Roofer Help

helimachoptor

Hi guys, In my house I've a converted garage, the neighbours built an extension above their garage which encroaches onto our single storey garage (long before we bought)

Long story short we developed a leak, so we have the roof line and sealed.. didnt make any difference and we had the roofer out a few times but when it rained we kept get a leak in the same place.

The roofer said it was an issue on the neighbours side, so our neighbour has paid this guy money to fix the issue but it hasnt.

Any recommendations for a quality guy in South Dublin?


This is the external view to show where the neighbours extension is over our garage (now converted)


This is the leak

listermint

Any shots of the roofline, perhaps we can spot some flaws.

Could be cracking in the render on their side.

helimachoptor

listermint wrote: »

Any shots of the roofline, perhaps we can spot some flaws.

Could be cracking in the render on their side.

Yeah i can get some and post later.

Fwiw, neighbours are not experiencing any leaking

listermint

helimachoptor wrote: »

Yeah i can get some and post later.

Fwiw, neighbours are not experiencing any leaking

They wouldn't be if is broken through the render and running down their outside wall into your roof space

the_pen_turner

where is the picture with the telly in relation to the party wall. is that corner at the front, back, in the middle somewhere.

helimachoptor

the_pen_turner wrote: »

where is the picture with the telly in relation to the party wall. is that corner at the front, back, in the middle somewhere.

The wall to the left of the TV is shared with the neigbour. Their garage is on the otherside, wihile they have an extension above their garage which encroaches onto the top of our garage.

Will put up a picture of the roof in a bit

helimachoptor

two pictures are of the flatroof over the leak. The obvious question is, is the join to the lower part causing the leak. We don't have a leak on the otherside of the TV wall. The area at the join has been sealed a few times in different ways.

leinster93

I may be shot down here by real pros but my solution has worked. Sorted last August. No leaks.

Bought three large tins of bitumen 5l @ €22. Wait for a complete dry day and swept the roof area where I was goin to put bitumen mastic. Cleaned it of all gunk. Got a trowel and lathered the bitumen on to the whole area where there were joins. Sloped the bitumen away from the house.
Has worked. 6 months on. Looked at it recently and its holding very well.

helimachoptor

leinster93 wrote: »

I may be shot down here by real pros but my solution has worked. Sorted last August. No leaks.

Bought three large tins of bitumen 5l @ €22. Wait for a complete dry day and swept the roof area where I was goin to put bitumen mastic. Cleaned it of all gunk. Got a trowel and lathered the bitumen on to the whole area where there were joins. Sloped the bitumen away from the house.
Has worked. 6 months on. Looked at it recently and its holding very well.

That's been done a couple of times. Our roofer says it's the neighbour causing the leak but he's done stuff at their cost but the leak continues and is probably worse now than it's ever been

...__...

6 inch flashing and torch on going the opposite might cure it but to really sort it a new fiberglass roof.

you can see it pooling in the middle which suggests theres no drain off on it.

listermint

I'd go out on a limb and say that roof pools extremely badly when there is a downpour .

I'm not convinced your neighbors has anything to do with this.

Your patching over a poor bitumen roof thats completely flat. Theres a reason this method isn't used anymore , because bitumen felt is crap for this purpose .

For a short fix the posters above method would work . Long-term you should consider a prober strip back job.

the_pen_turner

do you own both flat roofs

helimachoptor

the_pen_turner wrote: »

do you own both flat roofs

Yes.

Thanks for the other replies.

Any idea of costs for a fibreglass job?

the_pen_turner

not sure on the cost of fiberglass but get someone specialised in it. its too easy to mess up.

I would guess the problem is where the two meet and going into the corner. its a pain to flash in that point , especially with the other roof flashing coming in on top.
it looks like there have been a few fixes tried in that area.


roof is really flat. I would raise both roofs up to give a good fall. and make them all one roof

leinster93

A fibreglass roofer will charge in the region of €50 per sq m including trims which is what I paid for a 25 sq m workshop.There are cheaper. Lowest quote i got was 40.

U could use a dye in a bucket of water on the roof and see if it leaks through.