Fibreglass roof bond

[pgtips]

Hi,
I wonder if anyone could help with the right product advice .

Our old lead flat gulley roof was leaking so had a fibreglass roof which was told would last. It's a bungalow so easy to access.

At the end of the gully it's not flowing away from the building, it slopes back so water sits and isn't ideal. We have a leak in the area which I paid a roofer to fix. £425, on the roof for 10 minutes with a sealant gun and some cement.

still have leak , he's now saying couldn't fix due to moss probably hiding a cracked tile so I've cleaned it.

In the meantime on the flat roof bit I would like to get the flow away from the end to the gutter, add a angle/drop to flow away from that end.

So raise and angle it. But how to go about this? What bonds to fibreglass.. more fibreglass? I need to ensure it's sealed forever.
Sofit/ facia board with a rubber mat over the top bonded.? With what though? Sealants have a limited life.

I'm competent and capable of stripping some of the roof back (amazing what you can learn when you've been left a bit out of pocket)

It's an odd situation, sort of like it's sinking back and around the edges. It's stable.
The leak inside looks to have been from the left hand side as it slopes down/joins but nothing immediately visible.

Thanks for any advice on long term roofing bonding, /seal
Pg

 

[Harry Bloomfield]

We have a leak in the area which I paid a roofer to fix. £425, on the roof for 10 minutes with a sealant gun and some cement.

I'm not a roofer, but you definitely got robbed there, he was certainly not a roofer.

A little water sitting on the roof, might not be a problem, but those slipped tiles need addressing properly.

 

[datarebal]

As above two tiles slipped leaving no head lap is a leak. Also the mortar that has been jammed here and there can dam water and cause a leak.
Imo grp is for boats . To get the correct fall you'll need to adjust the gutter soles .
You be better off getting a good felt flat roofer in the torch on the new box gutter .
Too many people watch you tube videos and think they can copy what they have seen ..

 

[catlad]

If you are going to have a go yourself then I suggest getting a piece of rubber approx 4 foot wide by the length of your valley.

 

[pgtips]

Rubber. What's the best way I bond to the fibreglass, I don't want water getting underneath it.?

 

[cdbe]

He's suggesting, as you seem to need to tackle this yourself, that you fit a new EPDM "roof" covering on top of the fiberglass (it's not difficult for a competent diyer) - this will extend 300mm up the roof slope under the tiles so water won't get under it. The small puddle is harmless so I'd just leave it. Probably use the water based adhesive on the flat part and the contact adhesive on the sloping parts. If you approach it right you could probably get it to sit fairly well in the two corners without needing patches.

 

[noseall]

You be better off getting a good felt flat roofer in the torch on the new box gutter .

Agree. We do have access to a brilliant (felt) flat roofer, so it's always our go-to regards flatties.

GRP -