All the block are laid, the drainage is installed, and the back fill is in progress. After an exhausting couple of days of digging out clay the long, snake lie pipes are resting in a gravel bed. We had to slope the drains at an 1/8":12" (about 1% slope). This proved to be a fun challenge for the trenching. We had to dig far enough down at the front of the house in order to get the top of the drain far enough down to be effective against a rising water table. If the water table get to high and freezes it can actually uplift the foundation. Those drains are a very important part of this house. Chris led a team that applied the glue, water protection, and protection board to the house and retaining wall. The retaining wall needs the water protection mostly to reduce efflorescents on the interior of the wall.
Friday, October 22, 2010
Finished with one on to the other...
All the block are laid, the drainage is installed, and the back fill is in progress. After an exhausting couple of days of digging out clay the long, snake lie pipes are resting in a gravel bed. We had to slope the drains at an 1/8":12" (about 1% slope). This proved to be a fun challenge for the trenching. We had to dig far enough down at the front of the house in order to get the top of the drain far enough down to be effective against a rising water table. If the water table get to high and freezes it can actually uplift the foundation. Those drains are a very important part of this house. Chris led a team that applied the glue, water protection, and protection board to the house and retaining wall. The retaining wall needs the water protection mostly to reduce efflorescents on the interior of the wall.
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