated. Basically it involves applying render on an insulating board mounted on the existing surface. With careful planning even an old decorated wall may be insulated with ETICS, (External Thermal Insulation Composite System). For more than 50 years, these systems have been continuously developed and improved. Today, ETICS can be used for a great variety of buildings and constructions. 

Careful planning of details and aesthetics

 An ETICS system can be applied in thicknesses varying from 20mm to over 200mm, depending on the  insulating effect desired. Choice of thickness also depends on the façade itself, as aesthetical changes will be the result after such action. Most details in the façade will be hidden when insulating, and there are decisions regarding, for instance, how to handle run mouldings. Considerations regarding the roof, window sills and basement must also be planned and decided. Remounting mouldings and decorations is possible, although on façades without or with only a few decorations, a well planned ETICS might give a building its necessary face and energy lift. Preparing such a surface involves removing loose debris and window flashings. Damage to the substrate needs to be repaired accordingly. A new render is not necessary unless big deviations are detected. The insulating boards are then mounted mechanically and/or glued to the existing surface. Choice of insulating material is decided for each project depending on several factors. Mineral or organic based renders are then applied and finished with paint or fine render to copy the original look and surface texture.