Materials’ certifications
The materials used for the construction of each prefabricated house are checked, thoroughly studied and are the ones that were used during the tests with the National Technical University of Athens. Find below all the certificates for the materials of the prefabricated houses.
Swedish timber type used for Kofinas company masonry
NTR-A treatment level for wall base beams

For the wall base beam, we use impregnated timber, NTR-A approved. According to the specifications, such timber is described as: “Wood in contact with the ground or fresh water or severely exposed to the weather; or if a wood component is inaccessible or where the consequences of failure will be particularly serious.”. This way, our company ensures the longevity of our constructions.
CE Declaration Performance of Screws ROTHOBLAAS HBS
The CE mark proves that the product has been tested and it meets all the European standards regarding the safety and protection of health and environment.
European technical approval of Screws ROTHOBLAAS HBS
CE Declaration Performance of Membranes ROTHOBLAAS TRASPIR
The CE mark proves that the product has been tested and it meets all the European standards regarding the safety and protection of health and environment.
CE Declaration Performance of Membranes ROTHOBLAAS VAPORVLIES
The CE mark proves that the product has been tested and it meets all the European standards regarding the safety and protection of health and environment.