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21st March 2008, 04:10 PM #1Amateur D-I-Yer
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Do no-eave gutters leak into house?
I am getting a single story, fibro stud wall extension built. It has no eaves, because of setback requirements from a sewer main. The roof has a relatively low pitch (5 degrees), and is corrugated zincalume.
I have heard that , in a big downpour, the gutter can overflow back into the ceiling.
Does anyone know if this is true, and how to avoid it.
Currently, the roofing iron is on, and the guttering is ready to install.
Thanks
Mark
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21st March 2008 04:10 PM # ADSGoogle Adsense Advertisement
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21st March 2008, 04:36 PM #2
Arent you supposed to put the gutter on first, then the tin?
Thats how its done on site..
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21st March 2008, 05:48 PM #3Member
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the project homes being built these days dont have eaves (i presume to keep costs down?!) i havent heard of any consistent leaking problems with this set up...
how big is the area of your roof feeding this gutter?
my suggestion is ensure the gutters are installed with atleast the min fall needed and keep them clean!
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21st March 2008, 05:55 PM #4
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21st March 2008, 06:04 PM #5
If the gutter clogs (dirt, leaves, hail even) it will most likely overflow inwards before overflowing over the outer edge. Solutions for this are to keep clean and use one of the gutters with the pressed overflow vents about level with the back wall height. That will allow some release before the level in the gutter becomes dangerous.
Pay a lot of attention to flashings and weathersealing of all doors, windows, etc on walls without eave overhang as they are much more exposed to storm conditions than they would be with 500-600mm of eave protection.
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22nd March 2008, 07:04 AM #6Amateur D-I-Yer
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22nd March 2008, 07:15 AM #7Amateur D-I-Yer
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Thanks for the advice.
Yes the builder has got the gutter with the vents. The supplied windows have pine reveals, so I primed them before they were installed, but I am still regarding them as a disposable item. I will build awnings over all windows and doors, though.
I just realised that, because of the design of the roof, the gutter drops about 150mm over 12 m, so that should help run-off. I guess it could put pressure on the low end of the gutter though. I mean if it back flows to house, that would be the spot.
Thanks again,
Mark
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24th March 2008, 07:41 PM #8Senior Member
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you may like to consider putting in a leaf eater or similar exit on the gutter
this will make the gutter stay emptier as there is no restiction on the water exiting
doug
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24th March 2008, 08:41 PM #9
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25th March 2008, 10:49 AM #10Senior Member
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This issue has been in the press a bit recently. this might be of interest.
http://www.smh.com.au/text/articles/...467388838.html
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25th March 2008, 11:15 AM #11
Doesn't matter how much fall you have if the water can't get away.
My gutters often overflow to the front in a heavy downpour, even with the regulation number and position of downpipes. In extreme cases, they also overflow to the back despite the overflow perfs in the front, but it just runs down the fascia and to the ground because I have eaves."I don't practice what I preach because I'm not the kind of person I'm preaching to."
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25th March 2008, 04:56 PM #12Member
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26th March 2008, 07:34 PM #13
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27th March 2008, 08:47 AM #14
It's not enough of a problem for us to worry about, but yes that would probably help.
"I don't practice what I preach because I'm not the kind of person I'm preaching to."