Wood remains a prominent choice in modern architecture and design, and stands out as a leading building material. Given its natural and biodegradable characteristics, debates frequently arise regarding its longevity. As a result, manufacturers of building materials are continually engaging in exploration and innovation to meet evolving demands and preferences. They strive to enhance and discover sustainable solutions, with modified wood emerging as a forefront choice in this endeavor. reSAWN TIMBER co.’s Sylva™ product line is designed with functional and sustainable attributes in mind. This article explores the unique qualities and benefits that make this material a standout choice for various architectural projects.
Lower Embodied Carbon: Domestic Species & Sustainably Sourced Currently, Sylva consists of locally harvested, FSC®-Certified North American Red Oak. FSC certification ensures that the Sylva product line comes from forests where responsible and sustainable forest management practices are implemented. This includes considerations for biodiversity, ecosystem health, and the rights of local communities. The distance between its harvesting and manufacturing locations is less than three hours, leading to a significant reduction in carbon emissions. Harvesting wood locally reduces the carbon footprint associated with transportation, contributing to an eco-friendly building process. By sourcing materials regionally, builders and architects can support local economies and reduce the environmental impact of their projects.
Natural Aesthetic One of the most striking features of North American Red Oak is its gorgeous red undertone that delivers a rich and distinctive appearance. The thermal modification process enhances the coloration and boosts the wood’s natural beauty, giving it a warm and elegant aesthetic. One notable aspect of Red Oak is its variability in color, even timber sourced from the same tree can showcase varying shades. This inherent diversity in color lends itself to creating a versatile design, imbuing surfaces with visual depth, complexity, and an added touch of sophistication. The material can be used to seamlessly blend with a variety of design styles, from traditional to modern, making it a multifaceted choice for architects and designers seeking a timeless and visually appealing solution.
Thermally Modified Process The thermal modification process involves exposing the Red Oak to high temperatures in a controlled environment, altering its chemical composition. This process enhances the wood’s durability, stability, and resistance to decay. As a result, thermally modified Red Oak cladding offers a longer lifespan and requires less maintenance when compared to unfinished wood.
Resistance to Decay One of the primary concerns with wood cladding is its susceptibility to rot and decay. Thermally modified Red Oak addresses these concerns by becoming highly resistant to decay through the thermal modification process. The high temperatures cause chemical changes in the wood, leading to the modification of its cellular structure. Hemicellulose, one of the wood’s components, is permanently affected. The breakdown of hemicellulose reduces the wood’s ability to absorb and retain water, making it less susceptible to decay. This resistance ensures that the cladding remains durable and maintains its original quality, even in challenging outdoor environments.
Stability and Dimensional Consistency The thermal modification process not only enhances the wood’s visual appeal but also improves its stability. The timber experiences chemical modification during the process that significantly reduces the timber’s susceptibility to absorb moisture and swell, resulting in a more dimensionally stable material. This stability is crucial in ensuring that the cladding maintains its structural integrity over time, even in varying environmental conditions.
Ease of Maintenance Sylva requires minimal maintenance when compared to unfinished wood cladding. Its enhanced durability and resistance to decay means that it can withstand the elements without deteriorating. This not only saves time and effort for property owners but also contributes to the material’s longevity and cost-effectiveness.
Wide Range of Color Selection The Sylva product line includes 13 products, with 5 featuring the Shou Sugi Ban technique during manufacturing. The base color of thermally modified red oak provides a versatile foundation for creating finishes in a wide range of rich tones. The colors range from browns to greys, to Shou Sugi Ban black. These products are suitable for both exterior and interior applications. The carefully chosen color palette was designed with precision to effortlessly blend the wood aesthetics both inside and outside, cultivating an environment that promotes a consistent and harmonious wood-themed aesthetic throughout the entire space.
The versatility and benefits of locally harvested thermally modified wood cladding make Sylva a compelling choice for architects, designers, builders, and even homeowners committed to sustainability and quality. From its sustainable sourcing practices, meticulously managed thermal modification process, and enhanced aesthetic appeal and durability, this material offers a harmonious blend of form and function. As the construction industry continues to prioritize eco-friendly and resilient solutions, Sylva cladding stands out as a reliable and aesthetically pleasing option for various architectural applications.
