New (ish) roof leaking

[suts89]

Over the past few weeks with all of this rain i have acquired a small leak. I have had a good look at really is very puzzling.

My first question - Can anyone see anything wrong with this picture. This was taking while the roof was being tiled.

I have a few theory's but first i want to know if this looks ok.

Thanks in advance to anyone interested.

Cheers

 

[hardmetalking]

There's not enough lap on the slates!!
I'm surprised it's not p*****g in?

A roofer didn't complete this work....... The basics have gone wrong.

 

[hardmetalking]

The pitch looks too low for slates as well.........

 

[scottishslater]

Do those tiles have a watergate if there slates they have negative headlap

 

[scottishslater]

are they edgemere tiles ?

 

[suts89]

There's not enough lap on the slates!!
I'm surprised it's not p*****g in?

A roofer didn't complete this work....... The basics have gone wrong.

Looks like my worst fears have been confirmed then

the builder who built the extension also did the roof.

I,m extremely upset now as on the whole the build was a success

I don't actually think the small leak is due to this problem as it happens, i think the water is going under the flashing. Unfortunately i don't have a picture with me showing that aspect of the roof/flashing.

Next question - What are my options and what will be involved in achieving the goal?

 

[catlad]

I can't see another option but to start again. The roof was never a success, it was just the felt holding the water. You need find out what the pitch is and get some suitable tiles.

 

[suts89]

I can't see another option but to start again. The roof was never a success, it was just the felt holding the water. You need find out what the pitch is and get some suitable tiles.

the pitch is 17.5 and the tiles were purchased to suite that pitch. I,ll find the name of the tile and post it later.

Am correct in thinking that the battens will need adjusting and then the tile re installed with sufficient overlap?

Whats your thoughts on where i stand with the builder, the extension was complete 18 months ago.

Thanks everyone for your input.

 

[joe-90]

If it's a flashing problem then fix the flashing. Half the posters on here are looking for work so they try to get you to do re-roof and give you a quote.
I doubt the original builder will be interested in anything apart from the flashing.

 

[suts89]

If it's a flashing problem then fix the flashing. Half the posters on here are looking for work so they try to get you to do re-roof and give you a quote.
I doubt the original builder will be interested in anything apart from the flashing.

Joe before i posted the picture and original question i went up on the roof and noticed i could see the felt through the tiles. This is what prompted me to ask the question on here and hopefully receive some professional advice.

Are you saying the lack of overlap should not cause me to worry?

Thanks for you input it is appreciated.

 

[cotswoldbuilders]

Theres no headlap on any of the rows of tiles.
It must be relying on the felt to keep the water out.

 

[joe-90]

No. It should have at least three inches, probably four at that pitch. It's just we never hear of builders coming back and doing the whole roof again. Let us know what he says.

 

[freddiemercurystwin]

Joe doesn't know what headlap is and is the Forum village idiot btw.

That said, it'd be worth investigating the leak further before condemning the lot.

 

[suts89]

Joe doesn't know what headlap is and is the Forum village idiot btw.

That said, it'd be worth investigating the leak further before condemning the lot.

Well the leak is bizarre the only explanation i could come up with is that it is getting under the flashing. The flashing is below where i am standing to take the picture.

What are the long term affects of water on the felt though? Am i right in saying it is not really designed to get wet and then dry out over and over.

 

[SurreyRoofingEstimator]

They look to me a bit like a Sandtoft Penine slate or similar as I can see no interlock so they are double lap slates laid with a single lap. The felt must be keeping the water out to the rest of the roof so the felt may have dropped at the top edge or is getting through a side lap of there is any.

Seems to be getting more and more common that a builder is doing their own roofing at the moment rather than paying for a specialist. After the early 90's recession we ended up with a fair amount of work putting things right when the same situation occurred

#edit#

Just seen your comment about flashing being below where the piccy is taken from. Is it a side abutment to a wall? If that's the case it could be a soaker / secret gutter problem