Revolutionizing Wooden Frame Houses: The Path to Ultimate Energy Efficiency with Partel Innovations

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Wooden frame housing is not new to the United States. It’s one of the oldest methods of building homes in the world, and using timber continues to be a trusted and beloved building material because of its abundance, durability, and beauty. What may come as a surprise is that improving technologies are making this stalwart of the construction industry even more popular. In addition to seeing a surge in the total number of single-family home completions within recent years, the share of wood-framed homes has steadily increased, as well. In 2022, the most recent year for which we have data, 94% of homes were timber framed compared to 90% in 2019.

To help explain the increasing demand for wooden frame homes, this blog post will explore the following:

·         Why timber is a popular building material for sustainable construction.

·         How timber can be used as a regenerative building material.

·         The compatibility of timber construction with high-performance building methodologies.

·         How Partel’s line of products have been designed to enhance timber frame construction.

·         Real-world examples of how these products have been successfully used in the field.

The Role of Timber in Sustainable Construction

The growth in wood-frame construction is due to a variety of factors, including cost, availability, and builder familiarity, but there are additional reasons for choosing wood. Aesthetically speaking, wood is a warmer and softer material than either concrete or steel, and many residents feel that it creates a more inviting space as a result. Using wood can also be the more sustainable option because timber is a renewable resource when forest systems are properly managed, and timber is responsibly harvested.

An article recently published by Auri Mas of RMI in Passive House Accelerator magazine described the many ways that wood can be used within a larger context of sustainable land management. As Mas notes, “Harvest is not deforestation. Deforestation is the permanent change of forest land to another use.” Alternatively, responsible stewardship of forests can mean harvesting timber when appropriate, oftentimes to thin forests and make them more resilient to catastrophic forest fires. The proceeds from the sale of the timber can then be used to reinvest in the management of the forest, which helps provide the surrounding ecosystem with clearer air and cleaner water. Healthy forests also pull carbon from the atmosphere, where it is sequestered and stored as wood and in the soil.

Of course, materials choices are only part of the solution when it comes to sustainable construction. In addition to the upfront carbon costs of materials, there is also the issue of operational carbon, which concerns the level of emissions produced to heat, cool, and run the appliances in the home. Homes that are built using high-performance methodologies, like Passive House, dramatically cut down on the amount of energy needed for heating and cooling by using continuous insulation, airtight construction, thermal-bridge-free design, high-performance glazing, and ventilation systems with heat recovery. Abiding by these passive principles can reduce energy consumption to the point that all energy needs can be met by onsite and renewable energy sources.

Using sustainable materials (like wood) and extremely energy efficient methods of construction (like Passive House) results in the best of both worlds because they approach the problem of excessive carbon from both sides of the equation—the upfront or embodied carbon in the building and the operational carbon. Best of all, using both passive design and sustainable materials leads to homes that are clean, resilient, healthy, and extremely comfortable!

The Future of Wood Frame Houses in Energy-Efficient Construction

As building regulations tighten and the push for climate-conscious construction intensifies, the demand for high-performance building techniques and sustainable materials such as timber rises. As a result, high-performance wood frame homes are becoming increasingly popular, necessitating dependable components designed specifically for this construction method.

Partel meets this demand by offering a wide range of high-performance membranes and tapes, as well as comprehensive technical support to consumers, builders, and designers. Their unparalleled assistance ensures that customers of all backgrounds can address even the most complex requirements with confidence.

Partel’s Solutions: Tailored for Timber Frame Construction

Partel's air barrier system represents a comprehensive solution for improving building envelope performance. It combines specialized membranes, sealing tapes, high-strength adhesives, and innovative thermal bridge solutions to provide an integrated strategy to maximizing energy efficiency.

Partel has worked tirelessly to create membranes that work seamlessly with on-site or off-site timber construction. This includes well-known products like VARA PLUS, their cutting-edge vapor control layer; as well as their high-performance breather membrane, EXOPERM MONO 250 SA; and the IZOPERM PLUS membrane, a certified Passive House component with a wide range of applications.

This ceiling has been outfitted with the VARA PLUS membrane.
This ceiling has been outfitted with the VARA PLUS membrane.

