Flat Roof Drain Section Detail

There are roof coating products available if there isn t enough slant or slope to accomplish this.

Flat roof drain section detail.

A flat roof may use interior drains to collect water from the centre of the roof. It is very critical to position drains for maximum effect. X 5 8 bolt brass alum. A gravity drainage system on a flat roof differs from the gutter system you find on residential roofs in two key ways.

There are three types of drain systems commonly used on flat roofs. Adaptable to flat roofs used for recreational purposes balconies area ways plazas sun decks floors and corridors. Most draining systems on flat roofs have a poor design or are not correctly installed. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.

When the dx flange is required on drains other than those shown in this section the prefix dx must be used with the figure number. This detail for cmu installation only. Your building and location can help determine which drain will fit your roof needs. These drains are like the drain at the bottom of your shower except that the roof drain has a larger strainer to protect it from debris.

Along with the benefits of a flat roof come unique challenges. Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs. The regular flange will have a minimum 4 width with a 3 16 lip at drain body. Downspout strap detail 1 4 dia.

The most critical of these issues is the flat roof drainage systems. There are three types of drain systems on a flat roof. Detail for attachment to metal panel siding or fascia. Alwitra flat roof details.

So often we find that inner drains are high on the roof causing water to pool around them. Of course the best designed flat roof has the correct amount of pitch to drain the water off naturally.