UNIPUR AB and WAB
UNIPUR AB is a self-supporting roof panel with a 19mm water-resistant, fire–retardant perforated chipboard (standard length 3000mm or 4100mm), glued and nailed to three timber rafters.
Visible horizontal joints should be carefully positioned. Acoustic perforations are 5mm diameter and 8 mm deep. The distance between each perforation is 15mm.
-The space between the rafters is filled with polyisocyanurate (PIR).
-Rafter depth depends on insulation thickness
-The treated rafters are glued and fixed with 6 galvanized nails per metre