Build up a super gutter on one end?

I have a super gutter that is made of asphalt. The length of this gutter is about 35 feet and there is a drain to a downsprout below at one end. The gutter is not sloped steep enough and there are a couple of "dips" along the way that mades puddles.
I would like to recoat the gutter with some elastomeric coating, but I am trying to think of a way to see if I can "build up" one side of it and reshape the slope to make it smoother and steeper. I cannot think of a way to do that. I know there are rubberdized compound I can use to fill in the puddles, but I cannot think of a way to reshape the slope of the gutter.
The only think I can think of is to apply the coating gradually and progressively. If I apply a complete coat first time, then from the drain I back of 1 foot, apply another coat from there to the beginning of the gutter, then back off another feet and repeat, then by the end I would have 35 coats on one end and one coat on the other. That would be very time consuming and extremely costly. Any thoughts and ideas?
Thanks in advance,
MC
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Without seeing it not really but...
On flat roofs, roofers will occasionally use extra layer(s) of foam insulation on one end before recoating/roofing to make a little bit of slope. Something similar might be possible in your case.
The alternative idea that comes to me would be to redo the whole thing w/ a commercial gutter and eliminate the problem from the source...
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wrote:

This might help:
http://i173.photobucket.com/albums/w67/143house/gutter/P1000994.jpg
It is hard to redo with commercial gutters. There is no where for the metal flimsy gutters to be mounted.
Thanks,
MC

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It is hard to describe but here is a pic to illustrate the situation:
http://i173.photobucket.com/albums/w67/143house/gutter/P1000991.jpg
The gutter is part of the roof. Where the roof tiles end on the left and the overhead enclosure ends on the right ties into the fascia board, in between there is about a 16 inch membrane and this is the "supergutter" that drains the water into two roof inlets that takes the water to the downsprout out to the yard.
There is no place to put in a commercial gutter the way it is now.
Thanks,
MC
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That could be changed or somebody could manufacture a custom piece to fit.
The basic problem is the section is too long w/o a center drain outlet and no slope was apparently designed in.
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Miami, over the years, you always have the most interesting problems on this newsgroup! Jack up one end of the house an inch, pour a thick layer of rubber. When it dries, lower the house, bingo :-)
--
Dennis


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On May 22, 9:02 am, snipped-for-privacy@SPAMwowway.com (DT) wrote:

He's had some doozies, hasn't he?
The drainage and what's he's described in the past indicate a house designed for appearance but not a lot of consideration for function in many areas, apparently...
Friend in TN inherited one w/ similar "issues"...has had many drainage problems as well owing to trying to hide any hints of there having to be such mundane things as drains and gutters...where it rains, one had best plan on having a place for it to go.
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lol good one!
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Smoother and even slope is not too ahrd, but steeper? I'm afraid steeper will be done only as you describe. Or similar, e.g. laying fiberglass or tar paper (roofing felt) as you described.
For smoothing... Can you find an elastomeric leveling compound?
Spread minimal coat of elastomeric coating that will puddle into low spots but not run out of the gutter. Let it cure recommended time for 2nd coat. Recoat with proper thickness coat.
sdb
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Possibly I can use laying fiberglass progressively. It's worth a try.
I have seen a product called "puddle blaster" that may fill in low spots, may give it a try.
Thanks,
MC
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