What is a foundation drain board?

Footing and Drainage Boards The key to ensuring a good, waterproof basement depends as much on the drainage system as the waterproofing membrane itself. Drainage boards relieve hydrostatic pressure by directing water to the base of the structure. Footing drains remove that water away from the building.

How does drain board work?

Drainage boards have a fabric on the dimple side which drains the water from the soil. By draining away the water, the hydrostatic loads on the membrane and foundation are lessened considerably.

What is drain board for waterproofing?

Drainboard serves as a protection board layer for an installed waterproofing membrane and liquids during backfill. Use with Totalflow™ Outlet Channel and accessory outlets for a high-capacity collector and outlet drainage system. Use with perforated pipe outlet drainage system.

Where does a foundation drain go?

The foundation drain tile drains to a sump pump, which pushes the water out and away from the foundation.

What can I use for a foundation drain?

Geotextile cloth/cover: Geotextiles are permeable mesh fabrics which, when used in the soil as part of a foundation drainage system, have the ability to separate, filter, reinforce, protect, or drain. They help to filter soil and prevent the perforated pipe from clogging with dirt over time.

Do foundation drains need to be sloped?

ABOUT FOUNDATION DRAINAGE The solid pipe should be sloped at a minimum pitch of 1/4 inch per foot, although a steeper slope is better. If there is more than 200 linear feet of foundation, add a second outlet or increase the size of the outlet pipe from 4 inches to 6 inches.

What is the purpose of dimple board?

An Effective Method of Controlling Water The DRY-UP™ Dimple Board is a very tough and long lasting plastic membrane that prevents moisture from passing through. It is also “dimpled” to allow a wall to breathe, allowing moisture to condensate outward so it falls by gravity to a drainage system.

How do you attach dimple boards to concrete?

  1. Step 1: Clean the footing and snap a chalk line at the finished grade.
  2. Step 2: Unroll the DMX AG™ (dimples against the wall), with the top.
  3. Step 3: Install Concrete Nails and Approved Washers or Quik Plugs.
  4. Step 4: Handle corners and overlaps. (
  5. Step 5: Handle windows and service entrances. (

How deep is a foundation drain?

This trench must be at least two feet wide and six feet deep. For a slab-on-grade home, the trench can be as shallow as two feet.

How should a foundation drain be installed?

Most detail drawings show that a footing drain should be located next to the footing.

  • On its face,the location of a foundation perimeter drain seems like the simplest of details.
  • At least that’s what many construction drawings show.

    • What is a foundation drainage board?

    Black Goo Doesn’t Cut It. In the old days,the go-to foundation waterproofing was an asphalt-based,black,nasty goo.

  • First Line of Defense. In the order of building,the first component in the system is a true waterproofing material applied to the surface of the foundation walls.
  • Drain Down.
  • Drain Out.

    • How does a foundation drain work?

    Dig a trench around the perimeter of the foundation. The trench will need to be dug down to the footers of the foundation and be about 4′ wide.

  • Lay the filter fabric. Along the bottom of the trench,you will unroll the filter fabric,lapping the filter fabric up the sidewalls of the foundation.
  • Layer crushed stone and pipe.
  • Cover with gravel.

    • What is foundation drainage system?

    Sump Pumps. It is ILLEGAL to Drain Your Sump Pump Into the Floor Drain or Wash Tub in Your Basement!

  • Sump Pump Installation. Here’s an overview of how a sump pump is installed in your basement.
  • Palmer Valves.
  • Common Sump Pump Problems.

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