Are you saying water is tracking in through the outer skin and then immediately dripping back out through the outer skin again immediately beneath the new roof?
DIY Lead Flashing - Opinions Please?
I did in the last few times I’ve had this and was told “don’t worry I wouldn’t dream of asking you to retro fit a cavity tray”.
It also didn’t feature on full plans BC submission and wasn’t questioned.
But yes, technically I’m not disputing you’re right, belt and braces and all that
You should have more success with leadseal
No, I said the flashing was at fault and that a proper cavity tray would have caught the dribbles and turn them to the outside. It does seem a few on here do not know exactly what a proper tray is and what it can do.
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Not strictly true .. The cartoon picture is not a typical example of a proper lead tray. it shows a plastic tray with either lead integrated tray or sat on a flashing.
A proper traditional tray would party sit inside the loft space and extend ouyt past the flashing where its dressed down.
Its not rocket science. It just shows how much has been forgotten over time in the chase for cheapness and lack of know how of course
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In this case you are probably correct especially if it was applied under the laps and followed the rake cuts too
Haha. Maybe it’s a regional thing, it’s pretty uncommon here to see cavity brickwork being cut out to install trays, same for cutting out down the cavity when building a new wall. For your average domestic extension at least. And yes I know “it’s wrong”
BC are non plussed about it down here as are the builders, my extension drawings always show a retrofitted tray in such situations, some BCs insist on its fitment and some don't, same for the builders.
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I'm a DIY'er so grateful for anything learnt on here from those that know better. I've only seen diagrams of stepped trays like that previously posted, so useful to know there's a better way, thank you.
you mean some builders avoid fitting i think
I am not a diyer, i am however a long standing professional. nothing i comment on is based on googling.
i will post a picture as soon as we get involved next.
For sure but if BC aren't going to insist .....
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Well, just a final update on this for anyone who may stumble across the thread in the future. Turns out it was just a silly test to do - lesson learned there, but was done with best intentions.
In the 6ish months since doing the job, we have had some of the heaviest driving rain that I've seen in recent years, most recently last night, and not a single drop got past the flashing. So for a first DIY flashing job, I'm pretty happy with that.
I didn't go down the route of installing trays, and glad I didn't as it would have been no benefit in the end. Interesting bag of mixed opinions along the way, which is always handy.
Cheers.
In the 6ish months since doing the job, we have had some of the heaviest driving rain that I've seen in recent years, most recently last night, and not a single drop got past the flashing. So for a first DIY flashing job, I'm pretty happy with that.
I didn't go down the route of installing trays, and glad I didn't as it would have been no benefit in the end. Interesting bag of mixed opinions along the way, which is always handy.
Cheers.
Excellent job for a beginner. Lots of instances where a cavity trays are not required, most of it is experience when deciding to fit them or not.