Birtley HD150 Cavity Wall Heavy Duty Lintel 1500 mm NailFire Nails A double branch black soil

A double branch black soil fitting with boss for adding waste pipes

Adjustable depth control

Compatible with Visqueen gas system

6mm composite damp proof course and cavity tray system

Birtley HD150 Cavity Wall Heavy Duty Lintel 1500 mm NailFire Nails A double branch black soilHeavy duty cavity wall lintel manufactured from structural graded steel to EN10025 Cavity: 150 mm 165 mm Outer Leaf: 100 mm Inner Leaf: 100 mm 60 minute fire rated with 2 coat plaster finish Lack of baseplate and factory fitted expanded polystyrene insulation reduces thermal bridging Hot dip galvanised Must have solid, fully jointed blockwork infill to inner leaf Loading SWL UDL Value: 70 kN