Installation

Installation

The correct installation of curved glass

The stress caused by different coefficients of expansion of the glass and materials surrounding it, must be avoided in order to prevent breakage. Both glass to glass and glass to metal contact must be avoided.

Curved glass must NEVER be glazed under pressure or forced into place.
Ideally the glass should be glazed in neoprene gaskets and sealed with silicone and should “float” in the sealant so that the structural stresses from the frame materials are absorbed and not transmitted to the glass.
The main obvious difference between the framing profiles for flat and curved glass is that for the former they also require to be curved, this means that the radii of the glass and the framing must coincide and be within tolerance so as to avoid glazing problems and any later subsequent breakage.

Importantly, both with laminated glass and double glazed units, AVOID THE USE OF ACID SILICONES, which can affect the butyls or can be incompatible with other silicones used in sealed unit manufacture.