Home Air Sealing in (VT) Vermont

We Cut Heating Costs in Vermont Homes Everyday

Building Energy puts a stop to drafts from chilling you in the winter and will get you incentives from Efficiency Vermont for doing it! Air sealing and insulating the “envelope” or “shell” of your home – its outer walls, ceiling, windows, doors, and floors – is often the most cost effective way to improve energy efficiency and comfort.

ENERGY STAR estimates that a knowledgeable homeowner or skilled contractor can save up to 20% on heating and cooling costs (or up to 10% on their total annual energy bill) by sealing and insulating.

The first step in making your home more comfortable and reducing your building’s carbon footprint is determining where the leaks are!

How we do it:

Many air leaks and drafts are easy to find because they are easy to feel – like those around windows and doors. But holes hidden in attics, basements, and crawlspaces are usually bigger problems. Sealing these leaks with caulk, spray foam, or weather stripping will have a great impact on improving your comfort and reducing utility bills.


Homeowners are often concerned about sealing their house too tightly; however, this is very unlikely in most older homes. A certain amount of fresh air is needed for good indoor air quality and there are specifications that set the minimum amount of fresh air needed for a house. If you are concerned about how tight your home is, hire a contractor, such as a Home Energy Rater, who can use diagnostic tools to measure your home’s actual leakage. If your home is too tight, a fresh air ventilation system may be recommended.


Most structures have air leaks that allow heat out and cold air to flow in. To fix these leaks, we pressurize a structure using a blower door. We are then able to use smoke sticks or a fogging device to identify and then seal the leaks. This is a particularly critical step in structures insulated with fiberglass.

Cellulose Insulation (Dense Pack ) in (VT) Vermont

Improve Your Home or Building’s Thermal Envelope with Dense Pack Cellulose Insulation

Dense pack cellulose stops air infiltration and offers excellent sound insulation.  Air infiltration is reduced as the dense pack provides an effective air barrier, slowing down and in some cases stopping the overall movement of air through the buildings envelope.  Studies have shown that up to 33% of a building’s air leakage, as measured with the blower door, can be eliminated using dense pack cellulose.

Carbon Conscious Insulation

Cellulose insulation is made from recycled newspaper and reconstituted wood pulp. The material is treated with Borate, a naturally occurring mineral compound which greatly increases fire, moisture, mold and vermin resistance. Properly installed, cellulose insulation creates a thermal barrier far superior to traditional fiberglass or other insulations.   Unlike most other installers, we are trained in the proper application of cellulose.

Cellulose Insulation Facts

  • 38% stronger sealing properties, as compared to fiberglass
  • 24% reduction in air infiltration
  • 22-55% greater fire resistance
  • superior moisture, vermin and mold resistance
  • Greater soundproofing and vibration-dampening

Spray Foam Insulation in (VT) Vermont

Insulate Your Home the Right Way

Spray foam insulation has the highest insulating value, with a value of R-7 for every inch applied. When applied, foam insulation expands to fills every nook and cranny. It provides an exceptional barrier to wind penetration and eliminates vermin and bugs entering the house. Because it expands into tight areas, sprayed foam is ideal for insulating steel framing and hard to get at areas like crawl spaces.

Carbon Concious

We use a non-toxic soy based foam. This is a safe, environmentally friendly foam with the highest R values and quality.

HEATLOK SOY®, a closed cell Spray Polyurethane Foam Insulation, has a unique ecological benefit that recycles plastic waste into a Rigid Spray Polyurethane Foam. This helps to more efficiently utilize the world’s non renewable resources. HEATLOK SOY® can reduce excess waste and energy consumption in buildings by up to 50%. This is an excellent closed-cell spray foam insulation/air-barrier used in areas where relative humidity levels exceed 55%.

Loose Fill Cellulose Insulation in (VT) Vermont

I just wanted to take a moment to tell you that your team did a great job insulating our attic. They wore shoe covers and vacuumed up each day. At the end, they pulled up all protective plastic and vacuumed their way out the front door.

They are also pleasant to talk to and courteous.

