Our Clou needs a strengthening panel - around 2.2m x 30cm - across an unsupported lateral joint in the roof between a weak fibreglass sandwich section of roof and the original solid aluminium sandwich roof. Movement of the fibreglass section is causing repeated leaks exacerbated by a heavy solar panel on the fibreglass section.
I think the panel should be 2mm thick aluminium. The new section of roof is around 3mm lower than the original roof, so I'd like the panel to have a matching step-down along its length so that the bonds between the panel and roof are a similar thickness.
If the ledge in the strengthening panel is made by a press, I've been told it will take maybe an inch to drop down; I'd prefer to avoid that gap if possible to tie the two sections of roof tightly together. An alternative method of bending the panel is roll forming, which can be used to put a precise vertical ledge in the panel.
I've been trying to find a firm who can handle a small roll forming job like this, but no luck so far, so I'm hoping someone here can suggest a suitable firm, or has a better idea.
Otherwise I'll try pressing the ledge into the panel and hope it works.
I think the panel should be 2mm thick aluminium. The new section of roof is around 3mm lower than the original roof, so I'd like the panel to have a matching step-down along its length so that the bonds between the panel and roof are a similar thickness.
If the ledge in the strengthening panel is made by a press, I've been told it will take maybe an inch to drop down; I'd prefer to avoid that gap if possible to tie the two sections of roof tightly together. An alternative method of bending the panel is roll forming, which can be used to put a precise vertical ledge in the panel.
I've been trying to find a firm who can handle a small roll forming job like this, but no luck so far, so I'm hoping someone here can suggest a suitable firm, or has a better idea.
Otherwise I'll try pressing the ledge into the panel and hope it works.