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The Importance of Breathable Wall Wrap

While protecting your home with wall wrap has been common practice for some time, the National Construction Code (NCC) has recently implemented changes. These updates require builders to use vapour permeable wall wraps for lightweight and brick veneer constructions. This signifies a shift away from traditional reflective wraps, which are no longer considered as effective.

The reason for this change lies in how these wraps handle moisture. Traditional reflective wraps can trap water vapor within the wall cavity. This trapped moisture can lead to problems like mold growth and structural damage. To address this issue, experts at CSR Bradford have developed the Enviroseal™ ProctorWrap™ residential wrap.

This innovative product adheres to the new NCC regulations, ensuring your home meets the latest industry standards for moisture management. But the benefits of Enviroseal™ ProctorWrap™ go beyond compliance. Let’s explore the specific advantages this breathable wall wrap offers for your home.

Reduces the Risk of Condensation

One of the key benefits of using a breathable wall wrap, like Enviroseal™ ProctorWrap™, is its ability to reduce the risk of condensation. Condensation occurs when warm, moist air encounters a cooler surface. In the context of homes, this can happen when warm interior air meets the cooler walls during colder months. Traditional reflective wraps can trap this moisture within the wall cavity, creating a perfect environment for mold growth and potential structural damage.

Enviroseal™ ProctorWrap™, on the other hand, is vapour permeable. This means it allows water vapor from inside the house to pass through the wrap and escape outwards. By allowing this vapor to escape, the wrap helps to:

  • Maintain a consistent temperature within the wall cavity: This reduces the chance of warm, moist air meeting a cool surface and forming condensation.
  • Prevent moisture build-up: By letting vapor escape, the wrap prevents it from accumulating within the wall cavity, which can lead to rot and other problems.

In essence, Enviroseal™ ProctorWrap™ acts like a breathable barrier, allowing your home to “breathe” and regulate moisture levels naturally. This not only protects your home from structural damage but also promotes a healthier indoor environment by preventing mold growth.

Additional Protection During & After Construction

In the context of “The Importance of Breathable Wall Wrap,” the section “Additional Protection During & After Construction” would likely focus on the ongoing benefits of using a breathable wall wrap beyond the initial construction phase. Here’s a possible explanation:

Additional Protection During & After Construction

While a breathable wall wrap like Enviroseal™ ProctorWrap™ plays a crucial role during construction by managing moisture and complying with NCC standards, its benefits extend well into the lifespan of your home. Here’s how this innovative wrap offers additional protection throughout the years:

  • Enhanced Durability: Breathable wall wraps help protect the structural elements of your home from moisture damage. By allowing trapped moisture to escape, they can reduce the risk of rot, mold growth, and corrosion of framing materials. This translates to a more durable and long-lasting home.
  • Improved Indoor Air Quality: Moisture buildup inside walls can contribute to poor indoor air quality and the growth of allergens like mold. Breathable wall wraps help maintain a healthy indoor environment by allowing excess moisture to escape, making your home more comfortable and potentially reducing respiratory problems.
  • Energy Efficiency: Moisture trapped within walls can also affect the thermal performance of your home. A breathable wall wrap helps maintain optimal insulation by preventing moisture from accumulating within the insulation material. This can lead to improved energy efficiency and potentially lower heating and cooling costs.

In conclusion, Enviroseal™ ProctorWrap™ offers not only essential protection during construction by complying with NCC regulations, but also provides ongoing benefits throughout the life of your home. It promotes a healthier living environment, protects the structural integrity of your home, and can even contribute to improved energy efficiency.

Increased Versatility

In the context of “The Importance of Breathable Wall Wrap,” the section titled “Increased Versatility” likely refers to the adaptability of Enviroseal™ ProctorWrap™ compared to traditional wraps. Here’s a possible explanation:

Enviroseal ProctorWrap: A Versatile Solution

One of the significant advantages of Enviroseal™ ProctorWrap™ is its increased versatility. Unlike traditional wraps designed for specific cladding materials, Enviroseal™ ProctorWrap™ is compatible with a wide range of lightweight cladding options. This includes materials like brick veneer, fiber cement (Hebel®), James Hardie™ products, timber, metal sheets, and even foam cladding.

