![]() However, the blocks will never rot or deteriorate.īlocks never rot or deteriorate Concrete Masonry Unit (CMU) Retaining WallsĬMU walls are a completely other story when it comes to the installation process. But also to protect the wood itself from rot against dirt contact.Ĭost wise, there is not a huge difference between the pressure treated wood walls and the split faced block walls. Not only to protect the wall from excess weight and to allow for drainage from heavy rains. However it is important to note that wood retaining walls also require a minimum of 12” of crushed rock backfill. ![]() Wood retaining walls are another cost effective option. Therefore, each layer, or course, of the wall itself is set back about a 1/4” to allow for the lip to hold the block in place atop the lower course. The split faced blocks work with a lip system. The split face blocks are light weight, relatively easy to install and cost effective when compared to a CMU retaining wall or a natural stone retaining wall. Split Face Walls are a popular product for non engineered walls. ![]() This allows the soil to expand and contract with the seasons without causing excess pressure and weight on the wall itself, from heavy rains, which can lead to wall failure. The above are a few ways that Rogers Landscape goes above and beyond when installing your retaining walls.Ī minimum of 12” of crushed rock along with drainage pipe should be installed behind every retaining wall. Will any weed fabric be install around the rock to prevent is from filling with dirt over time. How much crushed rock is used as backfill behind the wall? Is drainage going to be installed behind your wall? Retaining walls are required to be dependable so make sure that the company installing them is dependable too. Retaining Wall Installation Process Retaining Walls
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