The Sail Shade is an attractive and fashionable canopy shape which is technically known as a hypar. Hypar (short for hyperbolic paraboloid) is one of the classic tensile fabric forms with the fabric attached at two high points and two low points to create a three dimensional flying shape.
This canopy shape can be very stable and durable but needs to be under high tensile loads in order to avoid the fabric flapping, fabric damage or rain water ponding. All of these issues can cause a canopy of this shape to fail under UK weather conditions. You can see from the drawing below that the Aura Tensile Sail Shade has four tripod legs to ground which allow us to achieve the tensile loads required for maximum stability and durability of the structure.
We take care to advise our customers on the difference between this tensile fabric sail shade structure, which is permanent and waterproof, and those that are simply tensioned structures. A tensioned sail shade structure will usually use a mesh fabric (not waterproof) to provide shade and avoid rainwater ponding, but will still have issues with snow ponding and will not have the tensile strength to withstand high winds.
Please refer to our comprehensive canopy buyer’s checklist to help you to specify the canopy that best suits your needs and make a fair comparison between different potential suppliers.
Tensile Sail Shade Key Features
Sizes: 7mx7m, 10mx10m, 12mx12m (bespoke sizes on request)
Can they be linked together: No
PVC polyester (highly coated), A range of 40 colours available, QA ISO 90001
(other fabrics available on request)
Frame Material: Steel (CE mark)
Frame Paint Specification: Galvanised (RAL paint colours may be specified)
Wind Rating: BS 6399 part 1, 2, 3 (50 year storm calculated by UK location)
Snow Loading: BS6399 part 1, 2, 3 (50 year storm calculated by UK location)
Fire Rating: Depending on fabric chosen M2 / B1 / BS 7837, B-s2,d0 or class 0 A2
Expected Design Life: 20+ years
Fabric Warranty: 10 years (subject to colour)
Foundations: Simple structural reinforced concrete
Installation: 100m2 per day average
Accessories Available: Branding, Post protector, Lighting, Heat, Waste bins
Maintenance: Virtually maintenance free. Simple annual clean and maintenance check