Frost Brochure Issue 03 - Catalog - Page 77
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Inverted Roof Assemblies - Flat Gratings
6
48 Min
85 Max
Ø330
200 SQ.
Ductile iron. Area drained: Based on
a head of 35mm and rainfall intensity
of 75mm per hour. For details of
accessories please see pages 84-88.
Note 1 - smaller outlet sizes 2” & 3”
available for threaded outlets.
158
Rain water outlets with flat gratings
suited to inverted roof construction
where the waterproof membrane is
located above the roof deck but below
the insulation layer (diagram page 65).
Body and clamp: Cast iron. Grating:
4 BSP
Frost roof drain 200mm square grating with large sump body and threaded outlet
See Note 1
Part Number
Grating
Size
Outlet
Size
33.0354
£171.60
200 x 200
BSP 4
Deck Opening Area Drained
(mm)
(sq.m)
290
200
Loading
L15
Frost roof drain 200mm square grating with large sump body and spigot outlet
Part Number
Grating
Size
Outlet
Size
Deck Opening Area Drained
(mm)
(sq.m)
33.0351
£171.60
200 x 200
110
290
200
L15
33.0359
£178.30
200 x 200
163
290
215
L15
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77