While PVC roofing membranes have several benefits, there are also some potential drawbacks or cons associated with their use. Here are a few considerations:
Cost: PVC roofing can be more expensive upfront compared to other roofing materials like asphalt shingles. The higher initial cost may deter some budget-conscious homeowners.
Installation Complexity: Installing PVC roofing requires specialized knowledge and experience. Improper installation can lead to issues such as leaks or premature membrane failure. It is recommended to hire professional contractors with expertise in PVC roofing installation.
Environmental Impact: The production and disposal of PVC materials can have environmental implications. PVC is made from petroleum products, which are non-renewable resources. Additionally, the manufacturing process can release certain chemicals into the environment. However, it's worth noting that PVC roofing membranes are typically long-lasting, which can reduce their overall environmental impact compared to shorter-lived roofing materials.
Heat Expansion and Contraction: PVC roofs can expand and contract with temperature fluctuations. Extreme heat can cause the material to expand, while cold temperatures can lead to contraction. Over time, this movement can potentially stress the seams and connections, leading to issues such as leaks or membrane damage if not properly accounted for during installation.
Limited Color Options: PVC roofing membranes are typically available in lighter colors, which can reflect heat and reduce cooling costs. However, if you prefer a wider range of color options for your roof, PVC may not provide as much variety compared to other roofing materials.
It's important to consult with roofing professionals and consider these factors in the context of your specific needs and circumstances before making a decision about PVC roofing.