Fibre glass roof overflowing next to outlet

[trevorbayliss]

I have an outlet on a bay flat roof in the rear left side. Water flows towards the wall of the house and then down to this outlet. However, some water spills around the front side of the outlet and runs of the roof edge, causing dripping. The front edge is flat, with no raised profile.

Is there an easy way to just hold the water back a little in this are so it naturally all falls into the gully.

I thought about cutting some lead and forming it into a long thin tube and gluing this to the edge of the roof to create a small barrier.

Any other solutions ?

 

[trevorbayliss]

This is the roof

 

[freddiemercurystwin]

Is this a DIY roof or did you pay someone?

 

[noseall]

This is the roof

It looks amateurish. As per Freddie - is that a pro' job?

 

[trevorbayliss]

DIY

 

[freddiemercurystwin]

Can't you just fibreglass an upstand on?

 

[trevorbayliss]

The lead roof had no upstand, so we just copied what was there. The water is not coming over the edge anywhere else. It's just that the outlet is raised up a little so pushed the water to the side and then off the edge of the roof. I just thought a bit of lead would hold the water back around the outlet area. No one will see it.

 

[freddiemercurystwin]

I would wrap a bit of plywood, probably a few layers of 12mm glued and screwed together, with sloping sides and then fibreglass that to the edge to make an upstand.

 

[trevorbayliss]

Ok thanks will give it a go

 

[freddiemercurystwin]

One pf the elements of my job is visitor attractions including aquariums, when we line the tanks it's often fibreglass, the window reveals are often formed with plywood wrapped in fibreglass.

 

[trevorbayliss]

Ok I thought I might use a machine triangle piece of length that you can get in the timber merchant. Prob only need 30cm worth, but that 20x20mm size will be enough to divert the water away from the edge and into the outlet. Glue it down to the fibre glass with stixall then cover it in bandage and add the FG and top coat.