Building Science

March 12, 2021

With the Common Ground Fair going full digital force this weekend, we wanted to introduce you to one of BrightBuilt Home's builders who also just so happens to be an organic farmer! Meet John Roscoe, of Roscoe Builders, who is based in Sullivan, Maine, where he splits his time between construction zones on MDI and the farmstead on the mainland. I mean.... can we have baby goats on ALL of our job sites, please? Check out what John has to say…

September 25, 2020

Meet the owner of Maker Construction, Ryan MacEachern (top photo), and his crew. They're the team of individuals that take a module off of it's flatbed and set it securely on to a foundation. More than that, they are a bit nerdy and they pay attention to the details; they know how important that air barrier is and ensure that the house is fully "buttoned up" at the end of a set day. Their work is a key component in making modular happen; they work swiftly and with ease, but their job of securing 30,000 lbs while it hangs in the air (among many other things) is anything but easy. It takes talent, planning, and attention to detail. They have recently set a BrightBuilt Drisko, Perkins, Cushing, and 2 Frenchboros. We thought we'd throw a few questions Ryan's way, so that you can get a taste for the team behind this part of the process.

August 14, 2020

Meet Colin Lindberg, builder of our most recent Jewell. He is owner of Shelterwood Construction, a general contractor out of Moretown, Vermont. He and his team completed this Jewell in 2018. Colin was gracious enough to answer our burning questions, and show off his fun-loving and hard working ethos, for all to enjoy.

July 2, 2020

The air exchange system: The system in our homes that perhaps remains the biggest mystery to new homeowners. We throw the acronyms ERV and HRV around as though they're as universally understood as PB&J or LOL, but to many, the notion of active, pre-filtered fresh air exchange in your home is at odds with most homeowners' experience with the drafty New England farmhouse (which our homes, of course, are not). To help shed some light on what these systems are and what they do, we tapped local expert, Kurt Johnson, of Fresh Air Ventilation in Lewiston, Maine. He offers some great insights, tips, and clear explanations on these critical systems.

April 24, 2020

High-performance homes are not only energy efficient, they also allow for "rooms to breathe" When someone says “air pollution,” is the picture that comes to mind cars spewing exhaust? Maybe smoke billowing out of a factory? Or is it smog hanging above a city? In all of these scenarios, the air pollution is outside, but recently more research has been done to understand what air pollution looks like inside. And it doesn’t look good.

May 17, 2019

Imagine a world where you can heat (and cool) your home without a “furnace”. Seems too good to be true, right? It’s not! There is a huge list of systems to choose from when it comes to heating your home. When you start to consider the various factors such as heating requirements, cost, and energy efficiency, we understand why you may feel overwhelmed by these decisions. To make any educated decision about something as important as your home, it should be well researched. Getting it wrong can cost a lot of money and cause headaches. We are here to share our knowledge and help inform your decisions towards heating your home furnace- and fossil fuel-free with an air source heat pump.

A few weeks ago, we discussed indoor air quality in high performance homes in our blog post, Breathe In, Breathe Out. We identified many of the indoor air pollutants that are prevalent in our homes, and now we want to address one of the most common (but very preventable) pollutants of them all: Cooking!

The humble light bulb has come a long way since its invention. Modern bulbs are designed to consume considerably less energy while producing the same amount of light and lasting substantially longer. Recent improvements in light quality and the ability to dim have made non-incandescent bulbs a viable option in virtually any setting. Energy efficient alternatives to traditional incandescent bulbs include compact fluorescent (CFL) and light-emitting diode (LED) light bulbs. They might come with a slightly higher price tag in the immediate future, but they can last for years and will help you save significantly on utility costs.

Looking to find a replacement fridge, or outfitting an entirely new Kitchen? Make sure you take a closer look at the energy consumption of any appliances you're aiming to purchase. It will save you on your bottom line, and will keep those treasured plug loads low to keep your solar array cranking into net-positivity.

If you're currently suffering from the heat and humidity outside, like us, then you'll understand just how important the systems are in your home. We often focus on how warm our homes can be during a frigid New England winter, but did you know that they function just as well in summer? A BrightBuilt Home keeps you cool and free from the oppressive humidity!

Good design and construction will help you improve efficiency by limiting the amount of heat that can transfer through the exterior, but a good green home also takes usage into consideration. Your home has a long life span. Start it off right with sustainable systems and materials that enable you to keep your environmental footprint small while still living comfortably in the modern world.

Good design and construction will help you improve efficiency by limiting the amount of heat that can transfer through the exterior, but a good green home also takes usage into consideration. Your home has a long life span. Start it off right with sustainable systems and materials that enable you to keep your environmental footprint small while still living comfortably in the modern world.

