On Earth Day, April 22 2009, Blackburn Architects launched Greenbarns®, a line of pre-designed barns for eco- and cost-conscious horse owners. Eight years later, with heightened global warming and environmental worries, the line is more popular than ever. Horse owners, we know, tend to be highly aware of and concerned for, the natural world.
John Blackburn’s mission for the past 35 years has been to deliver exceptional design through the creative blending of human need, horse need, environmental stewardship, science and art. When our studio created Greenbarns®, we did so to make healthy barns available to more of the country’s estimated two million horse owners. The barns are designed to operate without electrical or mechanical dependence and their roofs can be energy producing. “Imagine how much energy you could generate — not just save, but actually produce — if you equip millions of roofs with active solar panels,” John explained. “The energy can be sold back to the gird or stored and used on the property.”
Using energy-saving “passive design” elements, Greenbarns® rely on natural lighting and ventilation. Eco-friendly materials and finishes are paired with optional add-ons such as solar panels and greywater collection systems.
When a client in southern California asked us for a Greenbarn® suited to their small, two-acre property, we delivered a customized 3-stall barn that included a composting station and solar panels. The barn and paddock take up just 1/2 an acre and are located behind the owner’s existing home. Green materials include: light-colored roofing with a highly reflective finish, recycled content concrete blocks, low VOC stains/sealants, FSC certified wood products. Green systems include a manure composting station, and solar panels.
Blackburn Architects has formed partnerships with leaders in sustainable technology to connect our clients with the latest in composting, greywater and rainwater harvesting, solar power, and engineered bamboo products. Site planning, design modification, and design of other facilities such as storage buildings or residences are available as additional services in conjunction with the Greenbarn® line.
Midwesterner, architectural designer (almost ready to pass her final exam), and so much more. Let’s get rolling. Where are you from?
Vanderbosch is Dutch, meaning “of the woods.” I grew up in Fort Wayne, IN where my Dad’s side of the family is from and where my Mom moved after college. Her family is from southern Indiana and western Kentucky. Did you know there’s an actual fort there? Not many people do. It’s named after Revolutionary War General “Mad” Anthony Wayne. It’s a small city that feels like a small town. Folks from Ft. Wayne are Midwesterners through and through, very friendly, and I love it there.
What was it about growing up in Ft. Wayne that made you think, “I want to be an architect?”
I guess that does go along with growing up in the Midwest, where’s there’s lots of land and doing projects is very easy. My family was very involved with making home improvements. We were always working on projects: the bathroom, retiling the kitchen, putting in a patio in the backyard. Meticulous work. It’s probably related that my siblings and I have chosen detail-driven professions. I have three brothers, the oldest, Joey, is a dentist, Scott, is in food chemistry and my youngest brother, Mark, is studying to be an accountant and will go to grad school this fall to get his MBA.
In 8th grade I discovered architecture. A teacher assigned a book report, I think it was on the topic of biographies, and brought in all different books of famous people and I picked up the one on Frank Lloyd Wright. It had beautiful pictures of Frank Lloyd Wright houses. Until then I knew interior designer was a thing, and DIY, but I didn’t know architecture was a job. That you could do that for a living. I remember thinking, ‘That looks really cool; that’s what I want to do.’ I like being creative and putting things together to see how they work, which led me to interior design. But in class I’d ask, “can I move these walls?” and the answer was “no, the architect will do that.” That’s when I knew I wanted to be an architect. I could always do interior design as an architect, but I couldn’t go the other way.
I started at Purdue in interior design, then transferred to Syracuse University for architecture. Syracuse was intense, but the school has an amazing study abroad program. That’s what sold me on the school. I lived in London and Florence. It was a once-in-a-lifetime thing that I’m so glad I did.
I moved to DC for a job in 2012. At the time (during the recession), it was about finding a job. Any job. Ultimately, I got hired by a firm in Georgetown, which then downsized like so many at the time.
Luckily, shortly thereafter, you found Blackburn.
