Our NordMax21® kiri variety is robust against basidiomycetes.

Tests have officially confirmed that the NordMax21® kiri variety is particularly robust against fungal decay. This is the conclusion of the Brandenburg Materials Testing Institute (MPA). The test in accordance with EN 113-2 (2020) and EN 350 (2016) returned a 1v natural durability of the outer heartwood.

Basidiomyces effects were investigated, according to standard specifications, on 60 samples of our wood. 20 test pieces of beech were used as a reference.

The result was kiri being very well suited for façade cladding.

The MPA demonstrated scientifically what Asians have known about paulownia for centuries – and what we ourselves found out in our own test series in Tönisvorst (see photo).

Our kiri is therefore ideally suited for façade cladding and other exterior applications. By comparison, the average durability of common façade timber species such as larch, Douglas fir and spruce is 3 to 4, according to the German Timber Trade Association.

Do you want to know more about kiri’s durability?

We will be happy to help and look forward to your enquiry