Umbrellas – Fixed vs Demountable

Architectural umbrellas are tensile structures – the fabric is in tension and able to deal with loads such as wind and snow Fixed umbrellas are engineered to suit the local conditions – they are fixed and do not have to Continue reading Umbrellas – Fixed vs Demountable

Correctly formed fabric vaults

Arched Shade Structure

In order to be a correctly double curved “anti-clastic” surface, the fabric on an arched structure curves down between the arches as well as over the arch. To achieve this the fabric must be patterned with curved edges to each Continue reading Correctly formed fabric vaults

Generic Engineering

Broken Umbrella

There is a strong tendency for shade providers to use pre-engineered ‘generic’ structures to both justify the initial costs of engineering and to simplify and streamline the fabrication and supply process. This ‘one-size-fits-all’ carries with it inherent dangers of non-compliance. Continue reading Generic Engineering

Tension – not bending

Tensioned Structure

Fabric structures are often referred to as tensile structures which refers to the basic principles involved i.e. the fabric system should be in tension. Poor design can result in asymmetric tension forces which can lead to bending as can be Continue reading Tension – not bending

Not all is as it “Seams”

Seamed Shade Cloth

The majority of shade sails are too large to fit inside the width of fabric off the roll therefore, they are made by joining strips of shadecloth together to form a larger panel – this process is called seaming. Seams Continue reading Not all is as it “Seams”