3004346_2020_06_11.fm
Installing TGK and TGR roof ducts
Step
1
Make a hole in the roof, approx. 30 mm larger than the roof duct.
2
Loosen the overlying tile/roofing and push it up to make room for the cover.
PERFORM or lead cover
NB:
It is a good idea to bend the edge of the
applies only to
flashing (at the bottom and if appropriate, the
PERFORM
visible part of the sides) to ensure greater
strength/better form stability and a nicer finish.
See the pictures above.
3
Fit the roof duct carefully into the roof so the
cover is flush with the top of the tiles.
4
Fit the support bars to the roof duct, so that
the roof duct will be lifted approx. 5 mm when
the support bars have been attached to the
roofing beams. This ensures that all the
weight is taken by the support bars.
5
Roll out the cover material and knock it gently
into shape with a rubber hammer or sandbag.
If water travels from copper or bitumen onto
6
PERFORM, FlashSeal must be applied to the
PERFORM surface.
If you do not follow the instructions, the war-
ranty becomes void!
7
Replace the overlying tile/roofing over the cover.
Action
Zinc cover
Fit the roof duct carefully into the roof so the
cover is flush with the roofing material.
Fit the support bars to the roof duct, so that
the roof duct will be lifted approx. 1 mm when
the support bars have been attached to the
roofing beams. This ensures that all the
weight is taken by the support bars.
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