Exterior basement waterproofing- Interior vs Exterior Waterproofing External basement waterproofing involves building defenses to prevent seepage or leakage of water into the basement from the exterior of the house. Techniques employed include external waterproofing membrane, window wells, external drainage system, recreating the slope gradient of the grade and crack repairs among ot... https://canadawaterproofers.com/waterproofers-blog/exterior-waterproofing-vs-interior-waterproofing/