If it were to get cold enough that water trapped behind the retaining wall will freeze and expand pushing the wall outward.
Best rock for drainage behind retaining wall.
However retaining walls are built with a certain capacity in mind.
After a few seasons the wall s integrity will be compromised.
Typical rock retaining walls also known as dry stack retaining walls are constructed without mortar or reinforcing steel.
Retaining walls are a seemingly simple enhancement to any landscaping project.
The retaining factor is.
Install it in a u shape way behind the wall.
The biggest concern that you need to think about is cold weather.
The design of a properly built retaining wall resists the force of the soil behind it and prevents caving buckling or leaning.
How to fill behind a rock retaining wall.
Fabric keeps soil from leeching out of walls.
Cut holes into the wall to let water out.
These are called weeping.
When drainage goes unaddressed hydrostatic pressure will build up behind the wall and cause damage such as bulging or cracking.
Proper drainage behind the wall will intercept this problem before it can occur.
When you re doing a diy landscape project it s important to choose the right type of gravel.
Use drainage tubing behind the wall.
Every landscape project is different and may require different quantities and sizes of drainage material.
Gravel is necessary for many landscape projects and not just beautiful rock gardens.
Drainage gravel is essentially used in any location where you need water to run freely and with minimal resistance.
With proper retaining wall drainage and construction it can bring a lot of character and function to your landscaping.
Use fabric behind the wall.
Proper drainage for a rock retaining wall.
Why proper drainage is important for retaining wall performance.
Fabric keeps rock and soil separate.
However nearly 80 of all residential retaining walls fail at one point or another because of poor drainage.
A retaining wall is built to hold back a certain amount of soil.
The most common usage is behind retaining walls or sub surface drainage trenches running underneath lawns and gardens.
After going to all the trouble of building a retaining wall the last thing you need is for it to collapse because of mud and water damage at its base.
Retaining walls and other features that require drainage make great use of large gravel to allow water to drain away faster than soil would.
There are a number of ways to ensure proper drainage of water from behind a retaining wall.