Birtley HD110 Cavity Wall Heavy Duty Lintel 2700 mm Trestle water resistant membrane suitable for

water resistant membrane suitable for use on all supported and unsupported pitched roofs

15 m in size

and can be used for soil ventilation or mechanical extraction when used with an adaptor (VR979800)

300 mm square

M20X60 BZP HT Set Screws

Birtley HD110 Cavity Wall Heavy Duty Lintel 2700 mm Trestle water resistant membrane suitable forHeavy duty cavity wall lintel manufactured from structural grade steel to EN10025 Cavity: 110 mm 125 mm Outer Leaf: 100 mm Inner Leaf: 100 mm Lack of baseplate and factory fitted expanded polystyrene insulation reduces thermal bridging 60 minute fire rating with 2 coat plaster finish Hot dip galvanised Must have solid, fully jointed blockwork infill to inner leaf Loading SWL UDL Value: 60 kN