Pooling on new flat roof problems with roofer!

[datarebal]

The outlets tiny anyway, and some lead flashing to the perimeter would not have hurt..

 

[freddiemercurystwin]

Unless you answer some of the questions you have been asked there doesn't seem much point continuing with the thread. Getting a 'surveyors report' is just throwing away more money. If the roofers a dodgy one the threat of a 'report' and legal action will be like water off a ducks back anyway. The only kind of report worth anything in such a case would be a report carried out by an independent reputable roofer who's instruction to produce such a report is agreed by both you and the roofer.

 

[daveholliday]

pooling is normal , older flat roofs were literally flat , you could put chipping up there to raise the water leve allowing it to move off.

just a thought,

 

[Nige F]

As the roofer has only replaced the felt and not the roof structure, this would suggest that the pooling problem has been there for years. I can't say that I think your roofer is at fault here, if all he has done is replace the felt.

I agree with part of that answer. The pooling problem may have been there for years, it most probably was! But I would say most professional roofers on here would have checked it before starting work and advised that a new deck was laid with a slope to the outlet gulley. Or am I being too optimistic. ? Suggest you get a surveyor in quick to give you a report in writing.

You ARE being too optimistic Just get that " surveyor " and without giving him any clues - see if his superior brain picks up the fact that the roof is wrong . I`m with the roofer on this one . Dammed if he does - dammed if he doesn`t .

 

[Cumbrianroofer30yrsexp]

The felt work is of poor quality and whoever felted it has started felting on the wrong part of the roof,He started where he should have finished.Also the copings should have been removed,felted up/under then copings refixed.Saying that the roofer is not liable for the roof ponding not unless you asked him to stop it ponding in the first place.The best way to do this roof would have been do away with the parapit wall all together,check the roof for run off and "if" need be re-board and form run off but me thinks removing the parapit wall would most probably have stopped the ponding.

 

[jsmithroofing]

I couldn't help noticing that he has not covered the upstands to the wall with any lead he seems to have just pointed in the top of the felt which in time will leak.As for the pooling he could have flooded the roof with bitumen which would have levelled off the area and then felted on top of it

 

[Cumbrianroofer30yrsexp]

I couldn't help noticing that he has not covered the upstands to the wall with any lead he seems to have just pointed in the top of the felt which in time will leak.As for the pooling he could have flooded the roof with bitumen which would have levelled off the area and then felted on top of it

Indeed flooding a roof with bitumin in some cases can stop the ponding(done it before) but the only problem in this instance would be you would need so much bitumin the weight of all that bitumin may just cause the roof to dip in no time at all.You could then be back at square one.

 

[jsmithroofing]

Yeah good point. It may be worth looking into cutting in an outlet in the center of the roof provided you can gain access from underneath and the soil/drainage pipe can run somewhere. failing that the correct way would be to strip the roof and decking and cut some firrings in to achieve the right fall to the outlet. but please get him to at least cut in a lead flashing to the parapet wall!!

 

[flatroofer666]

The roofer should of got the outlett a lot lower and formed a propper lead spitter...thats a stupid amount of water and could be cured at least 75% by 1st sinking the lead outlet into the board 10mm and not felting all the way into the wall, so in effect you have a small step down where the lead is....I can also see future problems with water penatration through the coping stone which idealy should of been capped with a brindle colour mineral to match brickwork but stopping 50mm from front edge so it cant be seen from ground level..As been stated by cumbrianroofer its a very poor quality job imho

 

[Cumbrianroofer30yrsexp]

The roofer should of got the outlett a lot lower and formed a propper lead spitter...thats a stupid amount of water and could be cured at least 75% by 1st sinking the lead outlet into the board 10mm and not felting all the way into the wall, so in effect you have a small step down where the lead is....I can also see future problems with water penatration through the coping stone which idealy should of been capped with a brindle colour mineral to match brickwork but stopping 50mm from front edge so it cant be seen from ground level..As been stated by cumbrianroofer its a very poor quality job imho

Sound advice.