The importance of guttering in Hawaii’s tropical climate is of large concern when it comes to roofing and maintenance of a home or building. Preventing rain from dripping onto the eaves prevents rotting fascia lumber or spalling concrete. Installing properly sized guttering for the roof drainage provides a longer lifespan to the structure, as a whole. Directing water away from the building saves the exterior from future maintenance such as lumber, concrete and painting repairs.
Upper-level roofs without guttering will shed water onto lower roofs. This cascading waterfall affect will ruin lower roofing systems and cause the need for costly roofing scopes that would otherwise be unnecessary.
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Types of Guttering
There are two main types of recommended materials for guttering in Hawaii: aluminum and copper.
Sizes of Guttering
Most guttering comes in a design called a K-profile and is usually either 5 or 6 inches wide at the top, depending on the amount of drainage required. Copper guttering can also come in a half round profile.
Sizes of Downspouts
Downspouts are usually not to placed more than 40 feet away from each other. 40 feet is usually the maximum distance for proper sloping of the guttering. The aluminum downspouts are usually square style and are 2” x 3” (5” gutter) or 3” x 4” (6” gutter). Copper downspouts can come in a round profile and are usually 3” in diameter but can also be custom sized.
If your MRC Roofing consultant recommends a gutter option for your roof it is highly advised that you consider this option as it will save you maintenance repairs in the future. Concrete sidewalks, driveways and foundations will even be saved once the flow of water from the roof is controlled.
Typical Gutter Profiles:
- Seamless K-Profile (square)
- Seamless half-round
Typical Gutter Metals:
- Aluminum (brown or white)
Typical Gutter Widths:
Typical Downspout Sizes:
- 2” x 3” (square)
- 3” x 4” (square)
- 3” (round)
Contact your MRC Roofing consultant today to move forward with your full roofing envelope to include guttering.
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