Roofing felt underlay. Manufactured in Sri Lanka by Global Vinyl. Specifications, sizes and minimum order are confirmed with the quotation.

Supplied from Colombo. Price on request through the SriLankaExport trade desk.

About roofing felt underlay

Roofing felt is a sheet laid under the outer roof covering, such as tiles, metal sheet or shingles. It acts as a secondary water barrier and protects the roof deck while the roof is built. Traditional felt is a base of organic or glass fiber saturated with bitumen, while newer synthetic underlays use polypropylene or polyester layers.

Underlay is commonly traded in rolls, specified by weight per square meter, roll width and length, and whether the surface is sanded or plain.

Common uses

• Underlay below clay or concrete tiles
• Underlay below metal roofing
• Shingle roofs
• Temporary weather protection during construction

Storage and documents

Store rolls upright, dry and out of direct sun, so the layers do not stick together in heat. Buyers usually ask for a technical data sheet, test reports against the standard they buy to, a certificate of origin and a packing list. Exact weight, width, roll length, MOQ and price are confirmed on the quote.

What to include in a quote request

A clear request usually states the dimensions and thickness needed, the color or design, the standard or test the material must meet, the quantity per shipment and how often, the packing (rolls, cartons or pallets), the destination port and the Incoterm, for example FOB Colombo or CIF. A sample is often requested before a first order to check finish and color.

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