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The roof membrane installed on the SBR is a polymethyl methacrylate (PMMA) membrane, which was liquid-applied and rolled on like paint. By using a liquid-applied membrane, the roof surface has no seams that could lend themselves to leaks on the roof. The SBR has four (4) roof drains and two (2) overflow pipes that direct rainwater to the basement cistern. The roof surface also has two (2) redundant overflow mechanisms called scuppers that can direct rainwater to the foot of the building in the extremely unlikely event that both overflow pipes fail. The SBR is not expected to overflow for over 100 years…
The roof membrane installed on the SBR is a polymethyl methacrylate (PMMA) membrane, which was liquid-applied and rolled on like paint. By using a liquid-applied membrane, the roof surface has no seams that could lend themselves to leaks on the roof. The SBR has four (4) roof drains and two (2) overflow pipes that direct rainwater to the basement cistern. The roof surface also has two (2) redundant overflow mechanisms called scuppers that can direct rainwater to the foot of the building in the extremely unlikely event that both overflow pipes fail. The SBR is not expected to overflow for over 100 years…


Roof-Leader-Set-Up-v1.PNG | Modulating Control Valves stop the flow of rainwater to the basement cistern when they are closed. Rainwater that spills into the emergency overflow pipe bypasses the valves, altogether. (Photo Source: CVC, 2023)
File:Roof-Leader-Set-Up-v1.PNG |thumb| Modulating Control Valves stop the flow of rainwater to the basement cistern when they are closed. Rainwater that spills into the emergency overflow pipe bypasses the valves, altogether. (Photo Source: CVC, 2023)


=='''Station 2 – Modulating Control Valves'''==
=='''Station 2 – Modulating Control Valves'''==
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