I got the flat roof on my extension replaced about 12 years ago with a profile metal roof, and I think the installers fitted rubber sponge bungs along one end. All the bungs have now vanished and I've got a leak which I think is from the open ends. Does anyone know if tight-fitting permanent (plastic?) bungs are obtainable to fit this sort of roofing? The only descriptions I can think of which approximates to the profile cross-section is like a cut-off pyramid, or electrical square-wave (of sorts). Many thanks for any help!
Yes its possible that the rain is driving up under the profile and in the absence of proprietary "bungs" (Eaves fillers) it might be an idea to add a facia board under the profile. The board can be cut up (or scribed) to the underside of the profile and the samml gap between top of facia and underside of profile can be filled with sealant. Faining that, a small amount of expanding foam can be used to fill each peak between the profile and the wallplate. Here is a link to some expandng foam. https://www.diydoctor.org.uk/DIY-superst ... 00-ml.html
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