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Roof bases

A roof base is used when a ventilating duct passes through the roof. It is designed to fix a duct to the building construction. Its purpose is to transfer the pressure of the roof elements onto a roof construction, keep tight positioning of that elements (protecting from any displacement) and protection of an entrance passage to the building. Rectangular roof base [DSR] Circular roof base [DSD]

Description of parameters:A - width of passage ductB - length of passage duct C - width of external jacket D - length of external jacket L - total lengthQ1 - inlet frameQ2 - outlet frame Description of parameters:DN - diameter of passage pipe (muff dimension),C - width of

cxd

axb

l external jacket'D - length of external jacket,L - total length (up to 3000 mm)

C x D

DN

l

26