New backup preventer roof drain in IGOM CE is one of the best means of connecting a roof systems for rain water pipes onto flat roofs, gutters of various pitch, compluvia of industrial sheds and industrial buildings. It is particularly suitable for application with all kinds bituminous membranes APP SBS and spread bitumen. The units consists of a slightly conical cylinder with a wide base giving an ample anchorage to its ribbed surface for the membrane. The conical cylinder is fitted with one or two round flanges which, when pushed solidly home into the pipe, ensure that there is no backing up of the water as these form a perfect seal with the inner surface of the pipe itself.
This therefore avoids also the passage of water vapour and water backing up into the insulation materials or under the waterproofing membranes causing serious damage.
The unit is made out of IGOM synthetic rubber which has excellent physical and chemical characteristics and can fulfil all the elastic characteristics required of such an article. The especially formulated IGOM has extremely high resistance to breakdown by sunlight, ozone, and other chemical or atmospheric agents. The unit can be used in a wide range of temperatures giving high flexibility in the low temperature range as well as stability in time thanks to its excellent mechanical characteristics. Thanks to their high quality the materials used will ensure perfect performance through the years.
These roof drains guarantee an increase of 45% of the discharge
capacity over those having the entrance and the stem pipe of the same diameter. These roof drains can be fitted before the drain pipes application. A leaf/gravel guard can be fitted into the conical recess thus ensuring that the roof drain will function at the maximum of capacity of the drainpipes themselves. The leaf/gravel guard has a diameter at its base 200 mm. and 180 at its top; it is fitted to a toothed ring which has 3 steps thus
assuring good anchorage and height adjustment should the thickness of the waterproofing vary.
INSALLATION MANUAL