Ice & Watershield Step Flashing? - Roofing - Contractor Talk

Ice & Watershield Step Flashing?

 
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Old 06-01-2010, 02:16 PM   #1
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Ice & Watershield Step Flashing?


Do you guys include ice and watershield under the step flashing as a standard feature?
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Old 06-01-2010, 02:35 PM   #2
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Re: Ice & Watershield Step Flashing?


Standard. I preflash all areas that will be later flashed with metal. This includes around skylights, chimneys, walls, pipes, any penetration, any area that will later receive metal. Some people same it's a band aid, some old time roofers say it's cheating, I say it's water tight and very cheap insurance. Cost? It adds $75 to an average residential job, sometimes more sometimes less.

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Old 06-01-2010, 04:26 PM   #3
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Re: Ice & Watershield Step Flashing?


Only around skylights (Velux asks for it) and chimneys.
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Old 06-01-2010, 04:42 PM   #4
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Re: Ice & Watershield Step Flashing?


I always do on tear-offs and usually on new construction as a temporary dry-in. And always on skylights.
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Old 06-01-2010, 07:11 PM   #5
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Re: Ice & Watershield Step Flashing?


everywhere!!!!and cement !!!!!!
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Old 06-02-2010, 08:15 AM   #6
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Re: Ice & Watershield Step Flashing?


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Originally Posted by Andy@Aarco View Post
everywhere!!!!and cement !!!!!!
omg
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Old 06-02-2010, 10:10 AM   #7
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Re: Ice & Watershield Step Flashing?


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everywhere!!!!and cement !!!!!!
You ice shield the entire roof deck in lieu of felt paper? I have had condensation problems when ice shielding the entire deck. I only do it when the customer request and make for darned sure to super charge their ventilation.


I forgot to mention valleys. We ice shield our valleys as well.
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Old 06-02-2010, 12:33 PM   #8
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Re: Ice & Watershield Step Flashing?


Quote:
Originally Posted by MEL View Post
Do you guys include ice and watershield under the step flashing as a standard feature?
In certain areas yes. If the siding underlayment and roofing is installed correctly it isn't neccessary in all situations.

We always do bottom 6 feet and valleys on anything heated.
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Old 06-02-2010, 11:23 PM   #9
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Re: Ice & Watershield Step Flashing?


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Originally Posted by MJW View Post
In certain areas yes. If the siding underlayment and roofing is installed correctly it isn't neccessary in all situations.

We always do bottom 6 feet and valleys on anything heated.
Are you running a third partial roll to get to 6 feet? So far can only get two rolls to get to 5.5ft. What's the secret?

J/K, spoken like the adjusters... J/K again, see it on a lot of contracts.

I agree with Thomas on this one. We both can get made full of all we want but I like the sticky stuff.

BTW, Velux's new skylight comes with a i/w type product that you must use to get the 10 year leak warranty.
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Old 06-03-2010, 07:23 AM   #10
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Re: Ice & Watershield Step Flashing?


Quote:
Originally Posted by dougger222 View Post
Are you running a third partial roll to get to 6 feet? So far can only get two rolls to get to 5.5ft. What's the secret?

J/K, spoken like the adjusters... J/K again, see it on a lot of contracts.

I agree with Thomas on this one. We both can get made full of all we want but I like the sticky stuff.

BTW, Velux's new skylight comes with a i/w type product that you must use to get the 10 year leak warranty.

Lol. I just realized that the other day. Now I may use that as a selling tool.

I put in 4 new Veluxs' in april. They were different since I last put them in but I tell you what, I liked them a lot better.
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Old 06-03-2010, 08:13 AM   #11
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Re: Ice & Watershield Step Flashing?


Quote:
Originally Posted by dougger222 View Post
Are you running a third partial roll to get to 6 feet? So far can only get two rolls to get to 5.5ft. What's the secret?

J/K, spoken like the adjusters... J/K again, see it on a lot of contracts.

I agree with Thomas on this one. We both can get made full of all we want but I like the sticky stuff.

BTW, Velux's new skylight comes with a i/w type product that you must use to get the 10 year leak warranty.
It's 3 ft wide.....are we supposed to have an overlap or what...


Most guys seem to use a ton of it for re-assurance. My Dad still says, "it makes a bad roofer a decent roofer".
It definitely has it's place but these codes are a little ridiculous IMO.

I also have a piece of Certainteed sand I&W on my deer stand floor. It's been in the weather for 3 years now and it actually holds up much better than I thought it would.

True about the Velux. We just got some flashing kits last week and they came with small rolls of sticky paper.
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Old 06-03-2010, 08:56 AM   #12
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Re: Ice & Watershield Step Flashing?