VARA PLUS

VARA PLUS is an innovative airtight membrane made with hygro-variable material capable of responding to relative humidity and adjusting its permeability accordingly. Optimizing moisture flow ensures that the timber frame remains protected and that should any moisture become trapped, it can escape. VARA PLUS has an Sd range of 0.4m to 60m and is ideal not only for timber construction, but also in climates with extreme variabilities in relative humidity. It can be utilized as an inner airtight membrane or as a vapor control layer for external vapor open build-ups.

The EXOPERM MONO 250 SA self-adherent breather membrane will help keep wall assemblies mold-free and interiors comfortable.
The EXOPERM MONO 250 SA self-adherent breather membrane will help keep wall assemblies mold-free and interiors comfortable.

EXOPERM MONO 250 SA

The EXOPERM MONO 250 SA is a self-adherent breather membrane designed to be applied to the cold side of insulation, and is suitable for facades with closed joints, ceiling and floor timber structures, and both onsite and offsite construction. The membrane has an air permeance value of <0.001m3/(m2h) and an Sd value of 0.26m to ensure a strong, airtight connection in conjunction with excellent vapor permeability. EXOPERM’s Monolithic Technology also provides exceptional durability, making it suitable even as temporary protection during the construction phase.

CONEXO MULTISEAL Air & Windtight Tape

Both VARA PLUS and the EXOPERM MONO 250 SA are compatible with Partel’s CONEXO MULTISEAL tape, which is a certified Passive House component. You can learn more about CONEXO here.

The IZOPERM PLUS is here being used as an inner airtight membrane on a wall assembly.
The IZOPERM PLUS is here being used as an inner airtight membrane on a wall assembly.

IZOPERM PLUS

IZOPERM PLUS is a certified Passive House component that can be used as an inner airtight membrane and vapor control layer in roof, ceiling, wall, and floor assemblies. With an Sd value of 5m and an air permeance value of <0.01m3/(m2h), IZOPERM PLUS provides optimum vapor resistance and protection against humidity.

CONIZO Airtight Tape

CONIZO tape is compatible with IZOPERM PLUS and is ideal for use in humid climates. In addition to providing exceptional performance, CONIZO is also free of solvents and emulsifiers, and it has received the Ecolabel EMICODE EC1 PLUS, meaning it emits the lowest level of indoor air pollutants following installation.

The IZOPERM PLUS can be used in wall, ceiling, floor, and even roof assemblies.
The IZOPERM PLUS can be used in wall, ceiling, floor, and even roof assemblies.

Success Story from Ireland

In the idyllic outskirts of Tuam, Ireland, a remarkable project is underway to construct a timber frame self-build house that combines exceptional environmental sustainability with immediate accessibility requirements. The project was born out of a family's need to accommodate their son's changing mobility support requirements, and it meticulously integrates a dual focus on accessibility and environmental responsibility. The project's direction is guided by the homeowner's personal commitment to reducing the carbon footprint of their home. Despite the challenges, the family works closely with builders to use sustainable materials and high-performance construction methods, including extensive work with Partel to create an airtight timber frame home. This commitment extends to the use of products such as Partel's IZOPERM PLUS membrane, CONEXO MULTISEAL, and CONIZO tapes, all of which contribute to their vision of a sustainable and accessible home. 

“Our second priority (after accessibility) is minimizing the house’s carbon footprint—this is entirely my interest, so my wife left me to do all of the research and decision making here! I tried to consider embodied carbon in the construction methodology as well as carbon emissions during the lifetime of the house,” the homeowner explains.

You can learn more about this project here.

The Future of Wood Frame Houses in Energy-Efficient Construction

As building codes become more stringent and the efforts to address climate change become more widespread, high-performance building methods are only going to become more popular. The same is true of sustainable materials like timber. As a result, high-performance wood frame homes will become more prevalent, and builders will need reliable and durable components that are designed for the nuances associated with this kind of construction.

Partel not only offers a large suite of high-performance membranes and tapes to satisfy this demand; they also provide technical support services to consumers, builders, and designers. Their peerless support ensures that customers with a variety of backgrounds can find what they need and resolve even the most technical request.

You can explore Partel’s entire line of products by visiting their website here!

Author: Partel