There came a time during the recession when I was trying to decide, ‘Do I stay in DC? do I move to Chicago? go back to Ft. Wayne?’ So many architects were unemployed. I sent my resume everywhere, including Blackburn Architects. When I came in for the interview, I remember that (now-fellow Project Manager) Cesar Lujan and John Blackburn were interested in me, my portfolio, asking questions, and I was so impressed. Turns out that early experience was very indicative of the supportive culture of the firm. To this day, my favorite things about working here include the personal interest, the flexible and supportive studio environment.
Describe your passions outside of work?
Good question. I like to do lots of things. I enjoy biking, and I bike to work unless it’s raining or below 40 degrees. It’s about 4 miles; all downhill cruise in the morning, and then all uphill home. Jenni Blackburn calls me “the little Dutch girl” because I have a little egg crate basket on the back of my bike and sometimes carry baguettes in there.
And photography. Mostly nature. My mom printed large scale pictures I took in the Adirondacks at Kinko’s, framed them and hung them up. Now my brother, who lives in Indianapolis, has them in his house. That stuff is fun. I go for views – it plays into architecture when a client says, ‘I want a view out my bedroom window.’ I like shooting landscapes that show the client what they’ll see in the future, especially wide-angle panoramas. I took some for a current client, and it was cool to see the progression as I’ve returned to the site over the seasons. We were there in the early summer for the first time, and everything was very green. And then we were there in the fall, so there were some leaves, but it was mostly bare; getting close to winter. The most recent visit was just a couple of weeks ago, and it’s spring. I’ve loved seeing how the site has changed over the year.
I know you sometimes travel with John Blackburn to visit project sites. Let’s end with a favorite JAB story?
Taking him “home” (to Ft. Wayne this past winter) for a project was a first. It was interesting, driving him around and pointing out ‘oh, that’s where I learned to play tennis, and that’s the kennel where my Mom got our Miniature Schnauzer, Sunny; where to go for dinner? Well Casa is right here and delicious.’ I think it was a lot bigger city than he was expecting. It’s not every day you can show John someplace he hasn’t seen before. He told me that when he was a boy, in Tennessee, he only got a couple of radio stations, and late at night, he would listen to Ft. Wayne AM radio. 1190 WOWO. They had the biggest antenna that broadcast the farthest, and he could listen to it. How’s that for random?
I’d say it’s high time for a salute to Ft. Wayne, IN! Thanks for bringing us the very talented Carol Vanderbosch, who is currently at work on a Net Zero Energy barn and Indoor Arena located somewhere in the Midwest, at a facility that offers inspiring year-round views.
As a child until the age of 3 or 4, I lived in Bethlehem, PA. I don’t have a lot of memories of it, but my dad tells the story of when he and my uncle built the deck on our house, and I, at age 3, stood outside with my arms crossed and pointed at things, giving direction. They thought it was hysterical. Dad always tells that story when people ask why I became an architect. If it was a job where, “you were going to stand around and tell someone how to building something, Matt was going to be good at it.”
Eventually, we moved to the Philadelphia suburbs and that’s where I lived until college. It looked like a generic suburban development in what had once been a farming area. There were a lot of kids my same age, and a big yard to play in. Behind our house was this old barn. I never made the connection until after I started working at Blackburn, but the farmer who owned it was friendly to the neighborhood kids, and we used to go exploring through that barn all the time. As we got to be teenagers and we built skateboarding ramps or hockey nets or whatever, he let us dig stuff out of the barn and use it. It was a beautiful old building because it was all mortise-and-tenon construction. There were no nails. I’m sure that was an early influence on my love for old timber structures. Good memories. For a few years, he kept retired racehorses, and they seemed to enjoy eating our garden over the fence.
How did Clemson happen?
I completed my undergraduate study in DC at Catholic University, graduating in May, 2010. Afterwards, I moved back to Philadelphia for about four months – the job market was tough – and worked part-time. In my spare time, I helped my friend Dan – who we’ll probably talk about when we get to family – renovate a house. It was a chance to apply some of what I had been learning in school. We made a mess; we probably did some things terribly wrong, but it was fun.
