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gjbalsdon · Joined: 23 Jul 2007 Posts: 27 Location: poole

Hi

I have a flat roof garage that butts onto the house. There is Lead flashing that goes onto the brickwork. I don't think it has been installed correctly to begin with as it doesnt go up the brick then in and then up again (if you follow).

Also the pointing appears to have been done with some sort of mastic and when you pull this out , it is all soft and wet, so as you can imagine we are now suffering from a few leaks when the rains comes in at a certain direction.

I intend to re-point this now, and having seen someone do it before they removed all the old "pointing", then filled the gap with silicon and then mortar on top of that. Would you advise doing the same to give me the best waterproof protection.

I do think that it will need replacing, but at the moment money is a problem, so a temporary measure for now is fine.

thescruff · Moderator Joined: 03 May 2003 Posts: 4348 Location: Bath

I assume its a cover flashing, perhaps a pic please.

The flashing will be no longer lengths than 7 feet, one edge will be turned to form an L about an 1". this is then pushed into the joint and wedged there with lead wedges, lead strips about 1" wide and folded over so it fits the joint nicely, it is then hammered in using an blunt instrument.

For longer than 7 feet lengths you overlap the ends by 6-8", then you point it all in with an 4-1 cement mixture.

gjbalsdon · Joined: 23 Jul 2007 Posts: 27 Location: poole

Hi

That is exactly what it is. So from your description, is this actually fitted in correctly then?

So I will continue with my pointing as planned then.

Cheers

thescruff · Moderator Joined: 03 May 2003 Posts: 4348 Location: Bath

I would say so provided it goes in the grove about an inch, is wedged firmly and turned down the wall to cover the upturn of the flat roof covering