The CG Roof Tile Underlay Plastic White 1.5 x 30m is a high-quality roofing membrane designed to provide an effective protective barrier beneath concrete and clay roof tiles. Measuring 1.5 metres wide by 30 metres long, this durable plastic underlay helps protect the roof structure from wind-driven rain, dust, draughts, and moisture while improving the overall performance and longevity of the roofing system.
Suitable for residential, commercial, and industrial roofing projects, this undertile membrane is an essential component for new roof installations and roof renovations. White polyethylene undertile membranes in the 1.5 x 30m size are widely used to improve weather protection and reduce moisture penetration beneath roof tiles.
Product for Roof Tile Installations
The CG Roof Tile Underlay is installed beneath roof tiles and over the roof structure to create an additional protective layer against the elements. It helps minimise water ingress during severe weather, reduces dust entering the roof cavity, and assists in preventing wind uplift beneath roof tiles.
Its lightweight construction makes handling and installation straightforward, while the durable plastic membrane provides excellent resistance to tearing and moisture. Standard undertile membranes in this size provide approximately 45m² of coverage per roll.
Why Choose the CG Roof Tile Underlay Plastic White?
A quality undertile membrane helps protect your roof and home from long-term moisture damage while improving the overall weather resistance of the roofing system. The CG Roof Tile Underlay Plastic White offers dependable performance by acting as a secondary barrier against rain, wind, and dust.
Its generous roll size makes it suitable for both residential and commercial roofing projects, while the durable plastic construction ensures long-lasting performance under tiled roofs.
Key Features
- Roll size: 1.5m x 30m
- White plastic undertile membrane
- Approximately 45m² coverage
- Durable polyethylene construction
- Moisture-resistant
- Helps prevent wind-driven rain penetration
- Reduces dust entering roof spaces
- Assists in reducing wind uplift
- Lightweight and easy to install
- Suitable for concrete and clay roof tiles
- Ideal for new roofs and renovations
Applications / Ideal For
Suitable for:
- Concrete roof tiles
- Clay roof tiles
- Residential roofing
- Commercial roofing
- New roof construction
- Roof renovations
- Housing developments
- Garages
- Carports
- General tiled roof installations
Installation / Usage Guidelines
Install the membrane over the roof trusses or rafters before fixing roof battens and tiles. Overlap adjoining sheets in accordance with the manufacturer’s recommendations and secure the membrane properly to maintain continuous weather protection.
Ensure the membrane is installed without excessive sagging and avoid damage during installation. Always follow applicable building regulations and roofing best practices for optimum performance.
Availability
Available in-store and online at Build It DTM:
https://builditdtm.co.za/



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