Frost Brochure Issue 03 - Catalog - Page 75
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frostdrainage.com
Call
01420 555572
Cold Roof Assemblies - Domed Gratings
Domed rain water outlets suited to cold
roof construction where the waterproof
membrane is located on top of the
roof deck (diagram page 67). Body and
clamp: Aluminium. Dome: Aluminium
as detailed. Analytical 昀氀ow rate: Litres/
second based on a head of 35mm. For
details of accessories please see pages
pages 82-85.
Note 1 - Reducing bushes can be
used on threaded outlets to convert
to 2” & 3”.
Frost Aluminium Cold Roof drain assembly - 昀椀xed dome 220mm circular, medium sump
body with clamp, vertical threaded outlet
See Note 1
Part Number
Outlet Size
Flow Rate
(l/s)
34.0034
BSP 4
10.7
34.0073
BSP 3
5
Also available in cast iron
Frost Aluminium Cold Roof drain assembly - 昀椀xed dome 220mm circular, medium sump
body with clamp, vertical 400mm spigot outlet
Part Number
Outlet Size
Flow Rate
(l/s)
34.0031
100mm
10.7
34.0077
75mm
5
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