Basement WaterProofing

What is Drain Tile?

Drain tile is a pressure relief system designed to manage water at the foundation level and prevent basement flooding. It’s not exactly rocket science, but it is a labor-intensive process that requires skill and precision to do right. Here’s how it works:

1. Trenching – A channel is cut along the perimeter of the basement floor, exposing the foundation’s footing. After that, a trench is dug approximately 10 inches out from, and down to the bottom of the footer.
   
   
2. Drain Tile Installation – A perforated drain pipe, wrapped in filter fabric, is placed at the bottom of the trench. By digging the trench down to the base of the footer, we ensure the pipe collects water at its point of entry, creating a new low point and the path of least resistance. This prevents hydrostatic pressure from building up and forcing water into unwanted areas of your basement.
   
   
3. River Rock Backfill – Clean stone is placed around the drain pipe to filter water naturally, preventing fines like silt and sand from entering the system. This protects the pipe from clogging and keeps debris from reaching the sump pump, helping to extend its lifespan and maintain optimal performance.
   
   
4. Pressure Relief Weep Holes – Small holes are drilled at the base of block wall foundations to release trapped water and prevent pressure buildup. This allows water to drain directly into the drain tile system, protecting the foundation from cracks, bowing, or structural damage while keeping the basement dry.
   
   
5. Drainage Board Installation – To ensure water from the pressure relief weep holes reaches the drain pipe efficiently, we install a drainage board along the base of the wall. This channels water directly into the system, preventing moisture from lingering behind the wall. As an added option, the drainage board can be installed all the way to grade, covering all underground portions of the foundation. This is especially beneficial for basement remodels, providing an extra layer of protection to keep your investment dry and secure for the long run.
   
   
6. Concrete Restoration – Once installed, the trench is backfilled and covered with fresh concrete, leaving only a discreet, functional system beneath your floor.
   
   

Why It’s Needed

Without proper drainage, hydrostatic pressure builds up around your foundation, forcing water through cracks, the cove joint (where the wall meets the floor), or even through the concrete itself. Drain tile relieves this pressure, giving water a controlled path to exit before it reaches your living space.

Drain Tile Myths vs. Reality

•  “I already have a sump pump, so I don’t need drain tile.”
   A sump pump alone won’t fix water intrusion—it needs a collection system like drain tile to be effective.
•  “It’s just a temporary fix.”
  Unlike exterior waterproofing, which can fail over time, interior drain tile is a long-term solution that manages water at the source.
• “Drain tile will clog”
  A well-installed system won’t clog because it’s surrounded by clean river rock, which acts as a natural filter. Problems only arise if cheaper methods (like laying pipe directly in dirt) are used.
  
  

Bottom Line

Drain tile isn’t glamorous, but it’s the best defense against basement water problems. If you’re seeing moisture, seepage, or pooling water in your basement, installing a drain tile system can permanently solve the issue and protect your foundation for the long run.