chocolate_o_brian

iTrader: (22)

got a bit of a leak where the roof meets a wall round the back of my house.

terraced house, so the 4 rooms downstairs are in a line, and the 3 rooms upstaris are too. as the bathroom is downstairs (the 4th room) the 3rd bedroom upstairs finishes above the kitchen. make sense

the roof above the bathroom meets the bedroom wall, and there is a leak somewhere. basically i believe it needs sealing, as when its normal rain, nothing, but on a downpour, it hink water is getting in the visable cracks.

what should i use to seal the end of the roof to the bedroom wall? had a look in my local wilko's but nothing really stood out as useful. i can climb up myself and apply whatever it is i need, but suggestions on what i can use would be a start

cheers in advance, oh and if needs be can take a piccy to explain better.

andy

AudiLover

buy 100tubes of fernox and apply it when dry

chocolate_o_brian

iTrader: (22)

anyone got serious suggestions. i aint buying 100 tubes of anything. surely theres something in a tub that can be applied?

uploading a couple pics now to show the cracks.

AudiLover

Once I have seen pics I can give serious help.

100 tubes of fernox only £400. Really good water sealent!

chocolate_o_brian

iTrader: (22)

were on different wave lengths here. i have a few cracks in the old sealant about 2-3 metres long max.... 100 tubes is really not necessary mr lobba-lobba

AudiLover

The tubes im talking of only contain like 15ml worth of sealent

chocolate_o_brian

iTrader: (22)

i know, i know, needs a clean up to get all the green **** and mud off. gonna give it a brush down when i find what im looking for.

AudiLover

Get some lead up there.

chocolate_o_brian

iTrader: (22)

look ive had the banter with you, now if you havent anything useful to say, pi$$ off, your annoying me now, and im asking for genuine help, which you are certainly not contributnig too.

AudiLover

Lead is what roofers would put there......

chocolate_o_brian

iTrader: (22)

yep probably, but im after something i can apply myself. looking for suggestions on a sealant, not a new roof.

AudiLover

4th product down

Damp Proofing products by Lectros International

alcazar

iTrader: (2)

Andy: can you get hold of any bitumen? Heat in in an old old pan until it melts, all windows wide open, then take it out and apply it to cracks with an old spoon?

Or what about car spray underseal? Applied from close in, straight into the crack no mess, good penetration.

Alcazar

john_s

iTrader: (1)

You could try Flexacryl (should have it in stock at your local builders merchant).

It's used for patch repairs to flat roofs, but it should patch that for you.

John.

chocolate_o_brian

iTrader: (22)

bitumen, is that like tarmac you get on school roofs?


where could i get flexacryl from? was considering a pop to my local b&q in the morning.

alcazar

iTrader: (2)

Try Jackson's on Rowland Road, Travis-Perkins on Grange Lane North etc. PROPER builder's merchants. BOTH only open until 1200 Saturdays though

Alcazar

chocolate_o_brian

iTrader: (22)

may do when ive been to the chiropractors in brigg tomorrow morning. cheers alcy

OllyK

Firstly that mortar needs to come out, it's cracked and will just wick water in. You then want to put up either a lead or bitchumen based gulley liner and tie in to the existing wall. You may want to get a pro out to do it if you are not up to the job yourself, one thing is for sure a tin of Ronseal water repellant isn't going to do what it says on the tin for this one!

David Lock

I agree with this but is that mortar? Looks an odd colour like some kind of dried up bitumen?? Also wouldn't there be some flashing underneath all that which should be doing its job? May be that has come adrift somewhere causing a leak. Needs some investigation before wasting effort on pouring in sealant.

Also check there is no blocked and overflowing gutter above (out of picture).

Or move

StickyMicky

or the old school stuff you put on with a paintbrush, proper "claggy" tar based stuff, would work a treat.

chocolate_o_brian

iTrader: (22)

i dont believe the plastic coating under the tiles is leaking. the roof was completely relaid only a few years ago. i believe my plan of action may be to pop to said builders merchants and ask them. maybe print couple pics off and explain where the leak is coming from...

andy

MJW

Get a roofer to fit a lead flashing - he'll cut a slot in the rendered wall and wedge the lead in, then dress it onto your tiles, shouldnt be too expensive

jonc

I second that, get it done properly with lead, its the best solution in the long run and will last longer than any sealant.

David Lock

But shouldn't that have been done already when new roof was put on? But I guess it wasn't and that cement/bitumen "seal" which is now all cracked was used instead??

AudiLover

cowboys have struck yet again

njkmrs

Roof leaks dont go away with a bit of patching up .Trust me .I spent a year doing different things to sort out a problem .In the end had to get the pros in to sort it properly .
Should not cost too much to put yours right .Couple of hundred I should imagine .End of problem .

Bodge it and regret it .Will damage interior etc,etc if not done correctly soon .

chocolate_o_brian

iTrader: (22)

see what people are saying regards getting a pro in to look at it. worth considering.before me, my mother owned the house, and i have lived in it since 1991. dont think whoever did the roof was a cowboy, but it was only a few years ago.

like i said it only leaks under heavy rain, which to me suggests the extra rainfall seeps into the cracks. inside the house, where the kitchen ends and the back door is, there is a small steel beem (covered ofcourse etc), which then has brick above it. this is where the wall and roof meet, and after a good downpour, you can see the wood/plasterboard that cover said beem start to soak up the excess water and drip. after the rain stops, the board dries out. so from seeing a regular pattern, i was confident its just the seal outside that is being penetrated.

il explain this to a builder if thats what i need to have done. rather fork out in a few weeks time than have a cheaper alternative last a shorter period of time.

andy