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Metal Roof Underlayment- Synthetic Felt paper vs. High temp Ice and water shield

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In this video we look at Metal Roof Underlayment like high temp ice and water and synthetic felt. Underlayment matters especially on metal roofing jobs Watch this video to see why we install high temperature ice and water shield on the entire structure on our metal roofing projects.
Learn more at www.Exteriorproinc.com
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Опубликовано:

29 июн 2020

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Комментарии : 39

@jeremylakenes6859 2 года назад

Do you have to worry about the sheathing breathing? Like getting mold under the sheathing?

@tillmansr2002 3 года назад

Great video, at 2:40 is nailing the underlayment that is self -adhered. What is the reason for that process? Is it to hold the sticky product in place until the back is peeled off? DIYer with a low-slope (2.5/12) metal roof in FL

@Josh-ww5kz 3 года назад

It's basically just to hold it there. Sometimes it's not hot enough for it to fully adhere to the roof decking right away, if it's a bit cooler then you should put fasteners just to hold it there while it heats up and starts to stick.

@billspeight8936 4 месяца назад

Can you use peal and stick if you're using architectural shingles above the ice shield as in metal roofs.

@corey7348 Год назад

Ice and water barrier was made for the begining edge of the roof where ice dams can form then continue with a good synthetic or felt from that point.. never meant to be used entire roof restricts air movement across decking

@VeganSurf 4 месяца назад

I think this is more relevant for asphalt shingles - the shape of metal roof creates an air gap between the metal and the deck underneath it so there is a natural air/ventilation cavity under the metal anyways.

@brendan9698 Месяц назад

Yes, but if you cover the roof in Ice and water barrier, you can do a shitty job on the roof and it still won't leak..

@blanco1231000 Год назад

I just had a flat tile roof installed. They used synthetic felt first and waited for inspection. Strong storm came and we had some leaks through that. Them they installed ice and water shield on top of the synthetic felt before they installed the tiles. Is that ok?

@kkp4297 6 месяцев назад

do a double layer 50% overlap synthetic felt, and you don't have to worry about water getting under. you get problems only when contractors cut corners and don't overlap much of the underlayment.

@buscojosenjuarezdenuevoleo9669 Год назад

Can the high temp. Be able to lay over shingle ?

@joeshulman2501 3 года назад

Another great video what is acceptable with roof line deflection on a metal roof?

@davidchung5369 2 года назад

Great video! In the future if the peel-and-stick underlayment needs to be removed for whatever reason, how feasible is that process? Will there be any damage to the plywood on the roof in the removal process? Thx.

@jdubsvr6 2 года назад

It would be easier to replace your rood sheathing than remove the peel and stick underlayment. Typically you would re-apply over the existing underlayment rather than remove the old material.

@corey7348 Год назад

If you get grace tri flex xt you will never have nothing to worry about had roof open for 5 months heavy rains etc roof remained dry till I got all the metal to close it

@kyledean6659 3 года назад

Great video Aaron but don't you lose 90% of your energy star rating by not using 1x4 battened to hold metal off of the deck?

@johnbarth684 6 месяцев назад

Any experience with insulated roofing panels? Would you use firing or put it on the deck?

@johnbarth684 6 месяцев назад

Furing

@drchamp1902 3 года назад

In Florida, would you recommend using wood purlins under the metal to get more air flow on an unvented attic? Also, would you recommend using a radiant barrier foil on top of the peel and stick before the metal goes on

@JamesR23 3 года назад

@alan Lu put in some ridge vents. Unvented attic is a problem and will only grow to be a bigger and bigger problem.

@drchamp1902 3 года назад

@@JamesR23 any specifics on the problems or just a blanket statement. Everyone I know who has done an unvented attic in Florida seems happy with the level of insulation they get.

@mr.g937 Год назад

Both of those are good things to do but you will be paying a good couple hundred per square to get that done. It's above and beyond what is necessary.

@drchamp1902 Год назад

@@JamesR23 you are incorrect. My unvented attic is doing just fine, lower utilities, no moisture. The only complaint is the foam smell, at least a little

@tadeusztoporkiewicz6869 2 года назад

standing seam metal roof won't let any water get through even if ice builds on unless it is not installed correctly.... so I don't see any reason for any protection of the deck.... only moisture that might build up there but if attic is ventilated correctly with continuous ridge vent there should be no problem

@donkreher6078 2 года назад

What about condensation and frost? The moisturize will get trapped under the metal and above the ice and water?

@triumfdula8830 2 года назад

Will this ice and water shield underlayment be reliable and waterproof under decorative metal sheets that allow the water to go under ?

@brendan9698 Месяц назад

NO. The nails will rust and then you get leaks. I had Ice and water dam leak at the nails after 12 years, this was the thick rubberized membrane.

@zelphmyster 4 года назад

Great video! Is it ok to add a synthetic on top of I & W in order to add an additional layer of protection for the elements as I'm doing my entire roof on my own (and will take several weeks)? I also am concerned about the mineral non-slip surface on the I & W that could rub directly on the underside of the metal.

@ExteriorProInc 4 года назад

most of the high temp ice and water will last 90 days to 6 months out in the elements so you may not need the felt. We've had new construction projects go 3 plus months out with not problem through winter while the rest of the building was being built.

@kentnauman9863 2 года назад

I put both on under my decra shake xd roof, its not about money its about putting on a bullet proof system. I couldn’t be happier after 5 years. Under that i redecked with 7/8 top quality plywood,all screwed down

@JamesR23 3 года назад

You need ice and water shield for metal roof or it will weep

@bygoran 4 года назад

this roofers r on next level as far safety OSHA will love this video

@ExteriorProInc 4 года назад

Thank you

@bygoran 4 года назад

@@ExteriorProInc you should be ashamed off that workers just look how is the safety harness utilized what a joke

@tadeusztoporkiewicz6869 2 года назад

@@bygoran I'd like to see your approach.... to safety harness on video...

@gemrough 3 года назад

Is it just or did they not put that ice/water underlayment down and not peel the back off???

@Josh-ww5kz 3 года назад

They peeled it off, you can tell by the amount of wrinkles in the underlayment. Sometimes I would leave the backing on small sections when doing a roof and peel it off as I get to doing that section, some ice and water underlayment get super sticky when it's hot and walked on