New NAFS and CE mark certified windows and doors
Over the last two years, Polishinterior has designed and implemented 10 new products.
The aluminium windows, doors and sliding doors designed by Polishinterior meet the
parameters and are certified for the North American market. During the implementation
of the 10 new products, it was necessary to sign the legally required contracts for
the testing itself (confirming that the required parameters achieved during the project were met)
as well as for the corresponding labelling. During the course of the programme, we signed
a contract for NAFS testing with the LabTest Cert laboratory in Vanvouver (Canada).
As a result of this contract, the laboratory carried out a number of measurements and
calculations which are included in the citations in this study. All calculations were
made in accordance with american market standards such as:

– AAMA/WDMA/CSA 101/1.S.2/A440-17 North American Fenestration Standard/Specification for Windows, Doors and Skylights
– CSA A440.2:22
– CSA A440S1:19
– NFRC 100-2020
We have obtained data on parameters such as
-PG (Performance Grade)
-ER (Energy Rating)
-SHGC (Solar Heat Gain Coefficient)
-VT ( Visible Transmittance ),
-U-factor[BTU/h-ft2-°F]
-Air leakage [L/s – m2].

CE certification for EU market were tested succesfully according to

EN 14351-1+A2:2016 for test methods:
– air permeability
– water tightness
– resistance to wind load