Timloc Invisiweep (IW)

The almost-invisible, multi-function wall weep for discharging water from external walls. Suited for use with the Timloc cavity tray system, over external lintels and on external masonry walls. Invisiweep has numerous patent-pending innovative features, including a venturi effect outlet tube that reduces water pressure, allowing for optimal drainage.

Invisiweep satisfies all NHBC requirements and meets British standards: BS5250, BS5628 and BS8215.

Uses:

• Any situation where water must be discharged from an external wall, including:
• At ground floor slab level
• Within cavity tray systems
• Over external lintels
• On external masonry walls

Size:

• Height: 65mm
• Width: 10mm
• Length: 102mm

Installation Advice

Invisiweep should be used in perpendicular joints to perform the function of a drainage channel wherever water could collect inside a cavity wall such as over external lintels, or over cavity trays.

• To work effectively the Invisiweep should be placed directly on top of the base of a cavity tray, DPC or on the front edge of a lintel.
• Wall weeps should be placed at 450mm centres above openings with a minimum of two to comply with NHBC recommendations.
• Care should be taken to ensure the Invisiweep is kept clear of mortar and does not become blocked. This is important at the cavity side of the weep which could be blocked by mortar droppings from above.