Twin-Therm® Griffon uses the principles of the Twin-Therm® Quantum self-curved design across the apex of the roof to achieve the required external sheet end lap either side of apex.
However once at the required end lap pitch, it flows into a straight pitch design with every end lap thereafter being set at the same pitch.
The system specification drawing ‘TT-SDR-M05’, available from the technical download section, provides further information.
Depending on span this design can facilitate a much lower overall apex height over the other Twin-Therm® roof options and may also be considered as an alternative option on larger spanning buildings where a large radius curve using a standing seam or secret fix roof system is being considered.
Increasing the span of the roof area can also reduce, or even eliminate, the internal valley gutter requirements on a project; this in turn reduces internal pipework and more importantly the risk of water ingress.
For further information refer to the technical section of the website;