Contact us to connect with a reSAWN TIMBER co. specification consultant and explore the opportunities for incorporating Sylva™ Thermally Modified Red Oak into your next project.
In this video, Scott Stevens from reSAWN TIMBER co. walks us through the Six Square House in Bridgehampton, NY. This 3,500 sq.ft. residence, featuring two bedrooms and three bathrooms, presents a modern interpretation of the area’s conventional barn designs. The home is made of six 24’ x 24’ modules that all feature gabled geometry and a complex-looking roof design that’s shaped like an inverted V. Additionally, this layout capitalizes the surrounding landscape, with each module offering a unique view of the lush property.
Young Projects specified reSAWN TIMBER co.’s IKIGAI FSC®-Certified Accoya wood for the exterior cladding and roofing. The design incorporates an open joint rainscreen to promote ventilation and includes a waterfall edge for effective water drainage. In its entirety, the Six Square House explores gabled geometry, achieving a balanced fusion of symmetry and asymmetry.
Returning to the residence three years later, the exceptional endurance and visual appeal of the IKIGAI cladding made a lasting impression, showcasing its minimal need for maintenance or cleaning.
Accoya® Wood: The Beauty of Wood, Without the Maintenance
reSAWN TIMBER co. is honored and proud to have our IKIGAI Shou Sugi Ban product featured on the exterior of the beautiful Six Square House. The high-performing product aged gracefully after three years of installation and will continue to do so due to Accoya® wood’s extreme durability. We appreciate Young Projects for specifying our product for this project and look forward to continuing our partnership in the future.
IKIGAI – FSC®-Certified, Shou Sugi Ban Accoya® wood can be used for interior or exterior wall cladding. IKIGAI is finished with a dark gray topcoat designed to protect the wall cladding as it naturally weathers over time. reSAWN’s award-winning charring technique adds depth and dimension to Accoya’s natural grain pattern.
Architects and designers can request complimentary Accoya samples to assist in your project decisions.
Hey guys, Scott Stevens here with reSAWN TIMBER co. We’re here in Bridgehampton, NY, looking at the Six Square House designed by Young Projects. This home is 3,500 sq.ft. and sits on about two acres of land. Construction was finished in 2020, and we’re visiting three years later to observe how the wood siding and wood roof cladding have performed and weathered over time.
This project utilizes our IKIGAI product, which is produced on Accoya®. Accoya is an exceptionally high-performing modified wood, backed by a 50-year warranty against rot and decay when used above ground (25 years in ground or freshwater). It also offers remarkable dimensional stability, making it a low-maintenance material for your home and this specific finish. IKIGAI is designed to naturally and consistently weather over time.
For this particular application, the architect designed a two and half inch slat in your more traditional open joint rainscreen. What this rainscreen does is that it separates the siding from the sheathing to promote 360 airflow and rear water drainage. The benefit of that is to allow for the wood to fully breathe and dry out. Which adds to the longevity of the material.
Another interesting detail is that they panelized the installation so they were able to blind fasten from behind and hang the panels on the building to ensure a secure fastening so the wood isn’t moving or going anywhere. If you take a closer look at the wood roof cladding down to the siding, there’s a really nice waterfall edge that allows for actual water to sheath down, but also just a really clean detail well executed by the installer as well to keep those crisp, clean lines that the architect intended.
After three years of weathering, it’s evident that IKIGAI is evolving and weathering as it’s intended to do. Lightening up and fading over time to that really quintessential coastal gray color. Due to Accoya’s modification process, there’s no need to reapply the finish. Although, it is always good to do so. Freshen it up and you can get back to that original day one color over time.
We want to shout out Young Projects for not only specifying our material, but designing such a beautiful project that showcases it along with all the other materials on the project.
If you’re very interested in receiving samples of IKIGAI or any of reSAWN’s other product offerings, feel free to reach out and we’ll connect you with the Specification Consultant in your area to help you select the right product for your project.
