Q: What’s the best method to waterproof a basement?
A: Waterproofing your basement is critical to protect your home from water intrusion, especially in regions like California with specific waterproofing requirements outlined in the building codes. The ideal approach combines both exterior and interior waterproofing methods.
On the exterior, consider installing a French drain or footing drain system around the perimeter of your basement. These systems, combined with a waterproofing membrane like Grace Bituthene, create a barrier that prevents water from entering your basement through the foundation walls. Proper grading of the soil away from the foundation is also important to divert surface water.
For interior waterproofing, install a sump pump system, such as the Zoeller M98, to manage groundwater. This system collects and pumps out excess water that may accumulate in your basement. Additionally, use a high-quality water-resistant coating like Drylok to seal your basement walls. Properly sealing joints and cracks is crucial.
By combining these exterior and interior waterproofing techniques, you’ll ensure a dry and moisture-free basement, complying with California building codes and safeguarding your home from water-related issues.