Then I came back to DC, worked for John for four years, and as I started to take on more responsibility I felt that it was time to get my Master’s degree because I was certain this was what I wanted to do. I looked for a school that was somewhere different and was certain that I would go to school in Chicago, until I visited Clemson and found it… unique. Perhaps because it was kind of rural. I had gotten used to city life, I think, and the small college town felt like a setting where I could focus academically. Also, Clemson offered two semesters off campus (I chose to visit Barcelona and Charleston), which were additional learning contexts; again, something different.
In addition to your Master’s degree, you met your fiancé at Clemson.
Jenny and I met the first day. At orientation, I met a few people in my program, one of whom was Jenny’s roommate. Jenny walked up beside me and we just clicked. I texted my friend Dan that day and kind of as a joke told him I’d fallen in love. Jenny and I have been together ever since, and will get married this summer. She grew up in Mississippi and comes across as a sweet, soft-spoken person, but when she gets wound up, watch out. We fit together well.
Let’s talk about how family plays such a big part in your life. You’re a very together person, so that must come from your upbringing.
Totally unbiased, my family is very special. I have two brothers, Mark and Shane, plus Dan, so that’s really three brothers. One sister, Megan. And now I have Jenny, and her family, joining mine. Family has always been a constant through my life. It’s not always been simple. As with all families, there’s some complexity to it, but my siblings and I are very close. Doesn’t mean we always agree; we certainly fought a lot growing up, but we are inseparable, and super weird, when do get together. When we’re around each other, we can be a bit overwhelming. Each of us is uniquely humorous and witty, and sometimes too clever for their own good. As for having it together, a lot of that is on my mom and dad. When I turned 14 I was told to find a job, so I started working in a restaurant. I give my mom and dad a ton of credit for pushing me. Early on I learned to balance friends, life and work. I’ve tried to maintain that ever since.
And the unique studio of Blackburn Architects fits your work life?
John has allowed me to take on a lot of responsibility. That’s huge, and particularly relevant to why I came back this past summer after finishing at Clemson. It’s tough to give an impression to someone in half an hour or an hour, but in job interviews I felt like other architecture firms didn’t get a full picture of who I was. They were just trying to fill a seat. Here, I’m encouraged to try things. I’ve been allowed to fail. Maybe not fail, but make some mistakes so that I can improve. It’s how I’m learning and growing professionally. John, and Ian, challenge the way I do things, and encourage me to defend my view. When there’s that level of mutual respect, you really feel motivated when you come into work each day.
As a young architect, do you worry about the future of the profession?
Sadly, architects in the media are often portrayed as having a kind of elitism. It’s a shame, and not true to what I’ve found in the profession. I know that small interventions can happen at an affordable price that can do a lot for quality of life. On the positive side, there’s so much information available and so many things we can now do, that, coupled with the ambition of young architects, suggests an exciting future. Growing out of our educational backgrounds that expose us to some of the more complex social and cultural challenges of our world, young professionals are finding new ways to innovate. Sustainable practice models are one example. You can also start to look at what it means to build sustainably, beginning with our post-war, and even more recent, building stock and how you can repurpose these buildings to avoid throwing the material in a landfill. Simply using green materials in a new building misses the bigger picture. We aren’t there yet, but these societal challenges inspire me.
Sports buff? Leave us with one nugget of a passion for something that’s not architecture.
I’ll give you two. Sports are one, specifically soccer. Jenny and I have a friendly rivalry. We play on the same rec team, but we follow rival pro clubs. It makes the house kind of fun on matchdays. Locally, we’re big fans of DC United. It’s an experience to go be a part of a fan group at the games; you cheer and jump up and down and act ridiculous.
The other passion is cycling. I bike to work every day, rain or shine. It gets me going in the morning. After 20 minutes of riding through the city I’m awake and ready to go.
Lastly, let’s talk LEGO, because we must.
Yep, I still play with LEGOs. There’s a Lego model of one of our Greenbarns on my desk that I threw together one day. I would like to think that 12-year-old Matt would be proud that I haven’t lost the love for playful exploration that drives me.
