Birtley Heavy Duty Cavity Lintel 50mm HD50 Gravel Boards Do not let the paving

Do not let the paving dry and keep it wet as the product is applied

04W/mK to ensure effective insulation and energy management

Allow a minimum of 72 hours drying time before further treatment with water-borne paints and wood stain systems

Do not apply at temperatures below 8°C or above 25°C during application or drying periods

Birtley Heavy Duty Cavity Lintel 50mm HD50 Gravel Boards Do not let the pavingThe Birtley Heavy Duty Cavity Lintel 50mm HD50 is the leader in heavy duty cavity wall support options. Engineered specifically to support cavities between 50mm and 65mm with outer leaf of 100mm and inner leaf of 100mm, this 50mm heavy duty lintel can handle the toughest demands. A solid fully jointed blockwork infill to its inner leaf ensures optimal performance. The use of structural grade steel conforming to EN10025 standards provides unparalleled