Trusted roof waterproofing in Grafton, WI. Our certified crews deliver precision workmanship and guaranteed results.
Ponding water destroys conventional roof waterproofing because standing water attacks seams and coating adhesion. Our SPF-based waterproofing systems in Grafton are engineered to handle indefinite ponding — the silicone topcoat does not re-emulsify, soften, or deteriorate in standing water.
When Grafton, WI property owners need roof waterproofing, they turn to Lapolla Industries for the same reason thousands of customers nationwide do: we solve the root problem, not just the symptom. Our diagnostic approach uses infrared scanning, moisture mapping, and visual inspection to ensure the solution we recommend is the one your building actually needs.
With over two decades of spray foam experience, our Grafton crews have seen every roof waterproofing scenario Wisconsin weather can create. We use that experience to select the right foam type, coating system, and application method for your specific property — delivering roof waterproofing results that hold up to Grafton conditions year after year.
From inspection to completion, here is how we deliver professional roof waterproofing results.
Before any work begins, our certified inspectors evaluate your property and provide a comprehensive assessment including current condition, repair needs, and recommended SPF solutions. You get a written estimate with no hidden fees.
Proper surface preparation is critical for spray foam adhesion and long-term performance. Our crews clean, dry, and prime all surfaces, remove debris and loose material, and ensure the substrate meets manufacturer specifications before any foam is applied.
Using precision spray equipment, our crews apply the foam in controlled passes to achieve the specified thickness and density. The closed-cell foam expands 30 to 40 times its liquid volume, conforming to every detail of the surface and creating a seamless monolithic barrier.
We finish every project with the appropriate protective coating, thorough cleanup, and a detailed walkthrough. You receive project documentation including photos, material specifications, warranty registration, and maintenance recommendations.
Expert answers to frequently asked roof waterproofing questions.
Costs for roof waterproofing in Grafton vary based on project size, existing conditions, and material requirements. We provide free on-site estimates with detailed written proposals. Contact us at {phone} for a no-obligation quote.
Absolutely. Once cured, spray polyurethane foam is inert and non-toxic. Our Grafton crews follow all OSHA safety protocols during application, including full PPE and ventilation procedures. The foam cures within minutes and is safe immediately after.
Yes. Every roof waterproofing project in Grafton is backed by manufacturer material warranties plus our own workmanship guarantee. We handle all warranty registration and remain available for warranty service throughout the life of your system.
Yes. Every roof waterproofing project in Grafton starts with a free, no-obligation inspection and detailed written estimate. Call {phone} to schedule yours. There is never a charge for the initial assessment.
Real feedback from property owners who trusted Lapolla Industries with their spray foam projects.
"Called about a ceiling stain that kept growing. They got on the roof, found the leak source at a HVAC curb penetration, and had it sealed within hours. Professional, fast, and the price was exactly what they quoted."
"We needed our concrete roof deck waterproofed before installing new equipment on it. The crew applied a monolithic membrane that handles foot traffic and ponding water. Two years in and zero issues. Money well spent."
"We had a persistent leak that three different contractors could not find. Their team used moisture scanning equipment and pinpointed it to a failed pipe boot in minutes. Fixed it the same day. Incredible diagnostic work."