Green Building Forum - How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? Tue, 19 Dec 2023 07:07:03 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303073#Comment_303073 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303073#Comment_303073 Sun, 03 Sep 2023 16:40:24 +0100 greenfinger
I'm going to be stripping slates and putting in new lead soakers with a flashing next week. It's a stone wall, so the flashing will be a straight diagonal line, parallel to the top of the roof.

At the bottom, the roof extends beyond the wall by a few inches. What's the normal way to detail that? I've had a look online but not been able to find anything....

Many thanks]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303074#Comment_303074 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303074#Comment_303074 Sun, 03 Sep 2023 16:53:39 +0100 owlman How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303077#Comment_303077 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303077#Comment_303077 Sun, 03 Sep 2023 17:37:37 +0100 greenfinger
I'll see about getting some photos.

Ta]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303080#Comment_303080 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303080#Comment_303080 Sun, 03 Sep 2023 18:22:30 +0100 tony How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303094#Comment_303094 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303094#Comment_303094 Mon, 04 Sep 2023 14:16:14 +0100 greenfinger
Maybe I didn't explain things clearly. So I've got some photos in case my description made no sense! Ignore the plastic, turned up lead, hessian, etc. Hopefully can still get an idea of what's going on even with that cr@p in the way!

Cheers]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303095#Comment_303095 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303095#Comment_303095 Mon, 04 Sep 2023 14:19:17 +0100 greenfinger How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303096#Comment_303096 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303096#Comment_303096 Mon, 04 Sep 2023 14:19:34 +0100 greenfinger How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303098#Comment_303098 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303098#Comment_303098 Mon, 04 Sep 2023 15:13:00 +0100 fostertom How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303101#Comment_303101 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303101#Comment_303101 Mon, 04 Sep 2023 16:01:10 +0100 Dominic Cooney I have done something similar at the sides of my rooflights. I'll try and find a picture.]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303102#Comment_303102 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303102#Comment_303102 Mon, 04 Sep 2023 16:08:19 +0100 Dominic Cooney How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303103#Comment_303103 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303103#Comment_303103 Mon, 04 Sep 2023 16:14:00 +0100 Dominic Cooney we have a much more similar bit where the single storey kitchen roof joins the main building, but I don't have a very good picture of it.]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303109#Comment_303109 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303109#Comment_303109 Mon, 04 Sep 2023 17:48:31 +0100 greenfinger
What about the section below the slates, marked in red on the photo?  Would you get the relevant uPVC piece and fit to cover?  Or use some lead to cover?  

Ta]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303118#Comment_303118 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303118#Comment_303118 Tue, 05 Sep 2023 07:10:19 +0100 Dominic Cooney How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303119#Comment_303119 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303119#Comment_303119 Tue, 05 Sep 2023 08:08:45 +0100 greenfinger

So does this sound like a plan?... Have a full soaker beneath the eaves slate, down passed the wall into the gutter. But I was thinking to fold the upstand over so that it is thicker for extra strength (seeing as there will be no wall behind it). Presuming 35mm or so height upstand once folded should be plenty?

The flashing I was planning to wrap round the corner to stop ant water getting behind it. Presumably because the lead has come down the diagonal wall, when I wrap it round t will have to continue to be diagonal down that wall too. Would you then cover that with another small bit of straight/horizontal lead so it's in keeping? And if so, would you chase that bit in?

As for the sections marked in red, I think using lead makes sense. But any tips on how to do that please? Would you do it almost like a soaker in reverse, and run an upside down L shape with lead under the eaves slate and then dressed to cover the small verge? That's just me thinking allowed though, so open to all suggestions!

Thanks again]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303120#Comment_303120 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303120#Comment_303120 Tue, 05 Sep 2023 08:28:39 +0100 Peter_in_Hungary Posted By: Dominic Cooneysorry picture has ended up quite pixellated / poorer quality
we have a much more similar bit where the single storey kitchen roof joins the main building, but I don't have a very good picture of it.
    http:///newforum/extensions/InlineImages/image.php?AttachmentID=8628" alt="abutment flashing.jpg" >

In the 4th picture what seals the flashing to the wall, is it cut in or is there some sort of sealant between wall and flashing (if so what?)]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303153#Comment_303153 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303153#Comment_303153 Wed, 06 Sep 2023 12:05:41 +0100 Dominic Cooney Posted By: Peter_in_HungaryIn the 4th picture what seals the flashing to the wall, is it cut in or is there some sort of sealant between wall and flashing (if so what?)

