What product can I use myself on a flat concrete roof?
- Thread starter dpm_dpmartin
- Start date
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I was lost on the first post ^
Obviously got time on your hands..?
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Does this picture add any more clarity?
The parapet horizontal bit has been covered in Thompson's Water Seal - one coat - earlier today (http://www.amazon.co.uk/RONSEAL-36286-Thompsons-Water-TWSEAL5L/dp/B002SHNRHQ) but I've also bought 2 big tins of Thompson's One Coat Roof Seal (http://www.homebase.co.uk/en/homebaseuk/thompsons-black-one-coat-roof-seal---5l-946751) as they were cheaper at Wickes.
The area obviously needs something, if at least temporarily until I can get someone proper in.
The parapet horizontal bit has been covered in Thompson's Water Seal - one coat - earlier today (http://www.amazon.co.uk/RONSEAL-36286-Thompsons-Water-TWSEAL5L/dp/B002SHNRHQ) but I've also bought 2 big tins of Thompson's One Coat Roof Seal (http://www.homebase.co.uk/en/homebaseuk/thompsons-black-one-coat-roof-seal---5l-946751) as they were cheaper at Wickes.
The area obviously needs something, if at least temporarily until I can get someone proper in.
Oh, and - yes - it was only after I'd applied the Thompson's Water Seal that I read up that it says to not apply over a painted surface. So I've got no clue what it's doing up there now... probably eating all of the remaining black stuff away. I have no idea what that is, guessing it's not just normal black paint. Could be Sandtex.
The concrete or stone projection below the parapet is best called, to keep it simple: "a projecting eave".
As you suggested, It would be best if, at some future date ,you have a shallow slope of say sand and cement applied, and a flashing on top of the slope.
For the time being, if the eaves projection is not causing difficulties then leave it alone.
I guess that you got a guarantee from the roofers who did the flat roof and parapet - was the flat roof or parapet leaking before any of this work?
I dont want to be disheartening but perhaps you should get an independent roofing surveyor to examine the work?
As you suggested, It would be best if, at some future date ,you have a shallow slope of say sand and cement applied, and a flashing on top of the slope.
For the time being, if the eaves projection is not causing difficulties then leave it alone.
I guess that you got a guarantee from the roofers who did the flat roof and parapet - was the flat roof or parapet leaking before any of this work?
I dont want to be disheartening but perhaps you should get an independent roofing surveyor to examine the work?
The roof is rock solid (I reckon). The parapet wasn't part of the job. I am going to apply One Coat Roof Seal, thick black stuff, and look towards a shallow slope... for the projecting eave... at some future point. I have 4 x 5 litre tins of this stuff... £120 worth. I want to do something before winter and when it may be too late.
Yes, I've got a guarantee for the work on the roof... and advice regarding a proper schedule of maintenance.
Yes, I've got a guarantee for the work on the roof... and advice regarding a proper schedule of maintenance.
Its your money ... but if "the roof is rock solid" how come you spent all that money on a new roof covering?
FWIW: i'd suggest returning whatever tins of sealer you can and get your money back.
FWIW: i'd suggest returning whatever tins of sealer you can and get your money back.
Sorry, I mean the new covering is rock solid. The roof is probably OK too, but flat and about 140 years old. Thanks for all the useful input. I'm happy with the product I've selected.
Its actually a projecting cornice but staying away from the classical order terminology and keeping it simple - a projecting eaves (which its called in American Gothic carpentry) will work for a DIY'er.
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Both projecting cornice, and projecting eaves are used in American Gothic carpentry - the flat top as seen in the OP's pic would have a sloping crown.
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