They’re rustic, lofty, and tug at the hearts of people searching for a simpler way of life. Supported by a sturdy skeleton of timber and a base of stone nestled into the land, the appeal of living in a barn is seemingly timeless. These structures effortlessly fit into the landscape, whether in Pennsylvania, Ohio, or Europe.
For many years now, we at Blackburn Architects have watched the popularity of using these simple structures grow in popularity for secondary uses. There are tens of thousands of articles and project profiles about converting old barns into residences, guest houses, schools, breweries and wedding venues. We love the “reuse, reduce, recycle” of these historic structures rather than demolishing them (sending the material to a landfill) and building a bigger footprint in their place.
There’s even a How to Guide (aptly titled, How to Take One Old Barn and Call it Home) from the team at This Old House. Converting an old barn into a new home isn’t a task for the faint of heart, but big things can yield even bigger rewards. The article touches on common issues you’ll face: structural (is it safe? how’s the foundation?), is it energy-efficient (you can bet it’s not — yet!) and water sealed (again — no way, no how), the pluses and minuses of such a large, open space, and more. The challenge is often finding a way to adapt it to a new use without loosing the character of the old barn but also doing it in a way that is sympathetic to its original function. When all is said and done, it needs to still look like a barn.
Our conversion of an old barn in Ohio into a guesthouse/party barn has been wildly popular on Pinterest and Houzz. The conversion of the bank barn into a spacious new home involved stabilizing the dilapidated structure and picking it up (literally) to move to a different location on the site. Our goal was to salvage the beauty of the barn and retain its character and charm. We reused lumber where possible and play with a mix of traditional details and modern amenities.
You can find photos of the project here: http://blackburnarch.com/projects/ohio-party-barn/In the meantime, how about some inspiration for your own conversion project? Here’s just a sample of what we’ve found lately. If you stumble upon a great adaptive reuse project (whether it’s a barn, an old warehouse, a church), let us know. We always relish these challenges.
Might seem unlikely, but the designers at Blackburn Architects care about pastures. We think about them a lot.
For instance, did you know that now’s the time to sample your pastures for soil fertility? Early spring and fall are the best times to take these samples, according to the University of Kentucky College of Agriculture, Food and Environment, which released the article, linked below, last week. The article recommends sampling the top four inches of the pasture, and dividing large pastures into “sub-pastures” for sampling based on the varying topography.
“I Recommend that any horse owner in the United States contact their local Soil Conservation District (SDC) for advice in their specific area,” said John Blackburn, Senior Principal at Blackburn Architects in Washington, DC. “SCD’s are one of the best services provided by the Federal Government to farmers and in most cases the services they provide are free. Some pay you for installing and pursuing Best Management Practices. By definition, Conservation Districts are “government entities that provide technical assistance and tools to manage and protect land and water resources in the United States. There are more than 3,000 in the United States. Depending on the state, they may also be known as soil and water conservation districts, soil conservation districts, resource conservation districts, or other similar names. Nationally and within each state, the districts are generally coordinated by non-governmental associations. District borders often coincide with county borders.”
From concerns such as pasture maintenance to siting roads and structures on a property, many people contact us who are unsure of when and how to begin working with an architect. Teaming with a property owner to master plan their site, either for the first time (no structures on a blank canvas) or “redefining” an existing property (which may not be planned for best use practices), is part of the first phase of work performed by Blackburn Architects. With an equestrian architect, you’re purchasing a service rather than a product. The architect is there to resolve the needs of the owner, from overall site planning, programming, phasing, and design to overseeing the entire construction to make sure the barn is built as intended.
Typical services we provide include:
- Pre-purchase planning. Prior to purchasing a farm, we work with clients to “test fit” the property against their program needs and to look for possible siting or property issues (wetlands, environmental restrictions, siting grading concerns, code issues, sufficient acreage, etc.)
- Site planning: can reduce infrastructure costs (fewer roads, less fencing, better drainage, etc.) and improve the site to function at its best for your needs.
- Programming: ensures that the whole farm (not just the horse barn but the entire collection of structures on the site, if applicable: residence, guest house, caretaker’s quarters, hay/bedding, vehicle storage, etc.) operates efficiently and safely.
