Mon, 25 May 2026 08:51:31 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304556#Comment_304556 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304556#Comment_304556 Mon, 11 Dec 2023 19:39:44 +0000 chrisinbrighton The roof angle is 115 degrees.
Do the experts here think the copper nails will be sufficient?

Thanks,
Chris]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304558#Comment_304558 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304558#Comment_304558 Mon, 11 Dec 2023 22:20:17 +0000 Mike1
I know that things were tightened up a few years ago and, here in France, fixing by clips is mandatory on pitches over 50%. Not sure if that's a local reg, or if it reflects tightened European standards.

Update: looks France-specific. NHBC are still saying twice-nailed, even when vertical - https://nhbc-standards.co.uk/7-roofs/7-2-pitched-roofs/7-2-19-fixing-tiles-and-slates/]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304569#Comment_304569 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304569#Comment_304569 Tue, 12 Dec 2023 20:18:14 +0000 tony https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304571#Comment_304571 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304571#Comment_304571 Tue, 12 Dec 2023 20:48:46 +0000 Peter_in_Hungary So an obtuse angle of 115 deg is the same as an acute angle of 65 deg, just measured from the other side.

Just guessing !]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304572#Comment_304572 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304572#Comment_304572 Tue, 12 Dec 2023 20:53:50 +0000 chrisinbrighton https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304574#Comment_304574 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304574#Comment_304574 Tue, 12 Dec 2023 21:42:34 +0000 Peter_in_Hungary https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304575#Comment_304575 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304575#Comment_304575 Tue, 12 Dec 2023 22:24:08 +0000 chrisinbrighton https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304577#Comment_304577 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18046&Focus=304577#Comment_304577 Wed, 13 Dec 2023 08:30:44 +0000 Peter_in_Hungary Posted By: chrisinbrightonyes 32.5 deg rafters...not good for snow!
A bit more static load but presumably the rafters sizing accounts for the angle, more likely to blow under the slates but that is what the roofing felt is for and less likely to avalanche off as it thaws taking the gutters with it.]]>