What are boat scuppers for?
Boat scuppers are an important part of allowing the water on deck or in your cockpit to escape overboard – in addition to keeping debris from clogging your hose or thru hull.
How do you size a scupper?
The only unconditional guideline for scupper sizing provided by the code is that “scupper openings shall be not less than 4 inches (102 mm) in height and have a width that is equal to or greater than the circumference of a roof drain sized for the same roof area.”
What is a scupper box?
Scupper boxes are parts custom fabricated used to drain water from a roof through a wall. These parts are commonly used as an overflow protection device, acting as a extra drain on a determined roof.
What are self-bailing scupper holes on a kayak?
Kayak scupper holes are often found at the foot wells, in the cockpit or at the tank well. They are designed to be self-bailing, meaning they automatically drain any water coming in or flowing over the deck.
Should you plug scupper holes?
If you’re kayaking with a heavy load, you should plug in your scupper plugs before paddling. The extra weight will submerge your kayak further down, and water will rise from the holes. The scupper plugs will protect you from capsizing. In the summer, covering the scupper holes might not be a priority.
Why is it called a scupper?
A scupper guides the water away from a building. The origin of the word isn’t completely certain, but it might come from the old French word escopir, which means literally ‘to spit. ‘ And that’s what scuppers do. They spit rainwater away from a building.
How far apart should scuppers be?
Scuppers should be spaced no greater than 10 feet apart depending on the roof area drained.
How high should overflow scupper be?
Where you must drain through the wall with a scupper the overflow must be three times the required size of the roof drain and have a minimum height of 4″ and again be installed no more than 2″ above the roof low point. While you must provide the overflow it can not be connected to a downspout.
Where do you place scuppers?
Scuppers are drain openings placed in areas on the side of a roof for water drainage. A scupper can be placed through a side wall, or a parapet wall, or could be on a low area on the edge of a roof.