Noticed water in bay window

mickymunn

Hi all

Just noticed water sitting on the windowsill and looked up and saw a wet stop in the bay ceiling. It had been raining heavy so went outside to look at the window and noticed the cement joint is partly missing, is this where the rain has blown in from?
And whats the best remedy?

Posted a pic here http://tinypic.com/r/11m6gbc/5

Cheers

mickymunn

Anyone?

Cheers

wallbash

I also have a small leak in my bay window, the driving rain from the 'wrong' direction has lead to many new problems.

Is the cement joint the cause ??? easy if it is , a little sand and cement , job done. BUT the leak could be coming from somewhere else, so fill and then keep a close eye, I haven't any obvious problems so will have to keep looking.

AlexMac

Yes, it's amazing that such a minor failing in the pointing above the flashing should cause much of a leak, but driving wind and rain can be surprisingly penetrating. The remedy's to re-point the dodgy area; but, as it seems daft to buy a bag of sand and cement or readimix for such a small job and as (in my amateur experience) it's not easy to get an exact colour match (not that this matters) nor a neat result unless you're handy...

I'd just get a tube of clear silicone mastic and fill the offending gapbetween the lead and the brick. Virtually invisible.

Rodney_Trotter

AlexMac wrote: »

Yes, it's amazing that such a minor failing in the pointing above the flashing should cause much of a leak, but driving wind and rain can be surprisingly penetrating. The remedy's to re-point the dodgy area; but, as it seems daft to buy a bag of sand and cement or readimix for such a small job and as (in my amateur experience) it's not easy to get an exact colour match (not that this matters) nor a neat result unless you're handy...

I'd just get a tube of clear silicone mastic and fill the offending gapbetween the lead and the brick. Virtually invisible.

And do you consider that to be a long term solution?

BargainGalore

As said driving rain can easily get into the house if there is a slightest of gaps, I would personnel re point that but you can use grey mastic that is designed for the job. On my bay it has the stuff which I inherited when I got the house hasn't let any water in, in 7 years I have lived here

Maybe something like this

http://www.ebay.co.uk/itm/Lead-Flashing-Mastic-Waterproof-Mortaring-Silicone-/360214608957

plumb1_2

Take out the cement pointing and fill the gap with lead Mastic. Lead will move with weather conditions. Cement wont move, hence it cracks and falls out. lead sealant is the way to go.

Dan-Dan

The stuff as per bargain galore ?
What's the best tool for removing cement?

plumb1_2

Dan-Dan wrote: »

What's the best tool for removing cement?

Plugging Chisel or bolster. but make sure you dont remove the lead wedges holding the lead in place.

mickymunn

thanks for the coments guys, spoke to a friend earier about it and he said the lead mastic stuff in the tubes was best bet.
Just remove the rest of the cement joint.

Agree??