Your building and location can help determine which drain will fit your roof needs.
Flat roof drain sections detail.
Along with the benefits of a flat roof come unique challenges.
A flat roof may use interior drains to collect water from the centre of the roof.
Some pipes are too small to handle the volume of the water.
Adaptable to flat roofs used for recreational purposes balconies area ways plazas sun decks floors and corridors.
Most flat roofs suffer from poor drain locations or drain levels that are high.
Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs.
Flat roof drain types.
Flat roofs collect an abundance of debris that.
The regular flange will have a minimum 4 width with a 3 16 lip at drain body.
Flat roof drainage options.
There are three types of drain systems commonly used on flat roofs.
Download free high quality cad drawings blocks and details of roof drains organized by masterformat.
Keep in mind all flat roofs have a slope of between five and 15 degrees to allow water to flow into drain systems such as eaves drainage holes or outlets.
Of course the best designed flat roof has the correct amount of pitch to drain the water off naturally.
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.
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.
On many occasions drains are too high and water cannot flow off.
There are a few ways to make sure water drains away from the surface of a flat roof.
If there are branches that hang over your flat roof we recommend that you remove the debris from the roof and the gutters as often as you rake leaves or mow your lawns or yards the easiest way to remove debris from flat roofs and gutters is to use a handheld leaf blower.
When designing a roof it is essential to pay close attention to where the drains are.
Below are the five best roof drains for flat roofs.
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.
A gravity drainage system on a flat roof differs from the gutter system you find on residential roofs in two key ways.
There are roof coating products available if there isn t enough slant or slope to accomplish this.
