Can I install one of the TexRite crack isolation membranes outside on my patio before installing 18×18 slate?
Yes. TexRite HydroRite or UniFlex can be used on exterior applications in addition to the NAC Products membranes. Caution: Exterior patios typically do not have a moisture barrier underneath therefore make sure there is functional drainage of the surrounding soil to reduce the possibility of hydrostatic pressure causing a membrane bonding failure.