Roof Drain Disconections

Proper roof drain connection.

Roof drain disconections.

A large source of clear water within the combined sewer is from rain that falls on your roof and is collected by downspouts that are directly connected to the sewer system. Shop for roof drains at ferguson. Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products. Ipc provides four steps to size the roof drains on a building.

Brittle tar will crack and leaks will occur. Consider combining elbows and extensions to send water to the side or front yard or to. Getting water off a building s roof is important but how do you know what size drain to use to provide adequate drainage. Contact an outside sewer and water contractor to evaluate the site and design a plan for disconnecting from the sanitary sewer and connecting to the storm drain in the street.

Property owners need to disconnect these prohibited connections or be willing to pay for future treatment plant expansions. Roof drains must be firmly secured to the roof with an underdeck clamp otherwise due to snow loads rain loads and reg ular expansion and contraction the drain will work in and out of the roofing causing roofing membranes to flex and fail. Determine 100 year 1 hour rainfall rate used for location of building. Using tools from the international plumbing code ipc it s not that hard.

Depth of excavation utilities present storm drain access storm drain main location in relation to building traffic concerns soil conditions etc. Illegal roof drains sump pumps and foundation drains connected to the city s sanitary sewer system sends groundwater to the sewer treatment plant consuming expensive wastewater treatment capacity. For example to drain 500 square feet of rooftop there should be at least 50 square feet of landscape. Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs.

You may have more than one option for directing each downspout. Improper roof drain connection why is roof drain disconnection important to you. Smith carefully designs and manufactures a full line of roof drains deck drains scupper drains promenade and parking area drains and more to satisfy both the artistic eye of the architect and the calculating mind of the engineer. Installation charge will vary depending on work site conditions.

During rainstorms this additional clear water can overwhelm sewer pipes and mmsd s treatment plants which can lead to street flooding basement sewage backups and sewage overflows directly into our neighboring waterways.