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

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.

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[tillmansr]

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

[jeremylakenes]

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

[shawngadwa]

You dont need purlins under the metal roof?

[billspeight]

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

[buscojosenjuarezdenuevoleo]

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

[blanco]

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?

[joeshulman]

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

[triumfdula]

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

[davidchung]

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.

[drchamp]

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

[johnbarth]

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

[daledautenhahn]

Can I buy materials from you & install myself?

[zelphmyster]

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.

[kyledean]

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?

[corey]

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

[corey]

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

[kkp]

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.

[tadeusztoporkiewicz]

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

[gemrough]

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

[JamesR]

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