| Roof Drains-
for efficient internal drainage of water from the roof surface. Roof Drains are
an effective year-round solution to removing water from the roof surface in all
weather and all seasons. Interior Roof Drains have the advantage over gutters
and downspouts because interior Roof Drains are maintained at the interior
building temperature and are far less likely to freeze and back up in harsh
northern climates. With the advent of sloped roof decks and tapered
insulations, it has also become necessary to include Overflow Roof Drains to
relieve dangerous overloading of the structural system caused by heavy ponding
water. How many Roof Drains do I need? See the Roof Drain Calculator |