For Water On The Roof

While this is a normal aspect of roofing and.

For water on the roof.

I have water running off the side of my roof as evidenced by the mud splashed up on the side of my house and a water channel in my flower bed below. There are times when it rains especially during big storms that water cascades off of a roof like a waterfall. This means that once the rain stops you have about 2 days to get rid of the standing water or puddles that are on the roof. Ponding water is known in the roofing community as water that stands in a puddle on the roof for more than 48 hours at a time.

The roof is sloped toward the scuppers and water simply drains out through the scuppers. Can i install the rain diverter on the side of a roof and if i do how do i get the water back into the gutter. Ponding water might not be an immediate threat but if it is allowed to persist over time that water can begin to wear on the roofing membrane. A scupper may drain into a downspout on the exterior of the building or it may have an extended chute or pipe that directs a stream of water away from the building.

According to the national roofing contractors association pooled water in excess of 48 hours can start to become problematic. How to redirect rain off a roof. To resolve ponding before it damages the roof determine the cause of the ponding and select the appropriate solution. For example acrylic coatings re emulsify in water resulting in complete failure of the product in places of the roof where water stagnates.

After the 2 days the water is going to start sinking into the roof system. If water remains on the roof system after 48 hours consider it an issue that could lead to larger problems requiring costly repairs. Crushed insulation causing low spots. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen.