Drilling into the seat wall is no problem. However, we recommend that you do not use over a #8 size concrete screw.
If your concrete is in excellent condition (no cracking or deterioration), then yes, you can install pavers over concrete. The existing concrete pad must slope away from any structures to ensure drainage (min 1” of fall for 8′ of run). Also, you must create a drainage layer below the pavers (1″ of bedding sand).
The base material we recommend is locally-approved, road base gravel (6-12” thick for a patio and/or walkway, 10-14″ thick for a driveway). On top of this compacted gravel, a 1″ bedding course of coarse sand is placed prior to laying the pavers.
No. Damage caused by freezing is virtually non-existent. Joints between concrete units (pavers, slabs, walls) allow them to move without breaking or cracking. The quality of the concrete used also allows each unit to withstand freezing.
No. Whether the ground is wet or dry, the texture provides excellent traction for pedestrians and motor vehicles alike.
Efflorescence is a deposit of white crystals that can sometimes appear on the surface of the concrete. It does not, in any way, compromise the functionality of the product. With rain, and time, efflorescence will disappear.
Most pavers and slabs are designed to resist deterioration. Sealants will provide additional protection against stains and make maintenance easier. While simultaneously enhancing the colour of the stone, the decision to use a sealant is, above all, a matter of taste.
Yes. However, it would be wise for you to set aside a few extra pavers as replacements when doing the original installation. To replace a paver, remove the sand joint around the paver. Next, use two screwdrivers to remove the paver, and replace it with the new paver. Fill the joint with sand and compact the entire area using a rubber mallet.