Local Project – Architect Designs a Breathtaking Home Connected to Nature
The Local Project offers an in-depth look at the Six Square House, where architect Bryan Young, delves into the project’s initial vision and how it came to life. As a meticulously crafted residence, it serves as a prime example of how an architect achieves a breathtaking home through thoughtful design and execution.
Architecture Hunters – Six Square House: Bridging the Private and Public.
In the interview with Architect Hunter, Architect Bryan Young delves into the intricacies of the Six Square House, examining its adaptable and interconnected spaces. Bryan underscores the significance of wood elements in facilitating both visual and tactile transitions between different areas. The house sparks a broader architectural discourse on evolving dynamics in urban environments, thereby paving the way for innovative architectural explorations.
In this video and article, John Marley from Spire Builders takes us on a tour of the construction process of the Lake Shore Drive Project, an 18,000 sq.ft. home in Delaware County, PA. The Feng-Shui designed home features a sauna, indoor pool, outdoor pool, tennis court, and multiple outdoor spaces for family-gathering.
This modern home features over 3,900 sq. ft. of reSAWN TIMBER co.’s NIGIRI Charred Accoya® exterior cladding. The exterior ceiling cladding displays reSAWN’s LEWIS Western Hemlock. The custom home introduced unique challenges and innovative structures that make this project one of a kind. The home features 40 tons of commercial steel beams to support the main entrance of the home. The framing of the house is supported by a Knightwall system that holds the cladding, the hidden gutters, and the intricate window structures.
Revisiting the residence after three years, the remarkable weathering performance of the NIGIRI cladding leaves an indelible impression of durability and beauty while requiring little to no maintenance or cleaning.
Accoya® Wood: The Beauty of Wood, Without the Maintenance
reSAWN TIMBER co. is honored and proud to have our NIGIRI Shou Sugi Ban product featured on the exterior of the beautiful Lake Shore Drive Project. The high-performing product aged gracefully after three years of installation and will continue to do so due to Accoya® wood’s extreme durability. We appreciate Spire Builders for specifying our product for this project and look forward to continuing our partnership in the future.
NIGIRI – FSC-Certified, Shou Sugi Ban Accoya® wood can be used for interior or exterior wall cladding. NIGIRI is finished with a grey topcoat designed to protect the wall cladding as it naturally weathers over time. reSAWN’s award-winning charring technique adds depth and dimension to Accoya’s natural grain pattern.
Architects and designers can request complimentary Accoya samples to assist in your project decisions.
Hey, I’m John Marley from Spire Builders. I’m here to give you a tour of one of our custom home projects in Delaware County, PA.
This is a large, modern house with about 18,000 sq.ft. of residential space. It’s built with a commercial-grade steel structure, which weighs about 40 tons. The steel structure is a major component of the house, as you can see in the catwalk area. It was important to get the foundation and steel structure as precise as possible, so we used shop drawings to plan everything out in advance.
Once the steel structure was in place, the framers took over. With modern houses, you have to think about every single detail from the framing stage all the way down to the finishing stage, because it could affect things later on.
This house has a lot of challenges that actually make it really unique. For example, we’re building some of the components out of order. We’re installing some of the drywall before we finish other installations. Then, once the drywall is in place, we’re starting on the flooring and trim. This is a bit of a backward way to build, but it’s necessary for this particular house.
All projects start with good drawings and the architect for this project had a very detailed set. We worked out a lot of the details in the mock-up process, but the architect was able to start specifying where he wanted the start corner and other things like that.
We have incorporated a unique and interesting design feature for the window structure. We have cross-section views that provide a detailed look at the construction. In these views, you can see the siding, concealed gutter system, and the Knight Wall system, which plays a vital role in supporting and securing all the elements of the window structure.
Even better, the cross-section views show that the stone and the siding are all in the same plane. This is because the Knight Wall system impacts everything.
We are working with the TBD architects in New York City. You (reSAWN TIMBER co.) introduced them to some of your materials. We narrowed down our choices to the NIGIRI Accoya® Shou Sugi Ban product which presents a dark grey tone and will keep that consistent color throughout its lifetime.
