slownsteady
Well-Known Member
I'm putting two steps in front of my house. The risers are concrete blocks and the treads are limestone. The steps are wide, so they require more than one tread each.
Whenever I see seams in limestone treads they have a small gap between them filled with either caulk or mortar. Is this necessary? I would rather have no gaps, but I'm concerned that it's not wise. Are they subject to cracking through expansion or freezing?
Whenever I see seams in limestone treads they have a small gap between them filled with either caulk or mortar. Is this necessary? I would rather have no gaps, but I'm concerned that it's not wise. Are they subject to cracking through expansion or freezing?