How to Install Polystick MTS Plus Underlayment | Tile Roofing Guide

[@RoofRepairSpecialist]

Thanks for watching! Let me know in the comments if you prefer self-adhering or nail-down underlayment?

[@tiguilillo1975]

Hi, I have seen this MTS nailed on the top, is that ok?

[@carlosmendoza-er7ty]

its as long its for a water barrier purpose and away from itens and wall flashings .

[@Connieuser]

Great presentation 😇

[@RoofRepairSpecialist]

Thank you! 😃

[@KefirTView]

Can this Polystick underlayment be used for a composition asphalt 3-tab shingle installation and serve as the membrane between the OSB plywood and the asphalt shingle? Looking to use it for a patio cover (LA Area) with a shingled slightly sloped roof, instead of doing torch-down.

[@RoofRepairSpecialist]

It can. Depending on the slope, however it's not really needed. If the slope is 2/12-4/12 the code requires double layer of underlayment. above 4/12 1 layer of underlayment Anything under 2/12 your not allowed to install shingles. Now being that its a patio cover you can probably install shingles if its 1/12-2/12. However I wouldn't recommend it. If you go that route a self adhered underlayment would be a good idea. I would recommend a ice and water shields, its a similar membrane to this.

[@frankb9175]

How does that work on steep roofs ? Wondering because even with tiger paw sometimes its slippery when foggy mornings

[@RoofRepairSpecialist]

This stuff is pretty good on steep roofs. It has a rubbery surface on it. Any underlayment gets slippery with morning dew or frost, but this stuff is definitely one of our favorites when it comes to grip.

[@Lou-G]

If you install one layer of the MTS Plus, how many times can you go over it the future with the same kind of underlayment?

[@RoofRepairSpecialist]

Not sure if there is a specific rule or code on that. I wouldn't think there would be a problem to go 2-3 times.

[@Lou-G]

@@RoofRepairSpecialist Thanks

[@winterhawk1987]

how does this compare to installing torch down as underlayment for S or Mission tiles

[@RoofRepairSpecialist]

I think its a pretty comparable product for a fraction of the cost. If you install 2 layers of this product that would be a killer roof.