Safir is a design composite/aluminium window that is characterised by a particularly slim, flush-fitting form. The frames are flush fitting both inside and out, and outside even the glass is flush-fitted. As such, Safir offers excellent thermal insulation. The secret behind the stable, slender frames is an integrated, innovative GRP fibre composite in plastic profiles which provides impressive stability without the need for a heavy, heat-conducting supporting steel frame.

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