Conservatory awnings are mounted flush with the glazing.  They retract into a headbox and run down guides that are fixed to the glazing bars.  The fabric must be maintained under tension and this is done by drive mechanisms and spring tensioners in the bottom rail or side guides.  These blinds are almost always motorised.

Fabrics

Mesh fabrics are preferred as they allow outward vision and still achieve a high level of shading and heat rejection.  Acrylic awning fabrics will provide a more decorative effect.

Components

• Side guides rail - on rollscreen may be simple perlon cables or extruded aluminium “C” section.  For other systems, special extruded aluminium guides are used.  Aluminium guides usually incorporate neoprene anti-rattle strips.
• Roller  - motorised or gear operated.  In the case of tensioned systems, the use of a secondary motorised roller and/or integral tensioning spring is essential.
• Bottom/front rail - aluminium extrusion with end fittings to locate into side-guides.  With the exception of tensioned systems, the rail is weighted and allowed to move freely in the guides to prevent wind damage to fabric.
• Top board or Headbox - aluminium in a variety of configurations to suit requirements.  Roller may also be recessed into soffit if required.

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