Applied Rubberized Membrane
Applied Rubberized Waterproof Membrane | Exterior Foundation Protection
When water is penetrating your foundation walls, one of the most effective long-term defenses is an applied rubberized waterproof membrane, a thick, flexible, seamless coating applied directly to the exterior face of the foundation wall. This creates a continuous waterproof barrier that resists hydrostatic pressure, bridges hairline cracks, and prevents water from ever penetrating the wall structure. Keystone Foundation Repair applies rubberized membrane coatings as a core component of exterior waterproofing systems across our service area.
What Is a Rubberized Waterproof Membrane and How Is It Applied?
A rubberized waterproof membrane is a liquid-applied elastomeric coating, typically made from a modified bitumen, polyurethane, or rubberized asphalt compound, applied to the exterior surface of a foundation wall after excavation. The material is brushed, rolled, or spray-applied in one or more thick coats, bonding directly to the concrete or block surface. As it cures, it forms a seamless, flexible, waterproof skin over the entire treated wall surface.
Unlike rigid coatings that can crack as the structure moves and settles, rubberized membranes remain flexible after curing, allowing them to accommodate minor movement, thermal expansion, and hairline cracking without losing their waterproof integrity. This flexibility makes them particularly valuable for older foundations where minor ongoing settlement and freeze-thaw cycles are common.
Call To DiscussRubberized Membrane as Part of a Complete Exterior Waterproofing System
A rubberized membrane is most effective when installed as part of a complete exterior waterproofing system that also includes:
- Proper surface preparation and crack repair before application
- A drainage board or dimple mat installed over the membrane to direct water downward
- A perforated footing drain at the base of the wall to collect and discharge water
- Proper backfill and grading to direct surface water away from the foundation
Keystone Foundation Repair designs each exterior waterproofing system around the specific conditions of your property, soil type, water table, extent of existing damage, and budget. We use quality-grade materials and proven installation methods to ensure your membrane performs for decades, not just seasons.
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Ready to Waterproof Your Foundation from the Outside?
An applied rubberized membrane is one of the most thorough and durable waterproofing solutions available. Contact Keystone Foundation Repair for a free exterior waterproofing consultation.