- Code analysis: certainly the codes vary across states/municipalities. We’ve designed horse stables in counties with very specific codes and regulations and understand what to look for and how to work with the various officials to resolve issues. The architect can save you a lot of hassle!
- Budget Development and Cost Control/Scheduling: I like to develop a budget as early in the process as possible and revisit it periodically during the project. My job is to determine if the owner’s programmatic needs and budget fit the site, and if the design aesthetic suits their personal design goals. We can also plan to develop the barn or various structures in phases, if applicable.
- Conceptual Design: Here we develop the character and massing of the structure(s) and prepare a preliminary floor plan and elevations to illustrate our ideas. At Blackburn, this is the final phase of what we call Master Plan Services (site plan, written program, conceptual design, and preliminary construction development). From here, we move on to more detailed design work.
- Schematic Design: After we complete a master plan that works well for the owner, we begin to prepare detailed drawings to give you an idea of the layout and general appearance of the barn (and possibly other buildings). We’ll talk about finishes, materials, stalls, tack rooms, etc. For a lot of people, this phase of design is the fun part!
- Design Development and Construction Drawings: Here we’ll really start to nail down the final design and specify the materials, stall systems, finishes, and other details and prepare construction drawings that instruct the contractor how to build the barn.
- Bidding and Construction Administration: Because construction drawings are open to interpretation, it’s important that the architect works with the contractor to oversee that the project is carried out according to the design intent. We’re the owner’s rep to make sure that construction is done well and done right.
Each step in the process leads to a healthy, safe, and functional facility. As architects, we want to study how you operate and design a barn that feels inviting and personal (because it is). No barn or farm operates exactly alike as each owner or barn/farm manager operates his/her facility in a particular fashion. While designing a barn from scratch is not realistic for everyone, if you are choosing between a design/build firm and an equestrian architect, we would strongly advise that you approach both for more information and weigh out your options carefully. It could save you your horse.
As always, we invite your questions and comments.
Q: We’re renovating our fireplace, and want to incorporate the exposed fireplace flue shown in your German bank barn renovation. Where do you get the pipe for it?
Dear Barn Enthusiast,
Congrats on your barn conversion! We love breathing new life into these wonderful structures. To answer your question about the flue we used, It’s a galvanized steel flue, 12”-14” in diameter, and came in about 4 foot sections. It should be pretty easy to find. Stainless steel is another good recommendation and look. Galvanized is a little less expensive, but a little more rustic.
Hope that helps! Good luck with your project.
Q: Do you have any advice about a design for a canted ring liner? Or even just describe what is the norm? We need an idea of how a segment typically is built.
Is it a good idea to go on up vertically after the canted part, another couple feet, to get a better compromise between indoor and covered only?? Or would that be claustrophobic? We plan to use gale shields (netting panels) to cover the openings/protect from rain and wind.
Northwestern Eventing Rider
A: Dear Northwestern Eventing Rider:
I’m not sure what you mean by “ring liner.” Do you mean the kick wall?
There are a variety of ways a kick wall can be designed. I typically design it to the height the owner requests (typically around 4 to 6 feet). We kick the base of the wall out about a foot from the top so it is slanted to protect the rider’s leg.
The top of the kick wall can go to whatever height you feel comfortable but I would make sure if you are using a steel frame for your arena roof and the interior face of the steel column slopes inward, that you allow some extra space between the top of the kick wall and the front edge of the column so that the rider’s shoulder or head doesn’t come in contact with the column.
I suggest extending the kick wall into the footing to the gravel base. Remember, the bottom boards and the framing behind the kick wall should be constructed of treated wood wherever it comes in contact with the ground or grade. In most cases the frame is constructed of pressure-treated lumber and the bottom boards are pressure-treated to a point about 18” above the footing surface.
Also, I suggest putting gravel in back of the kick wall to the height of the arena footing to prevent the footing from being driven over time under the kick wall by the pounding of horse hooves.
I hope this is helpful.
John Blackburn answers your questions about barn design.