Accoya® wood is a radiata pine that is chemically modified. It is a modified timber in which a process is called acetylation, a cutting-edge patented technology that enables it to resist rot and stays strong for decades. It has a 50-year rot warranty above grade and a 25-year rot warranty at or below grade.
Accoya wood accetylation process
That was a major deciding factor for the client. The client wanted a material that was both low-maintenance and long-lasting. They wanted something that would not require a lot of upkeep, but that would also age and weather gracefully.
The NIGIRI cladding material used is a 1 x 4 board, measuring three and one-half inches in width and three-quarters of an inch in thickness. It features an open-joint design with square corners.
The window jambs run all the way out to the face of the siding material. They are finished on three sides, with the back sides pre-sealed. That extends all the way out to the face, so that way everything is flush.
The window sill has a separate profile that looks very similar. It has a slight pitch and even has a routed groove on the bottom to drain water and moisture away from the sill instead of letting it run back around to the other side of the sill.
We also included an open joint that continues all the way around the window units and in between all the siding.
During the mid-construction phase, you can see where the Knight Wall and window trim have been installed. This process starts at the framing stage, where we used a variety of products, including Green Zip and Benjamin Updike InvisiWrap.
Green Zip is typically used for roof applications, but it can also be used as an exterior weather barrier. However, because the open joint siding cannot rely on this as its facade, we use InvisiWrap, a black wrap that can withstand open joint cladding. InvisiWrap has a 365-day exposure rating and can handle up to two-inch open joint gaps, which is perfectly in line with their warranty. The backside of this product is like a diaper in that it allows moisture to pass through it, but not through the face of it. This means that it acts as an extra raincoat, keeping moisture out while still allowing it to escape.
The next component of this project was the Knight Wall system. I specified this system because I had concerns about the architect’s original plan to use a wood frame structure that would be painted black to hide everything. I was worried about water and rot causing the substructure to fall apart before the siding, which would void the 50-year warranty.
I was able to find a commercial system that is typically used for exterior insulation. This system uses wall clips and long screws to attach the siding system to the frame, which raises the siding off the wall by six inches. This is done for a few reasons, but it is primarily used for exterior insulation.
The rails that we use can be coated with black paint, so we made sure to get them with that coating. This ensures that the silver siding will be visible, and it even has a soft coating to protect projects in coastal environments.
The architect wanted a deeper window jamb, which is why the Knight Wall system was used. This system creates a more visually appealing exterior, and it also allows for a hidden gutter detail and a flush installation with the stonework. The Knight Wall system also helps hide structural components, which makes for a more seamless and aesthetically pleasing finish. It is really unique and it worked out really well for this project.
With the open joint design, a significant amount of flashing is required. Traditionally, regular head flashing is used, but for this project, we opted for a zinc-coated copper flashing instead of the traditional lead-coated copper. We employed a double-head flashing profile, which effectively directs water and any debris away from the house.
To ensure a watertight envelope penetration system, we utilized Quick Flash Units. There are various penetrations, such as outlets, hose bibs, electrical boxes, and even camera wires. The open joint system demands thorough attention to detail; nothing can be overlooked.
The siding material is pre-finished on all sides, but all cuts must be glued and sealed. We use a PPG stain that reSAWN TIMBER recommended, and we apply it with little roller applicators. The cuts are not visible here because they are all butt jointed. However, even butt joints need to be pre-sealed to prevent any issues. I actually tested not sealing the cuts, and it didn’t affect the finish at all. However, we sealed every cut to be on the safe side.
The hidden gutter design was originally introduced to the architect, who drafted the siding and spaced out the gutter detail. It was up to us to make it a reality. The Knight Wall system actually came after the fact, because they had originally drawn a wood framing system that would actually hold the siding. This would have to be black, and there were concerns that it would rot out. We were even going to have to notch out some of the pipes to get them back into the structure. By using the Knight Wall system, we were able to hide a lot of those pipes behind the structure.
Behind this siding piece is the hidden gutter. There is a drop point, and the pipe runs behind the siding system and stubs out to a drain point. We would not be able to do this with a normal system. It is pretty cool that we are able to run the piping behind the rails and hide everything.
