Technoelast K-TMS 170/3400 Venting Layer

A high performance, polyester-reinforced waterproofing material which is saturated and coated with high quality styrene-butadiene-styrene (SBS) modified bitumen. The upper side is finished with fine-grained sand, whilst the underside consists of specially engineered low melt bitumen stripes with sand in between, covered by thermofusible film to prevent the roll from sticking together. The stripe technology is designed to achieve partial bonding to the substrate and to allow any trapped vapour or moisture to dissipate in all directions, thus preventing blistering build up.

Features and benefits:

• Good low temperature flexibility at -20°C.

• Compatible with all types of bitumen membranes.

• Suitable for roofs with high condensation risk.

• High puncture resistance.

• High resistance to foot marking.

• Manufactured to EN 13707: 2004 + A2: 2009.

• CE marked.

Applications:

• Designed for use in high performance built up roofing systems and meets requirements of both new build and remedial roofing applications.

• Can be applied as an underlay to all suitable types of substrates and is particularly well suited to roofs with high condensation risk.

• In addition, it may be used as part of an overlay system to existing asphalt waterproofing. The product is not recommended for use as single layer waterproofing.