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Old 02-18-2011, 08:31 AM   #31
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leaks from ice dams


I wish my house was designed to make the first two work properly together (sigh).
/j

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Old 02-18-2011, 03:45 PM   #32
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leaks from ice dams


How long are you eve edges? You could put a 8 or 10' 60mil EPDM on the eve edges, then overlap that about 2' with shingles. Should get you past all of your problems. The black EPDM will help melt some of the snow/ice off that is if the sun ever see's that side of the house.
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Old 02-18-2011, 03:49 PM   #33
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leaks from ice dams


1985gt: Thanks for the response. This sounds very encouraging. I'm not sure what you mean by eve edges. The roof has a 24" overhang all around. I googled EPDM and it looks like rubber roofing? You would put this over the shingles, or replace them? This sounds similar to the earlier suggestions to rip out the bottom 4-8' of shingles and replace with rolled roofing.
THANKS!
/j
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Old 02-18-2011, 04:03 PM   #34
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leaks from ice dams


Yes EPDM is rubber roofing. What I mean by eve edges is the edge where you gutter is, how long in lenght is it. Im asking this because EPDM come in rolls of XXX amount long. I was trying to think of a way to do it with out having to have any seems. In this case I would stay away from any self adheard modified roofing, you dont really want the seams. You could always have someone mop on a 3ply with mineral surface cap sheet. In this case I think EPDM would work great and be some what cost effective.

This is what I would do, and this is just me. Tear off the shingles along the eve edge say 12' up. dont worry about the Ice and water shield as you will go over it. Lay down a 1/2 coverboard. Use the screws and plates that are for this. on the top edge us a 1/2 x 6" tapered edge strip to smooth out the bump. The reason for coverboard is so A. no nails can come and pop up underneath the EPDM, and B. To give a good surface to glue too. Then you would glue your EPDM down to this coverboard. At the top edge of the EPDM on the underside lay a bead of Water Stop, this is a caulking that really doesnt set up it will keep from any water getting in from behind. On top that installl a 6-8" counter flashing. Prefinished steel of course. This is where you will start you starter course of shingles. ON the bottom edge of epdm install same Water Stop between the epdm and gutter edge. Install your new drip edge, not gutter appron, drip edge atleast a 3" face and 3" flange, this will be striped in with coverstrip. If the roofer you are currently talking to doesnt know about any of these items find a good flat roofer. Doing it this way should take care of all of your problems. I just looked at a roof that has the same thing going on. It was the Ice and Water shield that had broke. It was a about a 2:12 slope so now they want EPDM.
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Old 02-18-2011, 04:44 PM   #35
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leaks from ice dams


no gutters, 24" overhang. ~30' on the right , about ~40' on the back.

To be honest, I don't understand enough of the terms ("coverboard","tapered edge strip","counter flashing",), but you sure sound like you know what you're talking about. I will run this by my roofer, and if not, find a roofer who does understand it. (as soon as the snow melts 8-}).

Thanks very much - this is going to by my spring project.

/j
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Old 02-18-2011, 06:25 PM   #36
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leaks from ice dams


Do alot of looking on the internet. If you know the roofer he should have no problems being honest with you. I know I wouldnt want to work on something only to have it come back and bite me. If you have any questions feel free. Some of the place's you might go looking is at versico, firestone, Johns manville. Coverboard is a 1/2" thick compressed woodfiber. the tapered edge strip is the same material only 6" wide and goes from 0" to 1/2". Counterflashing on this application would just be a flat piece of metal with a hem and a kick.
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Old 02-18-2011, 06:27 PM   #37
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leaks from ice dams


I'm putting together my notes and will meet with him next month (nothing we can do until the snow melts) - Your suggestions will be topic #1.

THANKS!
/j
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Old 02-18-2011, 07:48 PM   #38
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Good luck! hope it turns out good for you.
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Old 02-25-2011, 08:52 AM   #39
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leaks from ice dams


Here's the deal on ice and water shield.

All the manufactures of the sticky stuff have there warranty stated this way,
Wind driven rain and ice are warranted when properly installed to prevent leaking.
Standing water on top of an ice dam resulting in water intrusion is not covered under the warranty. They comment it will help reduce the chance the of water intrusion but will not prevent it.

Like others have mentioned the issue is with your ventilation and insulation. On homes with ice dam problems before I give them a bid for full replacement I spend half an hour or so in the attic. This gives me time to inspect for baffles on the eave, and vent placement on the ridge. Also inspect all connections and fittings for exhaust vents.

On several occasions have seen bath and kitchen fans not hooked up or loose. Have also seen a number of times insulation stuffed tight to the eave.

Have your roofer or another roofer check out the attic before they go on the roof next time.
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Old 08-10-2011, 10:27 AM   #40
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leaks from ice dams


So here's the resolution with the roofer.

We're going to put Ice Belts on the roof (for a price much less than professionally-installed ice wires). If that doesn't work, then he'll concede there's something wrong under the roof (wherever it fails) and rip-up and redo for the cost of materials (or better- we'll see).

He believes ice belts -> no ice dams -> no problems. that really should be true, I think
/j

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