Wall Vents & Closures

Core Drill Vent

The Core Drill Vent offers a through wall ventilation system with a facility to increase or decrease the air flow into the dwelling.

The 5 inch Core Drill Vent has been designed predominantly for use when ventilating a gas appliance, although it can be used to supply general through wall ventilation.

Supplied in kit form comprising of a cowl vent for exterior use, a louvre grille for interior use, a 350mm length of pipe duct and an anti –draft baffle. The baffle reduces the airflow and also the feel of a draught through the vent. The vent can easily be fitted in both refurbishment and new build situations with the use of a 5 inch (127mm) diameter core drill.

Without the use of the anti-draught baffle, the free area of the vent is 100cm2, enough to supply an appliance with rated input of 27kW or 92,000 Btu/h (in accordance with BS5440 Pt.2.2000).

With the anti-draught baffle installed, the effective free area of the vent is reduced to 70cm2 (BRE tested) providing enough ventilation for an appliance with an input rating of 21 kW or 71,500 Btu/h.

For further technical info visit www.manthorpe.co.uk.

Download Core Drill Vent Product Literature

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Multi-width Wall Cavity Closure

Suits standard cavity widths between 50mm and 100mm.

The multi-width cavity closure provides a versatile solution to cold bridging problems. They also save time in construction by closing the cavity without the need to return to the blockwork.

An economical solution to closing the cavity at window and door reveals, they also act as an effective vertical damp proof course. The multi-width cavity closure also addresses the issues of condensation and promotes air tight detail. The cavity closure is non-load bearing and should not be used as a replacement for traditional methods of fixing window and door frames to the masonary.

Requiring no special tools the multi-width cavity closure can simply be cut with a saw with no loss of thermal efficiency.

Supplied in 100mm width with groove guides for cutting to various widths.

For further technical info visit www.manthorpe.co.uk.

Download Wall Cavity Closure Product Literature

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