This versatility simplifies the construction process for builders by offering a single wall wrap solution for various cladding applications. It eliminates the need to choose different wraps based on the specific cladding material, reducing confusion and potential errors during installation. Additionally, for homeowners, this translates to broader compatibility, ensuring Enviroseal™ ProctorWrap™ remains a suitable choice regardless of their preferred cladding material.

Increased Versatility

The importance of breathable wall wraps, also known as vapor-permeable wraps, goes beyond just adhering to the new NCC regulations. These innovative wraps offer a significant advantage in terms of their increased versatility. Unlike traditional reflective wraps, which are limited in their application, breather wall wraps can be used with a wider range of cladding materials.

Here’s how breather wall wraps demonstrate their versatility:

  • Compatibility with Various Claddings: Unlike their reflective counterparts, breather wall wraps can be used with a variety of cladding materials commonly found in modern construction. This includes brick veneer, fiber cement (like Hebel® and James Hardie™), metal sheets, timber, and even foam claddings.
  • Air Cavity Necessity: While offering this broader compatibility, breather wall wraps do require an air cavity between the wrap and the cladding. Thankfully, most modern cladding systems already incorporate batten or clip systems that create this necessary air gap. This ensures proper ventilation and functionality of the breather wall wrap.

This increased versatility of breather wall wraps translates to several benefits for builders and homeowners alike. Firstly, it simplifies the construction process by allowing the use of a single wrap for various cladding materials. Secondly, it provides broader protection for different types of homes, ensuring better moisture management across various construction styles.

Improved Energy Efficiency

One of the key benefits of using a breathable wall wrap, like Enviroseal™ ProctorWrap™, is its contribution to improved energy efficiency. Traditional reflective wraps, while offering some protection from the elements, can hinder a wall’s ability to “breathe.” This breathability refers to the ability of the wall system to allow trapped moisture vapor to escape.

When moisture vapor becomes trapped within the wall cavity due to an impermeable wrap, it can condense on cooler surfaces within the wall. This condensation can then lead to problems like mold growth and insulation degradation. Both mold and wet insulation can significantly impact a home’s energy efficiency. Mold growth can reduce indoor air quality, potentially leading to respiratory problems for occupants. Wet insulation loses its effectiveness in trapping heat in winter and cool air in summer, forcing your HVAC system to work harder to maintain comfortable indoor temperatures. This translates to higher energy bills.

Breathable wall wraps, like Enviroseal™ ProctorWrap™, address this issue. Their vapor permeability allows trapped moisture vapor to pass through the wrap and escape outwards, preventing condensation and its associated problems. This promotes a healthy and dry wall cavity, which in turn optimizes the performance of your insulation and minimizes energy consumption for heating and cooling your home.

Meets NCC Requirements

The concept of protecting your home with a wall wrap isn’t new. However, recent updates to the National Construction Code (NCC) have significantly impacted how we approach wall protection in modern construction, particularly for lightweight and brick veneer homes.

Previously used reflective wraps are no longer considered sufficient due to their inability to manage moisture effectively. These wraps can trap water vapor within the wall cavity, creating a breeding ground for mold and potentially leading to structural damage.

This is where breathable wall wraps come into play. The NCC now mandates the use of vapor-permeable wraps, also known as breather wall wraps. These advanced materials allow water vapor to escape from the wall cavity while still offering excellent protection against wind and rain. This prevents moisture buildup, ensuring a healthier and more durable home environment.

The Enviroseal™ ProctorWrap™ residential wrap, developed by CSR Bradford, exemplifies a breather wall wrap that meets the strict NCC requirements. By choosing a product like Enviroseal™ ProctorWrap™, you’re not just complying with building codes; you’re actively safeguarding your home against the potential problems associated with trapped moisture.


In conclusion, breathable wall wraps have become an essential element in modern construction, particularly for lightweight and brick veneer homes. The National Construction Code’s (NCC) recent update highlights the importance of proper moisture management within wall cavities. Traditional reflective wraps, while offering some protection, can trap moisture, leading to potential problems.

Breathable wall wraps, like the Enviroseal™ ProctorWrap™, address this issue by allowing water vapor to escape, preventing its buildup and the associated risks. By utilizing a breathable wall wrap during construction, you ensure your home complies with the latest NCC regulations and benefits from superior moisture management. This translates to a healthier living environment and a more durable structure for your peace of mind.

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