Green Building Forum - dry verge system for natural slate Sun, 24 May 2026 16:24:52 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252836#Comment_252836 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252836#Comment_252836 Fri, 13 Jan 2017 09:50:30 +0000 MarkyP
Has anyone experience of any dry systems that look good with natural slate? I've seem some horrid looking dry systems used with concrete tiles but, looking online, natural slate systems look a bit more discreet. One which caught my eye was the permavent easyverge, this sits under the slate and uses rubber fins to make a water seal so you can still see the edge of the slates, others seem to enclose the edge of the slate and box it in with an internal drainage channel down to the gutter.

The verge detail currently is slate, batten, cement board with mortar fill, oversailing barge board by about 50mm.

suggestions appreciated]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252846#Comment_252846 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252846#Comment_252846 Fri, 13 Jan 2017 11:04:55 +0000 fostertom Posted By: MarkyPsome horrid looking dry systems used with concrete tilesToo right.
http://www.permavent.co.uk/easy-verge/ looks good but hard to see what's going on in the pics.]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252848#Comment_252848 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252848#Comment_252848 Fri, 13 Jan 2017 11:26:24 +0000 delprado
Dry ridge also looks fine - though some systems are better than others, so worth researching a bit. The advantage of dry ridge, I think, it the ventilation it introduces at the ridge line, so you get a good chimney effect on the air movement. If I did it again I would use dry for this reason]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252859#Comment_252859 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252859#Comment_252859 Fri, 13 Jan 2017 15:15:48 +0000 MarkyP Posted By: fostertom
Posted By: MarkyPsome horrid looking dry systems used with concrete tiles
Too right.
http://www.permavent.co.uk/easy-verge/ looks good but hard to see what's going on in the pics.

I found pics from a supplier better than permavent's docs: http://www.roofingsuppliesuk.co.uk/pitched-roofs/easy-verge/

looks like it works like an undercloak which incrorporates a face that folds back under the tiles where you'd otherwise mortar pack. Nice thing, I think, is it doesn't hide the tile edge.

delprado - not sure I follow your description of your dry verge method, any chance of a pic? I have used a dry ridge, looks good and am happy with it. I made a bad decision on the verge, it seems.]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252864#Comment_252864 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252864#Comment_252864 Fri, 13 Jan 2017 15:59:58 +0000 delprado
Mortar fix is just tiles sitting on a bit of mortar. Then in between each tile, in the area where the mortar is like with bricks, is a screw that screws into the wooden batton. The way to think about traditional hips is that the only thing stopping them coming off the building is the hip iron at the bottom - in other words they slide down the hip. Thats why a screw between each one is a good way to fix them. Most are too heavy to be blown by wind, and cant really slide off any other way. Dry was invented, as I understand it, because the mortar does not a lot on natural slate, since it cannot bind very well, hence relying on hip irons.

I would recommend getting a roofer in your area to give you examples of both systems. I am afraid my scaffolding is down so I cant give you a photo]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252867#Comment_252867 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252867#Comment_252867 Fri, 13 Jan 2017 16:30:53 +0000 MarkyP dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252901#Comment_252901 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252901#Comment_252901 Sat, 14 Jan 2017 21:41:12 +0000 tony dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252912#Comment_252912 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252912#Comment_252912 Sun, 15 Jan 2017 10:02:30 +0000 fostertom
a) brick wall - you'll see the batten ends?
b) stud with rainscreen

Rendered block or EWI I guess you just render tight to the slates' undersurface?

Worries about rain tracking back in?]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252921#Comment_252921 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252921#Comment_252921 Sun, 15 Jan 2017 17:21:44 +0000 tony
a) brick wall, stop battens immediately behind the brick, 100mm wide, slates are wide enough to carry over, half slates are wire tied to whole slates. But note half slates at the end is very poor practice and slate and a half should be utilised.

b) stud wall is with rain screen simply add a barge or rail at the top, stop the battens behind that and slates sit dry on top of it.]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252922#Comment_252922 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252922#Comment_252922 Sun, 15 Jan 2017 19:21:50 +0000 fostertom dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252925#Comment_252925 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252925#Comment_252925 Sun, 15 Jan 2017 20:16:51 +0000 tony
Cloaker is like a soaker but hangs down over the verge formation, generally made of lead or ali, possibly in the future plastic, akin to a cloaked verge tile where these do not exist for slates

To see what I do with plain tiles see :- http://readinguk.org/draughtbusters/wp-content/uploads/2017/01/P1040134.jpg]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252930#Comment_252930 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252930#Comment_252930 Mon, 16 Jan 2017 10:37:27 +0000 kentishgreen
There are a few types available and as you already have your tiles on the battens, you don't want to be ripping them up along the verge to fit the verge system - so there is an option to have a verge fitted after you have the tiles/battens on, as in your case. Can't recall what type that is called, but it exists.]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252934#Comment_252934 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=252934#Comment_252934 Mon, 16 Jan 2017 17:10:20 +0000 tony
But nothing as durable as nothing as there is nothing to it to go wrong.]]> dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=260780#Comment_260780 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=260780#Comment_260780 Fri, 25 Aug 2017 19:26:02 +0100 marsaday dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=260784#Comment_260784 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=260784#Comment_260784 Fri, 25 Aug 2017 21:49:23 +0100 tony dry verge system for natural slate https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=260898#Comment_260898 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14835&Focus=260898#Comment_260898 Thu, 31 Aug 2017 14:10:40 +0100 Doubting_Thomas
I'm hoping to use their dry verge system which is aluminium rather than grp. Should last a while but would be good to know if there's any hidden issues with the install or longevity etc.]]>