Project Location: Brooklyn, NY
Client: Residential Property Owner
Service Provider: Zavza Seal LLC
Scope of Work: Targeted Wall Waterproofing Beneath Exterior Doors
Project Background
Zavza Seal LLC was called to a residential property in Brooklyn, NY to resolve persistent moisture intrusion beneath two exterior doors. The affected areas showed signs of water damage due to a failing and deteriorated black tar coating previously applied for waterproofing purposes. The client’s main concern was to protect the underlying wall surfaces from future water ingress and preserve structural integrity.
Subject Area
- Location: Two separate wall sections directly beneath the exterior doors
- Condition: Presence of damaged black tar, ineffective waterproofing, and moisture risk
Challenges
- Difficult removal of aged tar material
- Need for long-lasting, seamless waterproofing membrane
- Ensuring strong adhesion on previously treated substrates
Zavza Seal’s Solution
To provide a durable and reliable waterproofing solution, our team implemented a high-performance Sikalastic system, known for its effectiveness on vertical and horizontal surfaces in challenging environments.
Step 1: Removal of Damaged Waterproofing
- Our crew removed and disposed of the failing black tar coating from the two wall sections.
- Due to the stubborn nature of the remaining residue, we utilized Xylene solvent wipes to clean and break down any leftover tar.
- After solvent cleaning, the substrate was thoroughly dried to ensure optimal surface preparation.
Step 2: Primer Application
- We applied Sikalastic® EP Primer/Sealer, a two-component epoxy primer designed to penetrate and seal the substrate.
- The primer was allowed to fully cure until tack-free, forming a strong base for membrane adhesion.
Step 3: Membrane Installation
- Once the primer was set, our technicians installed Sikalastic® 726 Balcony One Shot, a high-performance polyurethane waterproofing membrane.
- The membrane was applied to cover the entire surface area below both doors, creating a seamless, flexible, and UV-resistant barrier against water.
Results
✅ Complete removal of ineffective waterproofing
✅ Seamless membrane application for long-term durability
✅ Prevented water infiltration at key structural entry points
✅ Enhanced protection with Sikalastic-certified system
✅ Minimal disruption to property and immediate improvement in waterproofing performance
Why Choose Zavza Seal for Door Waterproofing in Brooklyn, NY?
At Zavza Seal LLC, we specialize in customized waterproofing solutions using the industry’s most reliable products. From door and wall waterproofing to foundation and basement protection, our team ensures every detail is executed with precision. For this Brooklyn project, we combined expert surface prep, certified primer systems, and Sikalastic’s cutting-edge membrane for lasting results.
💧 Need Door or Wall Waterproofing in Brooklyn, NY?
Get in touch with Zavza Seal LLC today for a free consultation and protect your home the smart way.