Q: Dear John,
Long ago you were kind enough to give me a bit of advice about planning a barn. We got started last spring, but were waylaid by an evil contractor who put the barn in the setback, with poles only 18″ in the ground, and a drainage system two feet too high to catch any water. On top of that, he dumped 130 truckloads of bad, unnecessary fill, and built a retention pond that is 36% too small – UGH! Luckily it was all easily documented by the project’s engineer so we are able to recoup a little of the money laid out.
So: moving along, we deconstructed the barn, redid all the drainage, and turned to a pre-fab barn.
The new building is a 60×120 raised center aisle structure. I requested open sidelights and a ridge vent to help keep airflow going in the soggy, humid climate in the northwestern US. The stalls almost always will be open to an 8ft shed eave and attached paddock. Their fronts are composed of lots of steel mesh — so lots of air.
I’m NOW STUCK. I feel quite stuck because no one around here understands your way of doing things. I’m trying to incorporate what I learned over the years from your publications.
Please help with my roofing situation:
The roofing is 26g boxed rib metal panels. I requested polycarbonate panels be incorporated for natural light. The question is whether it’s unwise to let the whole raised center be polycarbonate, or go with only one light panel per 12ft section–and whether it’s crazy to use clear vs opaque white panels. (Most weeks out of the year it is damp and grey and cold here.) The barn company is in hot California so they think the whole idea is nuts.
If moved to offer an opinion, please know I’m already grateful.
Northwest Endurance Rider
A: Dear Northwest Endurance Rider,
I understand why you resorted to prefab because you’ve been thru a nightmare. However, prefab barns can be hot boxes in the summer, and don’t always provide adequate controls for natural light and ventilation. Pre-designed, pre-engineered buildings are typically designed the same for all areas of the country and no two areas of the country are alike nor are the sites. Environmental and weather conditions can differ dramatically so a prefab building designed to fit all sites just does not work best for the health and safety of stabling for horses. But I understand. You’ve selected the barn you want, now my advice is you should provide for as many options as you can for control of natural light and ventilation.
You mentioned a 60 ft x 120 ft raised center aisle structure. How many rows of stalls are there in the barn? The best arrangement is to have one center aisle and a row of stalls along each side of the barn. The 60 ft width sounds like there are two main aisles with rows of stalls on both sides of each aisle. That would mean two of the rows of stalls are back to back and not on the exterior where they get adequate ventilation and natural lighting.
The 8 ft shed eave is too low in my opinion. I use 12 ft as a minimum though 10 ft may work for smaller horses and if there are no obstructions below the roof. However, there are usually lights, fans, beams, etc. that drop down and they can be a danger to horses.
I like the use of translucent polycarbonate panels. Translucent, not clear, as it breaks up the light and hides the dirt that accumulates on the skylight over time. Providing polycarbonate across the center aisle sounds nice, but I’m unsure how it will look on the barn design you selected. If you’re putting a skylight over the raised center aisle roof, what is on the face of the raised center portion? There is usually some sort of glazing or louver for venting. It will be important that these elements complement one another. Thanks for the question and I hope this is helpful.
In case you missed it… Studio Appalachia is a collaborative, project-based graduate design studio between Clemson’s school of architecture and its department of landscape architecture. The Studio is directed by associate professors Dan Harding and Paul Russell. Studio Appalachia targets issues such as: accessibility to natural resources, sustainable building strategies, and approaches to long term visioning and planning.
I was asked to participate in this year’s studio because it involved horse facilities, specifically re-envisioning the Clemson University Equine Center (CUEC). With aging facilities that are well-used and well-loved, I knew it would be fascinating to see how these talented students created a fresh program for the facility. The teams of architecture and equine business students (a new twist for the studio) have spent the last several weeks immersed in detailing the site and facility requirements, learning about design issues unique to equines.
Teams consisting of three to four students conducted rigorous research, made several site visits, interviewed user groups, studied topography, considered land, sun, wind, circulation paths and traffic flow to create detailed and well considered Master Plan Studies and Field Reports.
Referencing the evolving formal and material contexts of Southern Appalachia, the four teams stated as goals to “improve circulation, establish organization, and enhance the (existing) ecology of the historic Clemson farm. To them, as one team eloquently stated, the CUEC is more than a farm; it is an institution that showcases the prestige of the university, and embodies the history, strength, and energy that the equine program was founded on.
