Crawl Space Repair Photo Album: Crawl Space Encapsulation in Franklin, TN

Jim in Franklin, TN, contacted Frontier after noticing water intrusion issues in his crawl space. During the inspection, the design specialist found elevated humidity levels and mold growth on the floorboards caused by excess moisture in the space. To address the mold, the Frontier team soda blasted the affected areas to remove the growth from the wood surfaces. To help manage water intrusion moving forward, the team installed a drainage system that directs water to a sump pump, which discharges through an IceGuard fitting and LawnScape Outlet. The space was also protected with drainage matting and CleanSpace liner to help direct water toward the system and create a cleaner, more moisture-controlled environment. To further reduce humidity and help prevent future mold growth, a SaniDry Sedona dehumidifier was installed.

Relative Humidity

Relative humidity was over 66%, over the recommended limit of 60% that cultivates mold and encourages pests.

Mold Growth

High humidity in the crawl space facilitated mold growth on floor boards and floor joists.

Ineffective Insulation

Traditional crawl space insulation can absorb moisture from the air, holding dampness against the floor system and creating conditions that allow mold growth to spread. As the insulation becomes saturated, it can also grow heavy and begin falling from between the floor joists.

Soda Blasting

The team used soda blasting to remove mold from floor joists and floor boards. Soda blasting removes mold at the root and prevents regrowth.

Drainage System and SilverGlo Panels

A drainage system was installed to capture water entering the space and direct it toward the sump pump system. The existing insulation was replaced with SilverGlo insulation panels, which do not absorb moisture like traditional insulation and help improve energy efficiency in the crawl space.

Drainage Matting

Drainage matting is installed underneath CleanSpace liner to allow water to move towards the drainage system.

TripleSafe Sump Pump

The drainage system empties into the sump pump, which pumps the water out of the home. The battery backup ensures the pump continues to run during a power outage.

SaniDry Sedona Dehumidifier

The SaniDry Sedona dehumidifier was installed to control humidity long-term and keep RH under 60%.

Discharge Line

The water exits the house through an IceGuard, which ensures the pump continues to work if there is a blockage. The line ends with a LawnScape outlet, which is placed downhill from the home.