I wanted 16mm thick 800mm wide polycarbonate sheets for my patio canopy. I waited till the roof bars arrived to measure the width of the middle of them so I know how much gap between sheets and therefore beam centres. There’s a 10mm rubber seating in the bars. Therefore I allowed fir this, the sheets overlap 10mm each side onto the bars perfectly.
the problem is the sheets are cut down the centre of the wall of the sheets so the ends of the sheets are in fact not walled but overhang and quite flimsy. When I secure this 10mm bit over the bar and snap down I’m concerned it’s not actually that secure as it 10mm of flimsy thin plastic and not over the sheet wall.
See image.
Will this be an issue? Should I request my sheets actually have the sheet wall on the ends not nothing?
or will it be ok due to screwing into purlins and therefore be secure enough? So the roof bar is not securing it too much.
Or maybe it’s ok as it’s 3.5m of roof bar is long enough to keep it secure?
thanks
the problem is the sheets are cut down the centre of the wall of the sheets so the ends of the sheets are in fact not walled but overhang and quite flimsy. When I secure this 10mm bit over the bar and snap down I’m concerned it’s not actually that secure as it 10mm of flimsy thin plastic and not over the sheet wall.
See image.
Will this be an issue? Should I request my sheets actually have the sheet wall on the ends not nothing?
or will it be ok due to screwing into purlins and therefore be secure enough? So the roof bar is not securing it too much.
Or maybe it’s ok as it’s 3.5m of roof bar is long enough to keep it secure?
thanks