Walk into any RV service bay during the height of the winter or summer months and you’ll hear a familar complaint:
For many RV manufacturers and MRO shops, these issues are often dismissed or treated as unavoidable. But in reality, the root cause is something far more fixable:
Uncontrolled air leakage.
This article is intended for shops that want to turn this challenge into a profitable service opportunity.
Building science consistently shows that air movement is a dominant factor in comfort and energy loss. Research shows that 25-40% of heating and cooling energy can be lost due to air leakage in typical structures. “Air leakage” (as defined by the U.S. Department of Energy), occurs when outside air enters and conditioned air escapes through gaps and openings.
Air leakage has been shown to account for up to one-third, or even more, of total energy loss.
While most building envelope research pertains to residential structures, the physics applies to RVs and is arguable even more impactful.
Consider that RVs experience:
Each of these create ideal conditions for uncontrolled air pathways.
Air leakage (also called infiltration) occurs when pressure differences (caused by wind, temperature, or mechanical systems) push air through gaps and openings.
In RVs, the most common leakage points include:
These are system realities of RV construction and repair. These are not necessarily defects.

Every draft complaint represents a problem for the customer. For your shop it represents:
A clear, solvable, high-margin service.
Air sealing stands out because:
From a business perspective:
Ultimately customers already understand the problem. They feel it every time they step inside their RV.
Some RV shops still struggle to consistently resolve draft issues.
The most effective shops treat air sealing as a process. This is commonplace for the insulation contractors around the country that use our Tytan Professional foam products daily, but for RV shops, this simple framework can help:

Traditional sealants often require perfect application conditions and struggle with irregular gaps.
Foam sealants, on the other hand:
The Department of Energy actually recommends low-expansion spray foam for sealing gaps around penetrations and joints.
For RV applications, where gaps are inconsistent and access is limited, foam becomes one of the most effective solutions available.
RVs and the materials they are built with experience some tough conditions:
Tytan Professional RV & Automotive Black Insulating Foam Sealant is designed specifically for these conditions. It has strong adhesion across building materials. This ensures long term sealing performance. It withstands vibrations and maintains integrity even as the RV flexes and shifts during travel. It has controlled expansion. This helps prevent overfilling and protects sensitive components which are important for the RV’s functionality. Using a Tytan Professional gun applicator, it has precision. This improves consistency, reduces waste, and increases technician efficiency.

Draft complaints are not going away. If anything, customer expectations around comfort and performance are increasing. The question is whether those complains will remain an issue, or be transformed into a profitable service.
You can take advantage of this opportunity by:
The Department of Energy: Air Sealing Your Home
Energy Star: New Air Sealing Fact Sheet
Building Science “Air Leaks – How They Waste Energy and Rot Houses”
ASHRAE – Fundamentals, ch. 27, 2005.
The Sealtech Leak Testing Method