Energy-efficient Buildings

Recently, favorable policies for green buildings in many provinces and cities across the country are being intensively implemented.

The development of green buildings is not only the key to our realization of the dual-carbon goals, but also an important link in the global sustainable development trend.

To build energy-saving buildings, the requirements for exterior barrier house wrap vapour house wrap water barrier materials are very high, and environmental protection and high strength are far from enough.

Flashspun Hypak™ offer you breathable roof membrane, breathable walls membrane, breathable floors membrane to fit your unique needs.

Problems such as water vapor and wind protection are the main reasons that affect the thermal insulation performance of buildings and increase building energy consumption. If you also have these troubles and problems, and you want to buy permeable exterior home wrap to solve them, there we provide bulk house wrap vapour barrier materials for sale, at a good price. We can offer you creative breathable waterproof material for solutions.

Flashspun Hypak™ -- Sustainable & Green Building House Wrap Vapor Barrier Material
For building drainable house membrane wrap, Flashspun Hypak™ , one of the leading waterproof material suppliers, can be said to be a very versatile vapour barrier material for housewrap. These types of permeable house wrap vapour barrier materials can be used in various fields, such as building curtain wall, cold storage floor, metal&tile roof, passive building and so on.

Breathable · Waterproof · Recyclable：

The energy efficient house wrap with vapor barrier materials itself is not only 100% recyclable but also waterproof and breathable, which can resist rain erosion on the outside and prevent moisture accumulation on the inside. The "both internal and external repair" allows the building to "breathe smoothly" by using these types of drainable house wraps permeable vapor barrier.

Toughness · Durable：

Regardless of their lightness and softness, these kinds of breathable exterior house wrap with vapour barrier materials have extremely high strength, is easy to employ for double house wrap construction. Also, the permeable vapour barrier materials for housewrap are not easy to be damaged and age, and can also effectively resist wind, so as to maintain a longer-term effect (the same lifespan as the building).

Multiple breathable membrane barrier uses:

Breathable building wrap is a crucial component in modern construction. Whether used in walls, roofs, or floors, breathable membranes allow moisture vapor to escape from the structure while preventing liquid water from penetrating inward. This breathability helps regulate humidity levels, reducing the risk of mold and rot while improving energy efficiency. In timber frame construction, breathable wall membranes play a vital role in moisture management and thermal insulation. Similarly, roof breather membranes ensure proper ventilation in attic spaces, preventing condensation buildup and extending the lifespan of roofing materials.For sheds, lofts, and other structures, breathable membranes provide reliable protection against the elements while promoting airflow and moisture control. Overall, these versatile materials contribute to healthier, more sustainable buildings with superior comfort and longevity.

Inherent Hydrophobicity and Ultrafine Fiber Mesh Structure
Hypak™ can serve as a key waterproofing and protective layer in the building envelope, which helps with water vapor diffusion within the envelope while keeping the thermal insulation dry, significantly reducing thermal bridge formation, improving insulation, and cutting energy consumption.

Convenient for Construction and Easy to Install
Hypak™ meets the needs of different building designs

Excellent Windproof Performance
Hypak™ not only effectively eliminates the impact of air convection on the thermal insulation performance, but also helps to improve airtightness, reduce heat loss, and further lower energy consumption.

Advantages of Hypak™ building wrap paper material
Hypak™ building drainable house wrap material is a high-performance membrane that offers exceptional waterproofing and breathability properties. It is known for being easy to install and highly durable. What sets Hypak™ apart is its longevity, as it has the same lifespan as the building itself due to its outstanding physical and mechanical strength.

In addition to its impressive performance, Hypak™ building drainable house wrap paper also contributes to energy efficiency in buildings. It is 100% recyclable and environmentally friendly, making it a sustainable choice.



Hypak™ building wrap insulation material can be applied not only to Building Curtain Wall, but also to Metal/Tile Roof, Cold Storage Floor, window and door gaps, and various other scenarios to make Passive Building. Its versatility allows it to contribute to energy savings in all aspects of building design.



Hypak™ building drainable house wrap material stands as a pinnacle of construction innovation, offering a blend of waterproofing prowess and unparalleled breathability. Its high-performance membrane is renowned for its ease of installation and exceptional durability, making it a preferred choice for builders and contractors alike. What truly sets Hypak™ apart is its remarkable longevity, boasting a lifespan that matches that of the building itself thanks to its robust physical and mechanical strength.



Beyond its impressive performance, Hypak™ building drainable house wrap paper plays a pivotal role in enhancing energy efficiency within structures. Not only does it provide superior insulation, but it is also 100% recyclable and environmentally friendly, aligning with sustainable building practices and regulations.



The versatility of Hypak™ extends far beyond conventional applications. From Building Curtain Walls to Metal/Tile Roofs, Cold Storage Floors, and even sealing window and door gaps, this insulation material can be seamlessly integrated into various scenarios to foster Passive Building designs. By contributing to energy savings across all facets of building design, Hypak™ emerges as an indispensable asset in the quest for sustainable and efficient construction practices.



Incorporating breathable membrane technology, Hypak™ ensures proper airflow while preventing moisture buildup, thus mitigating the risk of mold and structural damage. Its adaptability to diverse environments and structures makes it a versatile solution for modern construction challenges.



With Hypak™, builders can confidently embark on projects knowing they are utilizing a cutting-edge material that not only meets but exceeds industry standards for performance, durability, and sustainability.



Challenges Facing the Construction Industry
Building insulation is crucial for energy saving. The insulation system, typically consisting of porous materials and trapped air, can be susceptible to water vapor, which leads to the doubling of thermal conductivity, resulting in a significant decline in thermal insulation performance. For instance, when the water content in common insulation materials like rock wool reaches around 30%, the thermal conductivity can nearly double.

In the absence of windproof protection, wind with a velocity of 3.6m/s (Level-3) can readily infiltrate a building through seams or cracks in the building's structure. When thermal insulation lacks windproof protection, the movement of air due to convection can significantly diminish a building's thermal insulation performance by up to 30%.

If water vapor in the building insulation does not diffuse timely, it will lead to the accumulation of condensation within the insulation and the building envelope which can have several negative consequences, including increased energy consumption for temperature control and a negative impact on the stability of the building envelope.

Contact us to buy house wrap and know the details of air permeable materials.