Roof drain/ scuppers? - The Building Code Forum
2009年11月25日 · At one time an overflow scupper was required to be 3 times the area of the primary drain. I size scuppers based on the scupper being clogged (with branches, leaves, & other debris) up to the maximum ponding depth the roof is designed for (4" for a 20 PSF roof load), then going up another 4" or more to provide the necessary overflow area.
Are over flow scuppers required for scuppers that are primary roof ...
2020年8月22日 · CBC 1502.2 Secondary (emergency overflow) drains or scuppers. Where roof drains are required, secondary (emergency overflow) roof drains or scuppers shall be provided where the roof perimeter construction extends above the roof in such a manner that water will be entrapped if the primary drains allow buildup for any reason.
Overflow scupper size = width? - The Building Code Forum
2009年11月2日 · an independent secondary roof drainage system consisting of scuppers, standpipes, or roof drains shall be provided. Secondary roof drainage systems shall be sized in accordance with Section 1101.11.1 of this Code. Overflow drains shall be the same size as the roof drains with the inlet flow line two (2) inches (51 mm) above the low
Roof openings near FIREWALL - The Building Code Forum
2009年10月22日 · Can the roof expansion joint, if it is a roof opening, have a 2-hour Expansion Joint fire stop system and be in compliance? Another firewall, not extending above the roof, has a roof expansion joint between the firewall and another non-combustible wall. Both walls do not extend above the roof but stop at the roof deck.
Drainage Design for Re-Roofs in Florida - The Building Code Forum
2022年5月4日 · If the intent is no collapse, then the bottom of the scupper should be a maximum of 6" off the structural system (i.e slab, deck, etc.). For example, if there is a minimum of 7" of LWIC for R19, then the code has the bottom of the scupper at 9"... 7" + 2". So, if the roofing system fails, then the system is holding 9" of water instead of 6".
Scupper as primary storm drain? | The Building Code Forum
2015年4月6日 · I know it's allowed in residential applications. Is there a scenario where a scupper would be allowable as the primary system of roof drainage? In this case it's a very low one story building and we are looking at scuppering a smaller section of roof. There's plenty of non-paved area around the building to accommodate the water. Thanks! Paul
Roof Drains - Building or Plumbing Code - The Building Code Forum
2019年3月12日 · The inside opening for the roof drain shall not be obstructed by the roofing membrane material. I challenge you to find a manufacture that does not include a dome strainer with their roof drain. "Zurn Roof Drains are comprised of three basic components: a body (sump), a combination membrane flashing clamp/gravel guard, and a dome strainer."
Tying Roof Drains Into the Footer Drain
2009年10月16日 · R801.3 Roof drainage. In areas where expansive soils or collapsible soils are known to exist, all dwellings shall have a controlled method of water disposal from roofs that will collect and discharge roof drainage to the ground surface not less than 5 feet from foundation walls or to an approved drainage system. Not a good idea.
1015.6 Mechanical equipment, systems and devices.............and roof ...
2018年2月12日 · The devices shall be reevaluated for possible replacement when the entire roof covering is replaced. The devices shall be placed not more than 10 feet (3048 mm) on center along hip and ridge lines and placed not less than 10 feet (3048 mm) from the roof edge or open side of the walking surface.
Balcony Drainage - The Building Code Forum
2014年10月31日 · (9) Scupper openings shall be not less than 4 inches (102 mm) high and have a width equal to the circumference of the roof drain required for the area served, sized in accordance with Table 1101.12. For example, if your calc showed that a 3" diameter deck drain was adequate, the code-required equivalent size for a regular scupper would not ...