The siding material alone is very custom, but one thing that was even more custom was the window jambs. We had everything drawn up and signed off on, and I was even able to provide a profile for the sill. They were able to completely custom-make all of the profiles for us, which was awesome. We would not have been able to achieve the same look without having everything pre-finished to that profile.
We also had very custom exterior doors made at a later date. We milled the raw material to our specifications and then sent it back to reSAWN TIMBER to be finished. This ensured that the doors would match the siding exactly.
The window jamb material had to be specified exactly. The siding system is six inches, and we know that the flanges tend to feather things out a little bit. So I specified the jamb material at five and three-quarters of an inch. This gave us a little bit of flexibility.
So far, we haven’t had to rip any jamb material down. We did order a few extra wide siding boards. In tight little areas, we had to rip it a little bit on site. The edge was then pre-sealed. In certain areas, we might need three and three-quarters or close to four inches. Having those wider boards will actually help resolve those issues.
There are a few different corner details that were done for this project. The architect wanted a simple lap joint, but each corner is being handled a little bit differently.
We measure from ten feet away to ensure that the board lap looks consistent from all angles. For example, we might have to face a board lap forwards or place it on its side, depending on the view. We had to consider the porch area, for instance. They will want to see more of a full board on that side, as opposed to this side, where you can’t see it from here unless you’re 30 feet down below. Even though it’s a simple corner detail, every single corner on the house is thoroughly thought out.
This house has a mixture of cedar and flat roofs structure. The cladding is able to touch grade, but we left a small reveal of about a quarter of an inch along the E-vent’s.
On the side of the house, we’re able to have a drip cap with the gable window. This will allow the siding to tuck up and hide, and be protected.
In areas where we have a flat roof, we’re able to run the siding down. Our deck system ended up butting into that structure and hiding the edge of those boards.
With a 50-year rot warranty, the cladding can touch grade even if it is touching the roof structure. Some materials, like fiber cement siding, require an inch and a half to two inches of exposure to prevent moisture from breaking down the material. However, this material does not require that.
With the 4 x 1 boards, we were able to use a fastener every 24 inches because that is a specification for the Knight Wall. A system like this would typically hold 22 pounds per square foot, and the rails would be spaced 12 inches apart. This is similar to what is required for a stone veneer. However, this system worked better for this project.
We are using a single fine-trim stainless, self-tapping screw for the metal rail system. Even though it is a self-tapper, we are still pre-drilling to prevent the boards from pushing out.
We considered using a Simpson stainless self-drilling trim screw that matches the siding, but the architect was concerned that it would stand out over time. Stainless steel is tried and true, and it looks the same pretty much all year and it has a high resistance to rust.
We use two different sizes of screws for the jambs and the siding. The shorter screw is one inch and a quarter long, and the longer screw is two and a half inches long. The jamb material is one and a half inches thick, and the siding material is three-quarters of an inch thick.
The project started with a mockup. I built the mockup for a couple of reasons. First, I wanted the client to make an informed decision about the products we would use based on their performance and appearance. Second, I wanted to create an instruction booklet for the installation. I took step-by-step pictures of the installation and put them together in a bid packet. This way, all of the subs who were bidding on the project would have the same information. It also helped me to select the right contractor. Some subs turned down the project because it was too much or too involved.
The mockup included reSAWN TIMBER co.’s WABI SABI and NIGIRI exterior siding. We also tried out 1 x 6 and 1 x 4 boards. The client ultimately went with the 1 x 4 boards. The mockup also allowed us to see two different types of stone and the hidden gutter detail.
The mockup has been up for over a year and NIGIRI looks almost exactly the same as it did on day one. The WABI SABI cladding has faded out a bit, which is how it naturally weathers. However, the client preferred the darker tone of NIGIRI and how it stays consistent over time.
The stainless steel fasteners will eventually match the color of the siding, as the siding darkens over time. We used two screws per board in some areas, but with Accoya’s specifications, we can actually use one screw per board. This material has very little expansion or contraction.
