Be careful about only applying the membrane where you want it. The membrane’s unpeeled surface is extremely sticky; if it accidentally sticks somewhere it shouldn’t, you’re going to have a hell of a time trying to get it off. If you’re working inside, you shouldn’t need to set down a water vapor barrier, unless you’re adding stone veneer to a wood surface, like plywood.
Directions for mixing mortar will vary. Follow manufacturer’s directions, but most of all, be consistent with whatever recipe you choose. If you decide to use 2:1 sand to cement, stick with 2:1 each time you use mortar elsewhere.
If it’s helpful, do the dry run on the ground instead of trying to hold the stones up against the wall. The basic arrangement of the stones should transfer.
Keep the joints consistent to achieve the most appealing result. You probably want your joints to be between 1 and 3 inches (2. 5 and 7. 5 cm) long.
Use a paint brush to clean up the mortared joints before the mortar sets completely. [7] X Research source Do this especially if working inside, as inside stone wants a more polished look.
