Thanks that's good to know. Current rooflights are centre pivot but a crap cheap brand so planning to replace with Velux (also because we really want the solar electric ones for various reasons).
Here's a link to a Velux data sheet, which lists their various glazing options, how each one is constructed and a table to rank their usage
https://cdn-marketing.velux.com/-/media/marketing/uk/technical/bimcad/external%20product%20info%202020/external%20product%20info%20july%202020/external%20product%20information_ggl%20july%202020.pdf
@user69121 started
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Thanks that's good to know. Current rooflights are centre pivot but a crap cheap brand so planning to replace with Velux (also because we really want the solar electric ones for various reasons).