Residential pool membranes
Not every “liner” is built the same.
Ferguson Aquatics offers reinforced PVC membrane for select residential renovations where a field-welded waterproofing system provides a better fit than a conventional replacement vinyl liner.
Reinforced versus conventional
A membrane system—not a factory-made bag liner.
Traditional residential vinyl liners are commonly manufactured in the 20–30 mil range and fabricated offsite to fit a measured pool. They remain a practical finish for many purpose-built vinyl-liner pools.
Reinforced PVC membrane is a different assembly. RENOLIT membranes combine flexible PVC layers with internal polyester reinforcement and are typically supplied in heavier 60–80 mil classes. The material is fitted and heat-welded at the pool, allowing the installer to build around the actual shell and its details.
Side-by-side
Two products with different construction and installation methods.
Polyester-reinforced PVC laminate
Unreinforced vinyl liner material
Approximately 60–80 mil, depending on the selected system
Commonly approximately 20–30 mil
Cut, fitted and heat-welded onsite
Factory-fabricated to the pool measurements
Applied as a waterproofing surface over a prepared compatible shell and protection layer
Hung from liner track and supported by water pressure against the pool structure
Field-formed around steps, benches, sun decks, curves, fittings and custom transitions
Built into the ordered liner pattern and measured configuration
Individual areas and seams can often be field welded when conditions permit
Patches may be possible, but larger changes commonly require a replacement liner
Thickness alone does not determine performance. Product selection, shell condition, preparation, water chemistry, installation quality and the pool’s intended use all matter.
Where reinforced membrane fits
A strong option for unusual or demanding residential renovations.
- Concrete, plaster, painted or tiled shells that can be properly prepared
- Custom steps, benches, ledges and sun decks
- Pools where field-built details are more practical than a factory pattern
- Owners seeking RENOLIT texture, color or architectural-finish options
- Projects that need a coordinated protection layer, membrane and termination system

Chicago, Illinois
444 square feet. Completed in two working days.
This residential transformation used an 80-mil patterned RENOLIT membrane over the specified protection layer, with custom field detailing at the sun deck, steps and skimmer flange.
View the complete project