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PVC vs Metal Downpipes

90mm White PVC vs 95 x 45mm Rectangular Metal: A Comprehensive Comparison​

When it comes to selecting the right downpipes for your property, the choice often boils down to two popular options: 90mm white PVC downpipes and 95 x 45mm rectangular metal downpipes. Both materials have their own unique advantages and limitations, making them suitable for different applications. In this article, we'll compare these two options based on their material properties, aesthetic appeal, functionality, and suitability for specific uses like water tank integration.

1. Material and Durability​

90mm White PVC Downpipes​

PVC (polyvinyl chloride) is a lightweight, durable, and corrosion-resistant material. It is immune to rust, making it an excellent choice for areas with high humidity or coastal regions where salt exposure can be a concern. PVC is also resistant to UV degradation, ensuring it maintains its structural integrity over time. However, it can become brittle in extremely cold temperatures and may crack under impact.

95 x 45mm Rectangular Metal Downpipes​

Metal downpipes, typically made from steel or aluminum, are known for their strength and durability. They are coated with protective layers such as UniCote or Colorbond finishes, which provide resistance to rust and corrosion. Metal downpipes are more robust than PVC and can withstand harsh weather conditions, including heavy rain and wind. However, they are prone to denting and may require maintenance if the protective coating is damaged.

2. Aesthetic Appeal​

90mm White PVC Downpipes​

PVC downpipes are available in a standard white finish, which is neutral and blends well with most architectural styles. However, the color options are limited, and the plastic appearance may not appeal to those seeking a more premium or customized look.

95 x 45mm Rectangular Metal Downpipes​

Metal downpipes offer a significant advantage in terms of aesthetics. With 22 UniCote or Colorbond color options, they can be customized to match or complement the exterior of your home. The rectangular shape also provides a sleek, modern look that many homeowners and architects prefer. This makes metal downpipes an excellent choice for those prioritizing visual appeal.

3. Functionality and Water Tank Compatibility​

90mm White PVC Downpipes​

One of the standout features of PVC downpipes is their compatibility with water tanks. PVC can be easily piped directly into a rainwater tank, making it an ideal choice for homeowners looking to harvest rainwater for irrigation or other non-potable uses. The smooth interior surface of PVC pipes also ensures efficient water flow with minimal friction loss.

95 x 45mm Rectangular Metal Downpipes​

Metal downpipes, while durable and aesthetically pleasing, are not suitable for direct piping into water tanks. The metal can corrode over time when exposed to constant moisture, and the protective coatings may not be sufficient to prevent contamination of the harvested water. If rainwater harvesting is a priority, metal downpipes would require additional fittings or a switch to PVC at the point of connection to the tank.

4. Installation and Maintenance​

90mm White PVC Downpipes​

PVC downpipes are lightweight and easy to install, making them a cost-effective option for DIY enthusiasts or contractors. They require minimal maintenance, as they do not rust or corrode. However, they may need occasional cleaning to prevent blockages from debris.

95 x 45mm Rectangular Metal Downpipes​

Metal downpipes are heavier and may require professional installation. While they are durable, they need periodic inspections to ensure the protective coating remains intact. Any scratches or damage to the coating should be repaired promptly to prevent rust.

5. Cost Considerations​

90mm White PVC Downpipes​

PVC is generally more affordable than metal, both in terms of material cost and installation. It is a budget-friendly option for those looking for a functional and low-maintenance solution.

95 x 45mm Rectangular Metal Downpipes​

Metal downpipes are more expensive due to the material cost and the additional labor required for installation. However, their longevity and aesthetic appeal can justify the higher upfront cost for many homeowners.

Conclusion​

The choice between 90mm white PVC downpipes and 95 x 45mm rectangular metal downpipes ultimately depends on your specific needs and priorities. If you're looking for a cost-effective, low-maintenance option that is compatible with water tanks, PVC is the way to go. On the other hand, if you value aesthetics, durability, and a modern look, metal downpipes with their wide range of UniCote or Colorbond colors are an excellent choice.

Consider factors such as your budget, climate, and whether rainwater harvesting is a priority when making your decision. Both options have their merits, and the right choice will ensure your property is both functional and visually appealing for years to come.