What is a scupper in roofing?
What is a scupper in roofing?
Description: Scuppers are used to provide an outlet through parapet walls or gravel stops on flat and built-up roofs to allow drainage of excess water. They can be used in conjunction with gutters and downspouts to divert the flow to the desired location.
What is a scupper box?
Scuppers are tubes used to carry water from a roof through a wall and then down through the side of a building. Sometimes they are used as an overflow, providing an alternate drain in the event that the drain system should fail.
What are scuppers used for?
The history of ‘scuppers’ goes all the way back to some of the earliest seafaring trade ships. They learned that they needed holes on the ship’s deck so that water could drain when large waves came over the sides (gunwales) of the ship. This is the same principle used in kayaks.
Where do scuppers drain to?
Roof drains channel water through the deck of the roof into a piping system that carries water away, while a scupper allows water to drain through an opening in the side of the roof edge.
Should you plug scupper holes?
We do not recommend sealing your scupper holes completely. In fact it could cause your kayak to actually flood and become too heavy to paddle. A better option is a good fitting scupper plug that is easy to install and remove as needed and as conditions change.
How far apart should scuppers be?
To ensure optimum drainage of water, space each scupper no more than 10 feet apart along the roof or parapet wall.
How do scuppers reduce water damage?
If you’re looking to install a new system on your flat roof, scuppers can be one of the most affordable systems. Properly sized scuppers won’t clog with small sticks, leaves and other debris. Because they don’t drain water inside your building, there is little risk of leaking pipes causing interior water damage.
What is the point of scupper holes?
Scupper holes are intentional holes in sit-on-top kayaks, like fishing kayaks. It seems counter-intuitive to have holes in a boat, but they serve a couple important design purposes: They help give structural integrity to the kayak… They operate as a drain hole when you get water in your boat.
Why do kayaks have scupper holes?
A sit-on kayak is basically an air-filled plastic float and the scupper holes allow water to pass in and out of the kayak without allowing it to sink. With this design the paddler sits up off the water as well.
How do you know what size scupper to get?
- The roof drain is 5” diameter (D), so the circumference of the roof drain=πD =3.14×5=15.7” or about 16”.
- Scupper openings shall be not less than 4 inches.
- So, the scupper size is 4”highx16” wide.
How do I stop my scuppers from clogging?
Place tapered insulation around the open drain area to create a smooth transition between the drain and the roof. Install the scuppers using a clamping ring and clamping bolts. Install leaf strainers in the downspout and leaf guards over the gutter if not present.
How do you size scuppers?
Roof Scupper Size The only unconditional guideline for roof 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.”
Why do you need scupper plugs?
While the scupper holes are designed to allow water to drain from the deck, the scupper plugs can be used to prevent water from coming onto the deck from below. With sit-on-top kayaks, you may find that water will come into your vessel either from paddle splashes or waves and possibly from the scupper holes.
Should I plug the scupper holes in my kayak?
The average kayak has 6-8 scupper holes in various sections of the boat. Gene likes to keep the rear holes plugged because that’s where most of the weight is carried. Plugging them helps give the boat a bit of lift out of the water. It also keeps that area drier.
Do all kayaks have scupper holes?
For all safe kayaks, the standard number of scuppers is four holes. The holes are designed to ensure that water drains off the deck every time the kayak is at a standstill. Many kayaks are crafted with innovative hulls to ensure that safe-bailing can happen without the need for forward movement.
What are roof scuppers?
Scuppers provide a pathway for water to flow through parapet walls or any other raised edge around a roof, such as a gravel stop edge metal. Primary roof scuppers normally channel water off the roof into a conductor box that connects to a downspout or a gutter. Overflow roof scuppers will let the water run freely down the side of the building.
What is the recommended weight for the construction of scuppers?
The minimum recommended weight for the construction of scuppers is 16 oz. copper. Scuppers are fabricated with flanges on the roof side which extend 4″ onto the roof. Wood blocking is required under scuppers to provide a nailable surface.
How much copper do I need for a scupper spout?
The scupper spout is locked and soldered to the conductor head. All joints between scupper, conductor head, downspout, fascia and gravel stop are soldered. The minimum weight of copper suitable for conductor heads is 16 oz.
What is an overflow scupper?
Scuppers provide a pathway for water to flow through parapet walls or any other raised edge around a roof, such as a gravel stop edge metal. Primary scuppers normally channel water off the roof into a conductor box that connects to a downspout or a gutter. Overflow scuppers will let the water run freely down the side of the building.