Where the Most Expensive RV Water Damage Usually Begins

What 7 Years of Leak Investigations Revealed

Proven Through Field Investigation

Over the past seven years of full-time RV leak investigations, hundreds of RVs have been evaluated for water intrusion issues including:

• roof seam failures
• wall penetration leaks
• slide-out intrusion paths
• early laminated wall moisture migration

These real-world inspections revealed consistent patterns in how water enters RV structures — patterns that often remain hidden until significant damage appears.

The Structural Leak Assessment™ process was developed specifically to identify these hidden intrusion paths before structural damage spreads.

Why Water Movement Matters

Sometimes design layouts should be questioned.

Unlike residential construction, most RVs do not include roof overhangs or complete gutter systems.

Managing water movement is just as important as sealing seams, joints, trims, vents, windows, etc.

Repeated runoff exposure concentrates large volumes of water at critical joints & openings. Remember, RVs also shake, rattle and flex during travel. They experience temperature expansion and contraction. Seal joints are constantly under stress creating voids, breaks and adhesion failures.

Rainwater frequently flows directly across:

• Roof to wall transitions & vents
• Slide-out openings
• Corner trim joints
• Windows and other wall penetrations (holes cut in sidewalls for cargo storage, water inlets, venting, etc.)

What Happens When Moisture Reaches Laminated Wall Edges

Laminated RV sidewalls are constructed by bonding multiple layers together, typically including:

• fiberglass or gel-coat exterior panels
• structural substrates
• insulation layers
• internal framing

When water enters this assembly, the bonding layers begin separating.

This condition is known as sidewall delamination.

Because laminated walls are bonded structures, repairing delamination often requires partial or full wall reconstruction or replacement.

Many RV owners are surprised to learn that repairing sidewall delamination can quickly escalate to $25,000 or more once structural wall sections must be rebuilt or replaced.



Designed for RVs Already on the Road

Factory sealing and water runoff decisions occur during RV manufacturing.

We focus on better Structural protection designed for finished RVs already in service, where travel, weather exposure, and maintenance history affect water intrusion risk.

Our Structural Water Protection System improves how water is managed around critical seams and penetrations by improving seal redundancy, strengthening how seams resist water intrusion, and redirecting runoff away from vulnerable areas.

Our Structural Protection System

A framework designed to improve seal redundancy, runoff control, and protection at critical structural seams.

Tier 1

Structural Leak Assessment™

Non-invasive pressure testing and structural evaluation of both water systems.

This process identifies:

• Rough cut exposures

• Active intrusion paths
• Sealant fatigue zones
• Moisture migration patterns
• Potential failure points

You receive documented image findings before any corrective work is recommended.

Tier 2

Leak Correction & Water Management

Confirmed intrusion points are corrected using targeted sealing methods.

NEW!

Where appropriate, we also apply Seal Integrity and Runoff Control  designed to reduce runoff exposure at vulnerable areas.

These improvements may include:

• Flashing to redirect flow
• Modified trim geometry
• New rain gutter drainage

• New Multi-Seal™ integrity
 

Effective protection requires both seal integrity and runoff control, not sealant alone.

Tier 3

Delam Defense System™

NEW!

Designed specifically for laminated fiberglass and gel-coat RVs, this system focuses on protecting sidewall assemblies from moisture migration.

Delam Defense reinforces high-risk wall penetrations and trim joints to reduce long-term delamination risk.

Best suited for laminated RVs typically 1–15 years old, because delamination directly affects trade-in and resale value, preventing moisture intrusion is often far less expensive than repairing structural damage later.

Who This Is Best For?

Owners who prefer professional evaluation before investing in resealing or other work.

Typically best for:

• Laminated fiberglass travel trailers (Exterior Delamination Risk)

• Aluminum sided travel trailers (Compromised "S" joint seepage Risk)
• Units 1–15 years old

 • Owners who want multiple layers of protection, not the sole dependence on sealant alone.
• Owners planning resale
• Owners preparing or returning from major trips
• Owners who prefer documented professional work

Structural Leak Assessment™ is the process used to evaluate both structural water systems and identify potential intrusion paths.

The goal is not simply to reseal visible joints, but to understand how water may be interacting with the RV structure.

This process uses non-invasive testing methods including:

• pressure leak testing
• bubble testing
• targeted seal inspection
• other non-destructive testing methods

These methods help identify leak paths from the inside out starting with the primary hidden seal, not just exterior visible caulking.