Roof transition, rectangular, for warm roof DDEIAFW

Roof transition for insulated flat roof comprising an insulated double-walled duct with fixed base plate (GP) a sliding top plate (TP).
Rain collar (RKE) optional at extra charge.

GP dimensions insulated inside A x B + 400,
insulated outside A x B + 500,
TP dimension insulated inside A x B + 480,
outside insulated A x B + 580.