Birtley CB70 Cavity Wall Standard Duty Lintel 1200 mm Remedial Ties this allows for the ventilation

this allows for the ventilation of a pipe run (to relieve negative pressure) without letting odours escape

315 mm Diameter Shallow Access Chamber Riser 185 mm Invert Airtight Pedestrian And Driveway Covers

Prevents flies and debris from entering

Yard gully to suit cast iron drain grate

300 mm high chamber riser for 450 mm access chamber

Birtley CB70 Cavity Wall Standard Duty Lintel 1200 mm Remedial Ties this allows for the ventilationStandard duty cavity wall lintel manufactured from structural grade steel Cavity: 70 mm 85 mm Outer Leaf: 100 mm Inner Leaf: 100 mm 60 minute fire rating with 2 coat plaster finish Lack of baseplate and factory fitted expanded polystyrene insulation reduces thermal bridging Not suitable for point loads or concrete floors Loading SWL UDL Value: 15 kN