The preliminary master plan schemes presented earlier in October were successful in developing goals and considerations for further study. The studio presents preliminary concept designs later this week and I’m looking forward to the big reveal.
Coming off the heels of a truly epic storm for the Washington D.C. area (and most of the east coast!), I thought I’d take a moment to address how design techniques can help barns “weather” extremes.
In the United States, the upper northeast regions through to the Midwest are prone to experience weather extremes in the form of snow and ice. While we cannot entirely “weather proof” a barn, we can make it more resilient to some of the more damaging effects of weather phenomena.
The roof of your barn needs to be able to:
- Withstand the weight of snow and/or effectively shed it
- Prevent or reduce the formation of ice dams
- Redirect “roof avalanches” from sliding into high traffic or poor drainage areas and also reduce associated noise that could frighten the horses.
In addition to contributing to the Bernoulli principle I incorporate for natural ventilation, steeply pitched roofs also contribute to effective, gradual roof shedding and the redistribution of snow load. Ideally the pitch should be between 4/12 and 6/12 to get the optimal shedding effect (although, we generally try to keep pitches at 7/12 or more to take full advantage of the Chimney Effect and Bernoulli principle for natural ventilation)
Roofing material will also factor into how the snow will shed. Metal roofs are excellent as they are smooth and slick. They will also stay colder longer; reducing the likelihood that snow will melt and form ice dams (more on this below). Snow will shed from a metal roof even if the pitch is lower. Shingled roofs, however, will slow down the shedding process by “holding on” to the snow and allowing it to stay in place and accumulate. Consider a steeper pitch if you prefer a shingled roof as it will facilitate the shedding process over the rougher material.
Now, you might be saying to yourself, “Well, the snow is off the roof…but it’s all over the place! Now what?” Including strategic roof overhangs will complement the steeper pitch by helping to distribute shedding snow away from exterior walls and out of traffic and poor drainage areas. Be wary though, snow sliding off roofs can be noisy and frightening to horses, not to mention dangerous if it falls on you! Snow guards on the roof can help reduce the noise associated with shedding snow and keep huge sheets of it from falling on (and potentially harming) 2 and 4 legged passersby. Gabled dormers over entryways can also be useful. They help to direct snow off to the sides.
Ice dams are another unfortunate side effect of snow-laden roofs. An ice dam forms when the underside of the roof gets warm enough to thaw the bottom layer of snow sitting on the other side. The water makes its way down to the eave where it refreezes, eventually growing into a mound of ice. As the ice dam gets larger, it can pull the shingles and edges up allowing water to get through and into the insulation and walls. Water damage then wreaks havoc on the interior of the barn. The ice dam could also break off the eave and take pieces of the roof with it or fall on passersby. Sure, there are ways to deal with ice dams once they’ve formed, but natural ventilation can help prevent them upfront. Natural ventilation keeps the underside of the roof within 10 degrees of the outside temperature, which aides in keeping that critical layer of snow right on top from thawing and running down towards the eaves.
Site and circulation planning can help prevent and/or reduce the impact of icy conditions around equine walkways. In the interest of horse safety, I try to design site circulation so that horses do not need to move over asphalted areas intended for trucks and service vehicles (there are other benefits associated with that as well). Asphalt is not great for horse’s knees, generally, but it is particularly problematic when wintery conditions lead to the formation of “black ice” — a thin sheet of ice over the asphalt that can be imperceptible to the horse or persons walking on to it. Horse pathways in and around the barn should include porous footing that absorbs and carries moisture away quickly. Presently there is no way (that I know of) to prevent pastures from freezing over, but you can maintain a dry paddock or “sacrifice” lot where your horses can be turned out when pastures have been effected by inclement weather. Paddocks with considerable slope can be particularly hazardous when they freeze over. That’s when a “level” dry lot can be very useful!
As many on the east coast found out this past week, there is only so much preparation you can do in a couple of days before a storm hits. You, your horses, and your barn will benefit from built in preparation.