I have seen ice shield, just like modified bitumen, on 36" rolls and 39" rolls.
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Old 06-05-2010, 10:54 PM   #13
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Re: Ice & Watershield Step Flashing?


Speaking of ice shield, whats the difference between GAF's storm guard or weather watch??
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Old 06-06-2010, 08:38 AM   #14
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Re: Ice & Watershield Step Flashing?


weather watch is granulated and is for use under shingles, where storm guard is film surface and can be used in hi temp applications like under a metal roof.

I don't do much roofing, but I typically carry some storm guard to use as soft flashing around skylights, under step flashing, etc. Its a little more expensive than granulated, but it bond to itself better than granulated, and in hot weather the granulated stuff turns into a mess.
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Old 06-06-2010, 10:03 AM   #15
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Re: Ice & Watershield Step Flashing?


Speaking of Certainteed Winterguard versus the other brands I've never been impressed with any other brand. As a matter of fact some I've had to work with (home owners or builders bought) have been straight up garbage. The funny thing is the price at my yard for the Winterguard is cheaper than any other price out there for the other off brands.

See a lot of roofs being done without Certainteed shingles but with Winterguard.

Agree with Joe on the W&I requirements getting a little rediculous. Consider a house with a huge front overhang. This past Winter did a huge new roof for a builder and for the heck of it decided to ask the inspector how much W&I was needed on a front overhang detail. The overhang was at the front door were the roof was on a gable end and was about 7ft deep by 10ft wide. He said you have to go all the way back to the 2ft interior heated area, it was a 12/12!!! How much ice and snow is going to be sitting there? Not much! I would have done it this way anyways as the code is 2ft but it's still a huge overkill.

Have talked to inspectors in the past who said they would pass the W&I inspection with felt on at the unheated eave then ice and water at the heated area. This was in respect to houses with big front porches. Most inspectors want it from the bottom all the way up 2ft past the interior.
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Old 06-06-2010, 10:04 AM   #16
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Re: Ice & Watershield Step Flashing?


BTW,

Cerainteed makes three types of Winterguard, Sand, Granular, and HT (high temp for under metal)
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Old 06-07-2010, 10:16 AM   #17
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Re: Ice & Watershield Step Flashing?


Quote:
Originally Posted by dougger222 View Post
Speaking of Certainteed Winterguard versus the other brands I've never been impressed with any other brand. As a matter of fact some I've had to work with (home owners or builders bought) have been straight up garbage. The funny thing is the price at my yard for the Winterguard is cheaper than any other price out there for the other off brands.

See a lot of roofs being done without Certainteed shingles but with Winterguard.

Agree with Joe on the W&I requirements getting a little rediculous. Consider a house with a huge front overhang. This past Winter did a huge new roof for a builder and for the heck of it decided to ask the inspector how much W&I was needed on a front overhang detail. The overhang was at the front door were the roof was on a gable end and was about 7ft deep by 10ft wide. He said you have to go all the way back to the 2ft interior heated area, it was a 12/12!!! How much ice and snow is going to be sitting there? Not much! I would have done it this way anyways as the code is 2ft but it's still a huge overkill.

Have talked to inspectors in the past who said they would pass the W&I inspection with felt on at the unheated eave then ice and water at the heated area. This was in respect to houses with big front porches. Most inspectors want it from the bottom all the way up 2ft past the interior.
As far as my interpretation of the code, I understand the ice shield shoudl start at the gutter and extend past the warm wall 24". However yes, on unconditioned areas like porces or car ports that may possibly connect to a conditioned space on the same elevation, 15' of ice shield may be necessary to achieve code, but as we know, compltely un necessary. However you and I are at the mercy of the inespctor doing the inspection, and I have done it both ways where I start with felt on a car port, install a course or two of ice shield at the exteriior wall, then continue again with felt... Most times I just do as the code literally states so as to not have an argument later and at $75 a roll, it's worth just doing rather than arguing.
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Old 06-07-2010, 06:44 PM   #18
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Re: Ice & Watershield Step Flashing?


We follow Grumpy's routine to a tee when it comes to using ice guard!
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Old 06-14-2010, 04:59 PM   #19
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Re: Ice & Watershield Step Flashing?


Ice and water shield may be overkill, but if the turn the felts up 4" as recommended in ARMA, you have a cheap, but highly effective flashing under the step flashing.
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Old 06-16-2010, 08:53 PM   #20
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Re: Ice & Watershield Step Flashing?


I am using weather watch XT for the first time and let me tell you stay clear of this product. The backing is a white very thin plastic, which comes off great in the shade.
As soon as I got it on the roof, not super hot maybe 80-90. This backing came off in 4 inch strips.
Stick with paper backed in my opinion

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