The siding was installed with a three-sixteenths of an inch open joint, and remarkably, there has been no movement whatsoever. This speaks to the impressive stability of the material. Even the boards that were left unsealed on the underside remain undamaged, showcasing the remarkable durability of this natural wood material.
Three Years Later
After three years, we revisited this residence with NIGIRI siding, an Accoya® material that’s been charred and stained. The siding has impressively weathered without any signs of wear, and it has demanded no maintenance or cleaning. The most demanding aspect of the project was constructing the garage doors and exterior door. We had to mill the material according to the door specifications before relying on reSAWN TIMBER to finish it flawlessly.
reSAWN is humbled to share that PI.KL architecture design studio in Baltimore Maryland chose our custom shou sugi ban charred Accoya® on their Broadway Market project.
2019 AIA Excellence in Design Awards
Broadway Market was recognized with two awards at the 2019 AIA Baltimore Excellence in Design Awards:
AIA Baltimore Excellence in Design Award Honorable Mention
AIA Baltimore Good Design = Good Business Award
It was included amongst so many deserving projects of all scales. We’re so happy to be a part of such an important community revitalization.
“The design team did a fantastic job updating the 200-year-old market to better support business and the community. They showed great attention to detail—the doorways are amazing. You can tell a lot of care went into restoring the market. The jury was impressed with the take on the “black box”—by providing a layer of glass between the box and the facade of the brick structure, the design acknowledges the history of the building and the woodshed structure. The jury appreciated how the shou sugi ban treatment draws the user to see the difference between old and new”. – AIA Baltimore
We’re so honored that Studio B Architects chose to specify reSAWN’s DUNCAN 2.0 shou sugi ban Western Red Cedar exterior cladding at the “Blur House” in Boulder, Colorado.
Studio B received 2 awards at the 2019 AIA Colorado design awards celebration for the project.
Award of Distinction for AIA – North
Award of Excellence for AIA Colorado
The AIA Colorado Annual Design Awards honor the most outstanding work of AIA Colorado members and their firms, which reinforces the value of great architecture and highlights members’ positive contributions to the community.
In partnership with a local builder and interior designers, Philadelphia magazine creates Design Home, an extraordinary showcase of craftsmanship, architecture, and design. With a new location each year, the project brings something new to the regional home market. The home is open for 3 weeks with tours and special events that allow you to admire the details which will leave you feeling inspired. We invite you to tour this exceptional home where modern design meets traditional living.
Now in its 16th year, the Philadelphia Magazine Design Home is always an extraordinary example of luxury living in the Philadelphia region. Doors open to the public starting October 12th, with all ticket proceeds benefitting MANNA (Metropolitan Area Neighborhood Nutrition Alliance).
Located in Seaview, Fire Island, this 4 bedroom seasonal home was designed to celebrate the cherished indoor/outdoor experience of Fire Island. Designed by Paul Coughlin of Brooklyn-based PAUL architecture studio, this project utilizes UNAGI and TAKEI shou sugi ban charred Accoya exterior siding and LONGPORT black walnut flooring and ceiling cladding.
reSAWN TIMBER co. recently returned to their Longport, NJ residence project to get a more complete understanding of how their SURETO shou sugi ban exterior siding and HAWAITO shou sugi ban exterior siding weathers in a real-world application. This material was specified by Philadelphia Design Co., known for high-end residential design. Materials were specified with a 5″ wide face and shiplap milling with a 1/8″ reveal. Installation is being done by Seashore Exteriors, a 4th generation company specializing in residential and commercial exteriors in the south NJ area.
Located in one of Philadelphia’s trendiest neighborhoods, this Shackamaxon Townhouse was designed to accommodate a newly retired couple who collects all kinds of art, including paintings, sculptures, pottery and more. Designed by Shila Scarlet Griffith of SG23 Design, this project utilizes KUJAKU shou sugi ban charred cypress for a unique accent wall that spans two floors.
Located on the Southeastern edge of Mascoma Lake, this modern shou sugi ban wood cabin is inspired by the New Hampshire Landscape. Designed by Kairos Shen, the Enfield project utilizes TORA shou sugi ban exterior siding, HADAKA shou sugi ban exterior siding, and clear vertical grain western red cedar.