Re-roof alternatives
- Thread starter chuckalicious
- Start date
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I am getting another one in the next few days.
Roofer was round on Thursday. Couldn't suggest any other cause for the leaks so is quoting for reroof.
Will let you all know what it comes in at.
Will let you all know what it comes in at.
Are you sure the vent tiles are fitted correctly? was the underlay cut to allow flow? I have seen vent tiles simply slipped in leaving the underlay intact giving no air flow.
where is it leaking and how does it show in the loft area?
What gauge are the tiles on at?
on the tile in the picture measure from the top of the tile to the line where the previous tile lapped (headlap)
where is it leaking and how does it show in the loft area?
What gauge are the tiles on at?
on the tile in the picture measure from the top of the tile to the line where the previous tile lapped (headlap)
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The lapping of the tiles has been checked and is about 90mm or something like that. The vents are not free venting the loft space, they are for venting between the tiles and the felt as it was suggested last year that it was condensation that was forming under the tiles. Didn't work.
The leaks are not in line with the vents.
The leaks are not in line with the vents.
Well they should vent the loft, They are incorrectly fitted
Leaks not inline with vents is not relevant
You have a felted roof, Trying to vent between the tiles and felt is a waste of time as you will have plenty of natural passive venting from under and between tiles.
You need to vent under the felt not on top of it.
Probably one of the others that know will back that up...
Leaks not inline with vents is not relevant
You have a felted roof, Trying to vent between the tiles and felt is a waste of time as you will have plenty of natural passive venting from under and between tiles.
You need to vent under the felt not on top of it.
Probably one of the others that know will back that up...
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The roof space doesn't need vented, or at least not more than it already is. The water that appears in the loft space is not condensation forming in the loft space.
The installation of the vents was to get more airflow under the tiles themselves as it was possible the moisture getting in was from condensation forming under the tiles. We had tried everything else by that point so it was worth trying. The vents themselves were modified to to allow the airflow required.
The roof is felted, but the felt has clearly failed at multiple points as depending on the weather there can be 10 wet patches spread over the length of the roof on both sides.
Other rainy days it's just one wet patch in a different place.
Driving rain doesn't leak, short heavy spells don't leak. Only prolonged rain, doesn't need to be heavy, gets in, which is why all roofers are suggesting the tiles have become porous, potentially accelerated by whatever the firm who painted the roof did to prep it before painting.
The installation of the vents was to get more airflow under the tiles themselves as it was possible the moisture getting in was from condensation forming under the tiles. We had tried everything else by that point so it was worth trying. The vents themselves were modified to to allow the airflow required.
The roof is felted, but the felt has clearly failed at multiple points as depending on the weather there can be 10 wet patches spread over the length of the roof on both sides.
Other rainy days it's just one wet patch in a different place.
Driving rain doesn't leak, short heavy spells don't leak. Only prolonged rain, doesn't need to be heavy, gets in, which is why all roofers are suggesting the tiles have become porous, potentially accelerated by whatever the firm who painted the roof did to prep it before painting.
I should also add the roof was leaking in exactly the same way before any vents were installed.
Don't really appreciate your tone to be honest. You are suggesting the vents are the problem. It leaked before the vents were installed. So, can't be the vents.
And if condensation between the felt and the tiles were the issue, venting the loft space will do bugger all. I'm not a roofer but I'm not stupid.
V
vinty
Could be because because the roof has been painted, tiled roofs aren't designed to be painted as far as I know, I have been to jobs were the paint was causing the problem.
Painting a roof can block the free flow of water, once the paint ages water can ingress and build up and because the laps of the tiles have been sealed with the paint any water underneath the tiles can't flow away, if the old felt under has deteriorated it allows water to drop through.
Painting a roof can block the free flow of water, once the paint ages water can ingress and build up and because the laps of the tiles have been sealed with the paint any water underneath the tiles can't flow away, if the old felt under has deteriorated it allows water to drop through.
V
vinty
Your roof seems pretty straightforward, no lead valleys to be cut or awkward hip details.
Properly scaffolded it should be just a matter of up and over, strip of old roof, rebatten and underlay using modern breather membrane and then using a mobile conveyer to bring the tiles up ,a good squad of roofers shouldn't take that long to cover both sides, and if they use screw on dry ridge tiles it should be even quicker.
Thanks for the replies. From what I can see the tiles aren't bonded together by the paint so hopefully that isn't the issue, but who knows now!
It rained a few mornings ago and there were no leaks. Then it rained again overnight and there are loads of leaks. No idea what's going on.
It rained a few mornings ago and there were no leaks. Then it rained again overnight and there are loads of leaks. No idea what's going on.
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