Hi Peter, it's cut into a slot in the stone made with a disc cutter (I didn't do as neat a job of that on this side as I did on the other) then pinned in place with small bits of folded lead carefully hammered in with a chisel, then sealed with "Lead Mate."]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303154#Comment_303154 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303154#Comment_303154 Wed, 06 Sep 2023 12:11:02 +0100 Dominic Cooney How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303155#Comment_303155 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303155#Comment_303155 Wed, 06 Sep 2023 12:11:58 +0100 Dominic Cooney How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303156#Comment_303156 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303156#Comment_303156 Wed, 06 Sep 2023 12:16:20 +0100 Dominic Cooney
You can also see the plastic eaves carrier/protecter going into the gutter, these are sold for repairs to felted roofs but I think they are useful for this purpose even on re-done roofing.]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303158#Comment_303158 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303158#Comment_303158 Wed, 06 Sep 2023 12:33:09 +0100 greenfinger
If I follow your example, I'll still have the short amount of verge beneath to deal with (the red marked bits in the photos). In the photo with the white wall and apron flashing, I think I'll stick with my idea of using lead to cover as described above. In the other photo, I think the simplest and neatest solution will be to get some uPVC fascia/bargeboard and make it larger to meet the wall cover the bit currently stuffed with plastic. If doing that, what would I need to ask for at the builders merch? Would I need a full length of bargeboard?

Thanks again :)


PS - off topic - but what are those gutters? They look nice.]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303159#Comment_303159 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303159#Comment_303159 Wed, 06 Sep 2023 12:40:16 +0100 Dominic Cooney
I can't help with the uPVC I've never bought any - never had a place with uPVC soffits or barge boards!
It's a shame you can't just come across a spare bit in a skip.]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303184#Comment_303184 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303184#Comment_303184 Fri, 08 Sep 2023 18:39:35 +0100 lineweight How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303186#Comment_303186 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303186#Comment_303186 Sat, 09 Sep 2023 10:06:15 +0100 tony How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303188#Comment_303188 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303188#Comment_303188 Sat, 09 Sep 2023 11:40:52 +0100 djh Posted By: tonyIdeally when done no holes left for birds, bats or bumblebeesDon't forget squirrels! :devil:]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303191#Comment_303191 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303191#Comment_303191 Sat, 09 Sep 2023 14:50:41 +0100 Dominic Cooney Always make space for nature somewhere - this is the Green Building Forum after all!]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303196#Comment_303196 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303196#Comment_303196 Sun, 10 Sep 2023 06:42:22 +0100 cjard
There are spring clips now available for such a task - Google "lead flashing clips"]]> How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303200#Comment_303200 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303200#Comment_303200 Mon, 11 Sep 2023 07:06:06 +0100 Dominic Cooney How to detail soakers and flashing where a roof extends beyond the abutment wall (at lowest point)? http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303201#Comment_303201 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17940&Focus=303201#Comment_303201 Mon, 11 Sep 2023 09:33:42 +0100 WillInAberdeen Posted By: Dominic CooneyThe gap for the bats is in the mortar of one of the ridge tiles on the main roof.
Always make space for nature somewhere - this is the Green Building Forum after all!Bravo! We have a gap for bats in the eaves above a bay window with an armchair, it's magic to sit there and watch them setting out in the evenings for their night's work! Also welcoming for bees/wasps, hibernating butterflies, nesting bluetits, who all stay in the gap between the slates and the felt or soffit and don't enter the roof space. Love/hate with mice who chew my insulation but sustain the owls.

Would probably draw the line at grey squirrels. One of these will keep them out.
https://www.leadworx.com/shop/lead-roof-vents/bat-access-vent/]]>