Can I install pavers over an existing concrete walkway or patio?
While this is not the preferred method, your installation can be laid over top of existing concrete walkways, providing there is not substantial heaving in the existing area. Several other issues need to be addressed. First, the grade will need to be raised by about 3″ (the thickness of the bricks plus bedding sand or bonding agent). This is particularly critical if any doorways are involved. Second, remember that if the existing concrete slab should raise or drop with freeze/thaw conditions, the bricks will do the same.
– While this is not the preferred method, your installation can be laid over top of existing concrete walkways, providing there is not substantial heaving in the existing area. Several other issues need to be addressed. First, the grade will need to be raised by about 3″ (the thickness of the bricks plus bedding sand or bonding agent). This is particularly critical if any doorways are involved. Second, remember that if the existing concrete slab should raise or drop with freeze/thaw conditions, the bricks will do the same.
