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Subject Author Date
Flat Roofing Material Hambone 10-05-2006
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Posted by Hambone on October 8, 2006, 6:12 pm
Thanks for the responses so far. The flat roof will be over our living
room and kitchen - so I want to do it right. We are in Tulsa, OK.

Thanks!

longshot wrote:
>>>Thanks.
>>
>>asphalt shingles can be put on a 2/12 pitch provided you have two
>>layers of 30 lb felt with tar in between or more likely, ice and water
>>shield.
>>
>>However, on a pitch of 1/12 you will want a EPDM membrane roof (aka
>>rubber). find a roofer who has worked with it and you won't have any
>>trouble.
>
>
> you could use rolled asphalt for about 10% of the cost of the rubber
> roofing. what part of the world is this project in?
>
>

Posted by Glenn on October 8, 2006, 7:42 pm
I would go with the commercial version (heavy) of hot mop. No
gravel so when it does leak *years* from now, you can at least
find it.

> Thanks for the responses so far. The flat roof will be
> over our living room and kitchen - so I want to do it
> right. We are in Tulsa, OK.
> Thanks!
>
> longshot wrote:
> > > > Thanks.
> > >
> > > asphalt shingles can be put on a 2/12 pitch provided
> > > you have two layers of 30 lb felt with tar in between
> > > or more likely, ice and water shield.
> > >
> > > However, on a pitch of 1/12 you will want a EPDM
> > > membrane roof (aka rubber). find a roofer who has
> > > worked with it and you won't have any trouble.
> >
> >
> > you could use rolled asphalt for about 10% of the cost
> > of the rubber roofing. what part of the world is this
> > project in?


Posted by John Reddy on October 9, 2006, 6:49 am

> I would go with the commercial version (heavy) of hot mop. No
> gravel so when it does leak *years* from now, you can at least
> find it.

No. Spend the extra money for peace of mind. Go with the rubber
membrane (EDPM) as suggested earlier. You can get one with a 20 year
warranty.

Which would you prefer, a 20 year warranted roof or one that's easy to
spot leaks in? Duh!

Posted by Robert Allison on October 7, 2006, 2:53 am
Hambone wrote:
> Hello - we are adding an addition to our modern home and it will have an
> almost flat roof. I am so hesitant to put a flat roof on with all the
> problems I have read about, but the wife wants it and it will look nice.
> We will have *some* pitch on the roof - likely around 1/12 or less.
>
> So the questions:
> - Any recommendations on how to not get leaks?!
> - Any recommendations on what to use for roofing material? I have read
> that 'normal' shingles can't be used for less than 3/12 pitch.
>
> Thanks.

If it were me, I would go with metal. Standing seam if you
can afford it. Lasts longer than you will, probably.

You cannot use asphalt shingles. The slope is too low.

EPDM (as mentioned elswhere) would be another solution, and
the lowest possible cost initially would be roll roofing (you
will have to repair and/or replace it often).

--
Robert Allison        
Rimshot, Inc.
Georgetown, TX

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