Why Building Envelope Matters: 6 Places Airflow Control Fails and How Scapa Helps

May 15, 2026 | Building and Construction, Products

Driving energy savings through airflow control

Air leakage can be a common, but frustrating  cause of energy loss and moisture risk in buildings. Breaks in the air barrier allow uncontrolled leakage, which impacts efficiency, comfort, and durability.

Do you know what solutions to recommend to your customers when they are looking to seal seams and reduce long term risks?  Let’s introduce you to a system-based solution that can help improve performance. 

Fallon Ortman,
Assistant Manager, Product Marketing

1. House Wrap Seams

Unsealed weather barrier seams allow air to move freely behind cladding. Scapa 625 and 627 help maintain a continuous air barrier by sealing overlaps and supporting consistent exterior performance.

2. Sheathing & Rigid Foam Board Joints

Panel joints create linear air leakage paths across large wall assemblies. Scapa 637 is used to seal these joints and restore air barrier continuity across sheathing and insulation systems.

3. Windows & Doors

Openings are one of the most common sources of air leakage. Scapa 625, 627, and 637 support sealing at flashing and frame transitions, helping reduce air movement at these high-risk areas.

4. High Exposure Exterior Areas

Some applications require sealing solutions that can withstand extended outdoor exposure. Scapa UVX10 is designed for UV-exposed environments, helping maintain air barrier performance in demanding exterior conditions.

5. Penetrations and Transitions

Air barriers are most vulnerable where materials change or systems intersect. Using Scapa air barrier tapes helps maintain continuity around penetrations and transitions, reducing uncontrolled leakage paths.

6. Renovation and Containment Areas

During renovation or demolition, controlling airflow is critical to maintain separation and manage dust. Scapa 133 supports temporary containment systems by helping create controlled environments and limiting air movement between spaces.

 

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Where are the most common air leaks in the building envelope and how can they be sealed?

What products help seal house wrap seams, sheathing joints, and air barrier gaps?

How can distributors recommend solutions to reduce air leakage around windows, doors, and penetrations?

Why does air barrier continuity matter for energy efficiency and moisture control?

What are the best sealing solutions for airflow control in renovation, exterior, and high-exposure applications?