The German federal law DIN 4102-7 defines that hard roofing  should resist flying sparks and radiant heat in accordance with various requirements of building regulations in Germany.

Our products are tested (see pictures below) and offer you both: a hard roof and the ability to melt when the heat  is too much. Alphaglas® VLIES INSIDE additionally protects your buildings from the inside and the outside.

In the test below a fire from the outside is simulated. We passed this challenging test, our products are far more resistant than common multi-skin sheets.