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Membrane
Membrane Choice
The single biggest lever on price. PVC coated polyester is the most cost-effective and widely used option, with a typical 10–15 year lifespan. PVDF adds a self-cleaning top coat at a moderate premium over PVC. PTFE coated fiberglass costs more upfront but is inherently fire-resistant and lasts 30+ years. ETFE foil is used for lightweight, highly transparent applications with a 30–50 year lifespan.
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