The top is trimmed to form a tight weatherproof collar around the penetration and the base is formed with a series of concentric rings to the underside and a malleable stiffener of aluminium which is dressed to conform to the shape of the roofing profile.
Flue flashing for corrugated roof nz.
A boot flashing is a proprietary epdm flashing designed to weatherproof cylindrical penetrations protruding from a roof or wall.
Chimney flashing plates dia to suite flue pipe spigot plate 200 s s 91 40 nzd chimney flashing plates dia to suite flue pipe spigot plate 250 s s.
Dektite epdm polymer flashing have been officially tested by the coal corporation of victoria australia and conform to all australian and uk standards on approved flue systems.
New zealand metal roofing manufacturers inc.
If building from new you need a minimum 10 degrees roof pitch for this detail if you wish to comply with e2 as1.
Chimney flashing round flue.
Roof flashings dektite soaker dektite soaker 245 358mm 265 50 nzd roof flashings dektite strip dektite flashing strip per m.
For a fuller explanation of this refer to the nz metal roof and wall cladding code of practice.
April 2012 nz metal roof and wall cladding code of practice table of contents v 2 2 page 3 table of contents 1 1 0 table of contents 2 0p erformance 3 0 construction load 4 0 d esign 5 0f lashings 6 0p enetrations 7 0i nstallation 8 0 roof drainage 9 0 plastic roof lighting 10 0 pressed metal tiles.
Epdm perfect for approved flues.
The roofing and cladding in accordance with generally acceptable practice by reference to as nzs 1170 2 2011 and or nzs 3604 2011.
Dektite standard pipe flashing suits flue diameters up to 450mm on corrugate 20º roof pitch dektite retrofit flashing suits flues up to 250mm diameter for 15º roof pitch dektite soaker flashing suits flues up to 610mm diameter for 25º roof pitch.
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If the flue is within 3 m horizontally of the roof apex the flue top must be at least 600 mm above the roof apex.
This ensures correct operation of the burner limits back draughts and prevents.
This result should be referenced to the wind load span design graphs.
If the flue is over 3 m from the roof apex the flue top must be 1 000 mm minimum above the roof and at least 3 m horizontally from the roof surface.
