Landscape Brick Wall Ideas
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- The combination of used brick and weeping mortar joints used in this older home was extended to this retaining wall that brings the front entry patio up to grade with the front door. This irregular technique is a remnant of Arts and Crafts brickwood where the irregular setting of bricks and the extruded mortar was a desirable feature. The all also features plastered panels, here painted white to provide relief from too much red brick which has lost its stylish appeal in some regions.
- This older used brick retaining wall rises a few courses above the patio level behind. This design flaw is demonstrated here by the need to drain the patio properly in order to prevent water buildup behind the wall. These spaces may have been chiseled out to provide drainage after the error proved problematic, or they may have been a poorly thought out part of the original design. The result is that water coming through the wall drain has seriously discolored the face of the wall. Moisture may also be gradually accumulating behind the wall to increase hydrostatic pressure there. In all cases with all materials, the primary issue facing retaining walls is water and drainage control.
Brick Cavity Retaining Wall
This design is composed of two standard brick walls just inches apart that share the same foundation. The space between has steel and concrete for strength.
Block Core Brick Retaining Wall
Brick retaining walls today can be divided into two groups that yield nearly identical looking walls. The difference is in the materials and method of construction. To the homeowner, this difference can have a big impact on the bottom line.
A retaining wall made entirely out of brick is known as a "cavity wall". This design is composed of two standard brick walls just inches apart that share the same foundation. Between them is a gap for steel that runs up from the foundation to the top of the wall. When the space is filled with grout or concrete, it becomes a solid structure. These brick walls have little structural integrity until fully finished. This means brick is required from base to top on both sides of the retaining wall to enclose the cavity, which increases the cost of materials and labor.
Block Core Wall
This method is far more common today since the invention of the concrete masonry unit (CMU). The wall is constructed out of CMU block which holds the steel within its cells filled with concrete. Then brick is laid on the outside of the structural block core like a veneer. Because brick is laid only on the exposed parts of the wall, less brick is required than a cavity wall to reduce overall cost.
The low cost and versatility of CMU walls makes beautiful brick retaining walls affordable to lower budget projects. They are strong, easy to waterproof and may not need highly skilled masons. The strength of this wall is also appealing to landscape architects concerned with the long term effects of moisture.