I bought a 1936 concrete home in Miami Florida in January in the dry season. The town has no storm drainage system( which I didn't know) and the property is in a flood zone. We are elevating the ground 18 inches with soil around the entire foundation, and grading a slow slope down away from the house. I want to waterproof the concrete foundation before we push the soil up against the house. What is the best material to use? I was told that an epoxy liquid would be good to coat on the foundation, but I have no idea if that's good. Thanks for any help you can provide. We don't have a basement, only a crawl space. SAMPLE - AFM SafeCoat, WaterShield Concrete & Masonry Sealers

Question

I bought a 1936 concrete home in Miami Florida in January in the dry season. The town has no storm drainage system( which I didn't know) and the property is in a flood zone. We are elevating the ground 18 inches with soil around the entire foundation, and grading a slow slope down away from the house. I want to waterproof the concrete foundation before we push the soil up against the house. What is the best material to use? I was told that an epoxy liquid would be good to coat on the foundation, but I have no idea if that's good. Thanks for any help you can provide. We don't have a basement, only a crawl space. SAMPLE - AFM SafeCoat, WaterShield Concrete & Masonry Sealers

Status: Open Aug 02, 2020 - 03:18 AM

1answer

Answer

Aug 02, 2020 - 04:17 AM

Watershield is a good waterproofing product for concrete, however, it may not hold up to 24/7 exposure to damp soil should that occur. Our best product for foundation walls is AFM Dynoseal. This is a non-toxic elastomeric waterproofing sealant that can live underground and will not deteriorate over time. It is black, and it needs to be covered as it has little UV protection. We use this below grade on foundation walls, fence posts, inside of raised garden beds and even underneath shower pans for extra protection. 1 gal covers about 100 SF in two coats.