A thermal break is a building element that limits the flow of heat between materials. Think about your morning cup of coffee. If the paper cup is too hot, you put a sleeve on it so you don’t burn your hand. That sleeve is a thermal break. However, the base of the cup and the open top are still allowing heat to escape.

Increasingly, wall and roof thickness to accommodate additional insulation plays a major role in limiting heat transfer. A green home with a roof and walls that are thicker than a conventional home has better thermal comfort because less heat is allowed to escape in winter. You also get the bonus of having a much quieter home since thick, insulation-filled walls and roof filter out more sound from the outside.

You already know that one of the major challenges when building a green home in New England is heat loss in winter, but there is less concern about heat gain in summer. One of the reasons for this is the difference between standard comfort levels and the outside air temperature. When you consider that 65° to 72° is comfortable for most people, a hot summer day is only a 20° to 25° difference. On the other hand, a cold winter day might range from a 35° to 80°+ difference in temperature. That’s quite a leap to get from the outside air temperature to your indoor comfort level, and any lost heat will require more energy to maintain the desired temperature.

While paying close attention to the shape and volume of your new high-performance home, it's also important to pay attention to the holes you punch through its shell. The openings in a home are yet another chance for air to escape or enter. On a clear spring day you want your open windows to bring in fresh air, but on a cold winter day you want as little heat as possible to escape your cozy home. Even the best window is not as energy efficient as the minimum standard wall. Windows and doors are the primary source of both heat loss and gain in a home.

Last week we took a look at the how the number of surfaces (different planes, an abundance of corners, etc.) can impact a home's performance. In addition to the number of surfaces, the surface area-to-volume ratio is also an important consideration when building a green home. The more surface area a home has (the total area of the exterior walls, roof, and floors), the more opportunity there is for heat to escape or enter. Likewise, the higher the ratio, the greater the risk of loss.

If you are building a custom home, you have the freedom to implement the design features that suit your aesthetic and optimize the natural characteristics of the site in order to develop a structure that meets your needs while respecting the environment at the same time.

Building a green home requires considering more than just the structure itself. Even the greenest home couldn’t be reasonably considered sustainable if you had to cut down an entire forest to build it and then covered half the site in an impervious parking area. This is an extreme example, but how much you need to disturb the site is a factor that must be weighed if your goal is to minimize your environmental impact.

Ensuring proper rainwater drainage on the site is critical for the longterm durability of your home. If water is allowed to flow into the house, you might face problems like damage to surfaces, hidden moisture in your walls, and eventually, mold growth. Of course, quality construction also plays a role in durability, but good drainage is the first step in avoiding these problems. Some of the factors that will play a role in drainage on a building site include:

Most homes do not sit on top of a barren hill without any surrounding landscape features. In reality, most sites are surrounded by buildings, mountains, trees, or other features that create shade. Where your home is positioned on the site and how it is oriented will impact how much sun reaches the house at different times throughout the year.

You’re building a new home. You don’t want to just plop it down anywhere on your property. You want to put it in the place that provides the best scenic view, looks the most appealing as you approach, and hopefully has the smallest environmental impact. Deciding on the orientation of the building requires taking all of these factors, and more, into consideration.

Good design and construction will help you improve efficiency by limiting the amount of heat that can transfer through the exterior, but a good green home also takes usage into consideration. Your home has a long life span. Start it off right with sustainable systems and materials that enable you to keep your environmental footprint small while still living comfortably in the modern world.

Many people depend on having predictable monthly expenses as part of a household budget. The more you can decrease those expenses, the more money you’ll have to save, invest, and enjoy. Many people also make the assumption that a green home costs more, but the truth is, building a new green home can actually help you reduce your monthly expenses.

No matter how charming or attractive a home is, if it doesn’t feel warm in winter, it’s not doing its job. If you have to wear extra layers inside or can’t read a book in the window seat because the draft is too cold, you’re not receiving the full benefits of your home.

The term “air quality” often conjures up images of smog-filled cities, but it is actually the air in your home that presents the greatest risk to your health. Let’s explore some of the most common obstacles to breathing clean air when indoors and how building a green home can help you overcome them.

A solar powered trifecta, Tesla Roof Panels, a BrightBuilt Home and an electric car!

Your first question may well be, "Well, what are ASHPs?!?" For that, we've got you covered. ASHP is short-hand for Air Source Heat Pump. It's the technology we use and love, because it's such an efficient way to heat and cool a home (particularly those great homes that have well-built exterior shells and thoughtful, pre-filtered air exchange!).