A Better Way to Build the Building Envelope
When it comes to protecting a home from air and water intrusion, the biggest difference isn’t what you see, it’s what’s behind the walls. The choice between a fully integrated system and a traditional housewrap approach has a direct impact on durability, efficiency, and long-term performance.
At Burns Construction, this is one of the decisions that defines how well a home will perform over time.
What Is the ZIP System?
The ZIP System is an all-in-one wall and roof sheathing system with a built-in air and water-resistive barrier. Instead of installing OSB and then wrapping the home, ZIP panels are installed and the seams are taped to create a continuous barrier.
This creates a tighter, more controlled building envelope with fewer steps and fewer opportunities for failure.
What Is Traditional Housewrap?
Traditional systems use standard sheathing, followed by a separate housewrap like Tyvek installed over it. The wrap is stapled or nailed on, seams are taped, and then windows and penetrations are flashed.
It’s a long-standing method and widely used, but it relies heavily on proper installation across multiple layers and trades.
Air Sealing and Performance
One of the biggest differences between these systems is how well they control air movement.
ZIP creates a continuous air barrier at the sheathing level. With all seams taped directly to the panels, there are fewer breaks and transitions, which results in a tighter home. Less air leakage means better energy efficiency, improved comfort, and more control over humidity—especially important in South Louisiana.
Traditional housewrap can perform well, but it is more dependent on installation quality. Staples, tears, and inconsistent taping can all reduce its effectiveness. Over time, that can translate into more air infiltration and less predictable performance.
Water Management
Both systems are designed to manage water, but they approach it differently.
ZIP acts as a fully adhered barrier once taped, creating a more rigid and durable surface that is less susceptible to damage during construction. It also integrates more cleanly with flashing and penetrations when installed properly.
Housewrap systems like Tyvek are designed to shed water, but because they are mechanically fastened, they are more vulnerable to tearing, billowing, or improper lapping if not carefully installed. In high-wind or high-moisture environments, those small inconsistencies can matter.
Durability During Construction
This is where the difference becomes very noticeable on a jobsite.
ZIP panels are rigid and hold up well to weather exposure during the build process. They can remain exposed for a period of time without compromising performance, which adds flexibility to the construction schedule.
Housewrap, on the other hand, is more fragile. It can tear, loosen, or degrade with extended exposure, especially in wind or heavy rain. That often leads to repairs, rework, or compromised areas that are difficult to catch once the siding is installed.
Installation and Long-Term Reliability
ZIP simplifies the process by combining multiple steps into one system. Fewer layers mean fewer transitions, and fewer transitions mean fewer opportunities for something to go wrong.
Traditional housewrap systems require coordination between sheathing, wrapping, taping, and flashing. When done perfectly, they can perform well. But they leave more room for inconsistency, especially across different crews and jobsite conditions.
The Bottom Line
Both systems can work, but they are not equal.
ZIP offers a more controlled, durable, and higher-performing building envelope with fewer variables. It aligns with a building approach that prioritizes long-term performance over short-term convenience.
Traditional housewrap remains common because it is familiar and cost-effective upfront. But in a high-performance home, the envelope is not the place to compromise.
A well-built home starts behind the walls. This is one of the details that makes the difference.