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152mm standard louvres have achieved a worldwide market acceptance where
simple controlled ventilation, maxi- mum daylight area, and low cost reliability are
required. Standard louvre windows are available from 2 blade up to 14 blade ventilators
and all are easily fixed without the need for special tools. Windows are produced in loose
bar form for self-assembly in a range of standard heights or with an extension piece for
extended heights. Standard louvre windows provide a versatile and reliable product where
ventilation and economy are the prime consideration.
Each jamb channel is fitted with the specified number of blade holders at 139.7mm centres, giving overlap of 12.7mm to each glass blade. Fixing holes are pre-drilled in the channels at specified centres. The operating (handle) side of the louvre window is fitted with operating mechanism and locking handle.
Detailed fixing instructions are supplied but essentially the louvre jambs, head and cill bars are simply screw fixed to a flat prepared surface which should be a minimum of 50mm wide.
Standard blade holders are made to accept 4, 5 or 6mm clear or
rough cast glass. Exposed long edges of all louvre blades should be smoothed. Maximum
recommended length of 6mm glass is 1067 mm. Glass-blades for single panel units are cut to
a size 38mm less than the opening length and on self-mullioned multiple panel units 38mm
less than the panel length.
Head and cill weatherbars are produced from extruded aluminium profiles fitted with a PVC weatherseal. Sections are pierced with elongated holes to allow them to be positioned correctly during installation. Weatherbar length is measured between the inside faces of the installed louvre window. Weatherbars are supplied in natural anodised finish, and unless otherwise specified, will be supplied in a standard size for cutting down to exact size on site during fixing.
panels For windows up to 14 blades high, self-mullioned couplings can be used to join any number of panels to form multiple panel assemblies.
Louvre handles are provided on the left hand side of the window viewed from inside. Right hand operation is possible but not offered as standard.
Where remote control gear is to be used, please specify at order stage as an alternative handle must be fitted. Ring handle adaptors are available to convert the standard handle into a handle suitable for pole operation. A 25mm diameter pole head is available. Where 'out of reach' windows occur, drop rods can be fitted to the standard handle arrangement - the maximum size of drop rods is 900mm. Aluminium louvre blades can be supplied in lieu of glass blades. Insect screens are available for various installation details.
Standard louvre windows are for use in sheltered locations where ventilation is a prime consideration.
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