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PVC Roof Drainage System Parts U-shaped Channel for Drainage

PVC Roof Drainage System Parts U-shaped Channel for Drainage

Material: PVC plastic

Category: PVC Roof Drainage System

Nombre: PVC U-shaped Channel for Drainage

Size: Matching PVC gutter systems

Colors: White/customized

Forma: Customized

Longitud: According to client request

Característica: High temperature resistance, anti-aging, anti-oxidant

Servicio de procesamiento: Moulding,Cutting,Extruding

Temperatura de funcionamiento: -40-75°c

Solicitud:House roof/Resort/Hotel/Cabin

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1-About PVC Roof Drainage System

PVC Roof Drainage System is a system installed beneath the eaves to collect and direct rainwater away from the roof. It typically consists of gutter channels, downspouts, and mounting brackets. Made primarily from PVC (polyvinyl chloride)—sometimes referred to as “vinyl gutters”—these systems channel runoff from the roof into downspouts, preventing water from washing directly against walls or seeping into the building’s foundation. They can also be integrated with rain barrels to collect and store rainwater.

Lightweight and corrosion-resistant: Approximately 30% lighter than metal gutters, they are resistant to acids, alkalis, and saltwater. Unlike metal, they do not rust and generally require no painting or ongoing maintenance.
High impact resistance and toughness: They maintain good impact resistance even in low temperatures, capable of withstanding the pressure of leaning ladders or accumulated snow without easily denting or deforming. High-quality double-walled designs offer even greater structural strength.
Easy installation: The material is simple to cut using standard tools, and components typically feature snap-fit or interlocking connections, making them well-suited for DIY projects.
Asequible: Significantly lower in cost than aluminum or copper alternatives, they offer excellent value for money.
Wide range of specifications and colors: Common sizes include 5.2-inch and 7-inch (approximately 130mm and 160mm+) widths. Available in colors such as white, black, dark brown, and coffee, with options for custom lengths and thicknesses.

2-Custom PVC Roof Drainage System

Categorías	PVC Roof Drainage System and Parts
Material	High quality PVC Vinyl plastic
Marca	Tu LOGOTIPO
Color	White(custom color)
Tamaño/forma	Square round tube
Diameter	5.2″/7″/Custom
Longitud	De 1 a 4 metros o según solicitud del cliente.
Forma	Pipes
Servicio de procesamiento	Cutting, Molding
Tipo de modelado de plástico	Extrusión
Solicitud	Building Industry,decoration,house roof
Característica	High temperature resistance, anti-aging, anti-oxidant
Estándar	ISO 9001 ISO14001 ISO45001 metros cúbicos
Diseño	Personalizado según tu dibujo
Peso neto	Según el dibujo
OEM/ODM	Aceptar
Embalaje	Personalizado
Material de embalaje	Caja de cartón
Tamaño del embalaje	Embalaje personalizado
Envío	Para pequeñas cantidades, el envío tarda de 3 a 7 días por FedEx, UPS, DHL, TNT o EMS; para grandes cantidades, el envío se realiza por mar o aire.
Condiciones de pago	Transferencia bancaria, PayPal y Western Union
Proceso de dar un título	CE, CCC, CQC, ROHS
El tiempo de entrega	De 7 a 10 días para la fabricación del molde y el muestreo, de 7 a 30 días para la producción, dependiendo de la cantidad.

3. Propiedades físicas y químicas clave

Propiedad	Descripción
Material	Vinyl plastic
Rango de temperatura	-40°C-70°C
Common structures	K-style, square, half-round, and U-shaped gutters
Resistencia a los rayos UV	Need
Resistencia química	Its durability under extreme heat is inferior to that of metals; long-term exposure to sunlight may cause aging and deformation, so UV resistance should be a key consideration when selecting materials.
Service life	About 20-year

4-Applications of PVC Roof Drainage System

5-inch (approx. 125 mm): Suitable for villas and low-rise residences with eaves up to 15 meters in length; offers moderate drainage capacity.
7-inch (approx. 175 mm): Suitable for mid-rise buildings; provides a drainage capacity of approximately 10 liters per second.
80×100 mm rectangular downspout: Suitable for large commercial buildings or structures with expansive roof areas; offers a maximum drainage capacity of approximately 25 liters per second.

