
IKO Perforated Sand Underlay (3H)
Product documents
Literature
TDS - Technical Data Sheet
Category: Roofing
Sector of Application: Flat
Product Type: Bituminous
Membrane Type: Underlay
Product Information
- Formerly BS 747 Type 3H
- British Standard glass-fibre based
- Economic roofing materials
Colour: Black
Product Finish: Sand
Installation Method: Loose Laid
Project Type: Commercial Small, Domestic Large, Domestic Medium, Domestic Small

IKO Perforated Sand Underlay (3H)
SKU | Unit weight kg | Width mm | Length mm | Product colour | Product finish |
03862000 | 34.50 | 1000 | 20000 | Black | Sand |
Features and benefits
- Formerly BS 747 Type 3H
- British Standard glass-fibre based
- Economic roofing materials
IKO Perforated Sand Underlay is a perforated venting underlay which is sand finished on both surfaces. This product is loose laid to provide an economical, controlled partial bond to a substrate, when the subsequent layer is fully bonded in hot bitumen.
This range of IKO glass-fibre roofing membranes consists of underlays and cap sheets, complying with former BS 747: 2000 Type 3 where applicable. The products usually have an oxidised bitumen coating and are either sand or mineral surfaced. These products are usually applied with hot bonding bitumen, or cold bitumen adhesive.
Accreditations




Product attributes
MEMBRANE CARRIER: Glass
MEMBRANE MODIFIER: Oxidised Bitumen
MULTI-LAYER
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