Cavity Wall Weep Vent

• Purpose made and pre-formed to guarantee reliable discharge of water.
• Less prone to inadvertent pointing-up than weep holes formed by simply leaving the perp. joint open.
• Integral front grille prevents entry of large nest building insects into the cavity.
• Range of colours to blend with brick or mortar colour: Terracotta, Buff, Brown, Clear, White, Grey, Black or Blue Black
• Individual extension pieces (1144) can be clipped together to create a longer extension.
• 1143 airflow = 165mm2 Free area/unit.

• Satisfies all NHBC requirements.
• Manufactured to BS EN ISO 9001 and BS EN ISO 14001.
• Complies with all relevant Building Regulations.
• Meets all relevant British Standards.

• Injection moulded in UV stabilised polypropylene.
• 1143 Cavity Wall Weep Vent is available in a choice of Terracotta, Buff, Brown, Clear, White, Grey, Black or Blue Black.
• 1144 Cavity Wall Weep Vent Extension is available in Natural only.

• Wall weeps should be used wherever water could collect inside a cavity wall, such as over external lintels, or wherever a cavity tray system is installed.
• To work effectively wall weeps should be placed directly on top of the base of a cavity tray or DPC, or on the front flange of the lintel.
• Wall weeps should be spaced at 450mm centres to comply with NHBC recommendations.
• Care should be taken to ensure the wall weep is kept clear of mortar and does not become blocked. This is particularly important at the back of the weep which could be blocked by mortar droppings from above.

• To calculate quantities, divide the overall length of the cavity tray, DPC or lintel by 450mm and round up to the nearest whole number.
• Check that the external wall is a standard 102.5mm brick or 100mm block thickness, if it is not please state the thickness on your order.
• State the product number, type, colour etc. on your order.

F30 Accessories/sundry items for brick/block/stone walling

Clause | 132^ WEEP HOLES

• Form with plastic perpend units to manufacturer recommendations at not greater than 900mm centres immediately above base of cavity, external openings and stepped dpcs. Provide not less than two weep holes over openings.
• Manufacturer: Timloc Building Products, Timloc House, Ozone Park, Howden, East Yorkshire, DN14 7SD. Tel: 01405 765567, Web: www.timloc.co.uk
• Reference: 1143/1144
• Colour: Terracotta, Buff, Brown, Clear, White, Grey, Black or Blue Black