5-customized cases

6-Common PVC Roof Drainage System extrusion schemes

Cómo personalizar perfiles de extrusión de plástico

Acrylic pipe extrusion

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7-Preguntas frecuentes

What are the primary advantages of PVC Roof Drainage System ?

High corrosion resistance: PVC is naturally resistant to acid and alkali corrosion; it does not rust or oxidize like metal, making it especially suitable for coastal or industrial areas.
Lightweight: With a density of approximately 1.4 g/cm³—only one-fifth the weight of cast iron—it is easy to transport and install (even as a DIY project), while also reducing the load on the roof structure.
Low maintenance costs: The smooth inner surface minimizes water flow resistance and prevents the buildup of debris; there is no need for periodic painting or rust-proofing.
Quiet performance: Compared to metal gutters, PVC produces less noise when struck by rainwater.
Cost-effective: Both material and installation labor costs are lower than those of most metal systems.

What is the service life of PVC Roof Drainage System ?

Under normal installation and maintenance conditions, high-quality PVC gutters are typically designed to have a service life of at least 50 years. Their weather resistance depends on whether a sufficient amount of ultraviolet (UV) stabilizer has been incorporated.

Will the color of PVC Roof Drainage System fade over time?

White is the most common color; although PVC is UV-resistant, it may develop a slight yellowing after years of sun exposure. Darker colors, such as gray or brown, generally offer more stable weather resistance. Opting for high-end products that feature a co-extruded protective layer can significantly delay fading.

Will it crack or deform under extreme weather conditions?

Low-temperature resistance: Modern, high-quality PVC gutter is formulated with impact modifiers, allowing them to retain their toughness—typically across a temperature range of -30°C to 70°C. They remain crack-free during falling-weight impact tests conducted at -10°C, making them suitable for use in cold climates.
High-temperature and UV resistance: Premium products contain UV-stabilizing additives that protect against fading and embrittlement caused by sun exposure. However, PVC may undergo slight thermal expansion under prolonged, extreme heat; therefore, adequate space for expansion must be allowed during installation.
Note: Inferior PVC products, or those lacking UV stabilizers, may turn yellow and become brittle after just a few years.

How do you choose the right PVC Roof Drainage System size?

Common specifications include 5-inch (approx. 125 mm) and 7-inch (approx. 175 mm) gutters, as well as 80×100 mm rectangular gutters.

5-inch: Suitable for villas and low-rise residential buildings with an eaves length of ≤15 meters, located in areas with moderate rainfall.
7-inch: Suitable for mid-rise buildings or residences with large roof areas; capable of handling a drainage flow of up to 10 liters per second.
80×100 mm and larger: Suitable for large commercial buildings, industrial facilities, or regions prone to heavy rainfall; capable of handling a maximum drainage flow of up to 25 liters per second.
Selection Advice: Determine drainage requirements based on the roof’s projected area and the intensity of a “100-year” storm event for the local area. When in doubt, opt for a larger size rather than a smaller one.

What wall thickness is considered acceptable for PVC gutters?

National and industry standards typically require gutter wall thicknesses to be no less than 2.0 mm–3.0 mm. Walls that are too thin are prone to deformation under the heavy weight of accumulated snow or when a ladder is leaned against them. High-end products often feature a double-walled structure, which enhances strength while maintaining a lightweight design.

Are PVC gutters environmentally friendly?

PVC-U drainage pipes produced by reputable modern manufacturers have gradually phased out lead-based stabilizers in favor of calcium-zinc (Ca/Zn) composite stabilizers, achieving a lead-free composition that meets environmental standards. While PVC material itself is recyclable, the maturity of its recycling infrastructure varies by region.

How is its fire performance?

PVC is a flame-retardant material (oxygen index ≥ 32) that is self-extinguishing once removed from a flame. However, when installed in exposed locations indoors, care must be taken to prevent fire from spreading along the piping. Outdoor gutters, being far removed from sources of ignition, pose a negligible fire risk.