Thanks again for a great job!

Art Seoane, Williston

What’s in Your Attic?

Both loose fill and dense pack cellulose insulation are made from recycled wood based material and have a fire retardant.  Loose fill insulation is blown in to add insulation depth to areas such as attics, where the existing insulation is not sufficient. Made from recycled newsprint and other recycled paper, and treated with nontoxic fire retardants, cellulose insulation has been a tried and true method of insulating homes for decades. Its excellent sound insulating properties, its ability to provide an effective 1-hour fire rating, high R-value per inch, and industry leading environmental properties, makes cellulose a perfect choice for insulating attics and sidewalls.

Cellulose Insulation is one of the greenest products in the world. Cellulose insulation is made from recycled newsprint and other paper sources, paper that might otherwise end up in landfills, releasing greenhouse gases as it decomposed.

Green Facts

  • Cellulose takes less energy to make than any other insulation material. This is known as embodied energy and includes the total energy required to transport raw materials, manufacture and distribute the product. Fiberglass has up to 10 times more embodied energy than cellulose and foam products up to 64 times.
  • Cellulose has the highest level of recycled content in the insulation industry – up to 85%. Cellulose insulation is made with recycled paper, paper that might otherwise end up in a landfill. Fiberglass has a maximum of 40% recycled content and foam products little or none.
  • Cellulose insulation, by utilizing recycled paper, helps prevent the release of the greenhouse gas methane which would result if that same paper were sent to a landfill to decompose.
  • Cellulose insulation scrap is recovered and recycled on-site. Fiberglass and foam residue go to a landfill, and don’t decompose.
  • Cellulose insulation is regionally produced. Using local recycling programs and independent recyclers, and servicing communities close to home, brings new meaning to the slogan “Think Globally, Act Locally.”

Williston Passive Solar Home Case Study

A Vision for New Construction

The Williston Passive Solar Home was constructed by Building Energy for a family desiring a highly efficient home. It received a 5+ Star Rating from ENERGY STAR and was the most efficient home in Vermont that has been rated. It is a 3000 square foot home, complete with highly efficient insulation, energy recovery ventilation, ENERGY STAR appliances propane fired boiler, indirect hot water heater, and energy efficient lighting. The passive solar design incorporate overhang to shield the home from the sun in the summer. It’s energy rating is 90.8.

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Darrel Duffy – Wood boiler installation Monkton Case Study

Darrel Duffy

Ranch style house

Wood Boiler
“We installed our Tarm Solo Plus 40 back at the beginning of January and since then we have loved staying warm.”

“Prior to January 5th we heated our 2800 sq ft ranch with propane and had to keep the heat at 62 degrees during the day and 59 at night just to keep it affordable.”

“We now keep our heat at 66 to 68 during the day not because of cost but that is all the heat we can take, and 62 to 64 at night.  We even enjoy leaving a window open here and there just to get the fresh air and haven’t noticed that much of a change in wood usage.”

“It is the end of April and I have made it from January 5th to now and only used 5% of our propane tank.”

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Efficiency Electric Heating with Air Source Heat Pumps Case Study

Heat Pump Installation Saves $1,200 Annually in Waltham

Watch the video below to learn how Building Energy helped the Melnick’s in Waltham, Vermont save BIG ($1,200 annually to be exact). The Melnick’s realized that a heat pump was a good option for them after they had and energy audit done by one of Building Energy’s BPI certified building analysts. Once our expert team reduced their home’s heating load with insulation and weatherization they had a heat pump installed during the summer of 2013 and have been enjoying the comfort and savings of this great technology since!

Become energy independent when you combine a Cold Climate Heat Pump with Solar

Watch this WCAX news report from January 2016 to learn how Building Energy helped a South Burlington, Vermont family become more energy independent with the installation of a Cold Climate Heat Pump.


Bill Moller – Residential Solar PV Case Study

Residential Client
Bill Moller

Hinesburg, VT

A two-story house

Installation Date
July 2011

System Details
System Type: Utility Interactive Photovoltaic System without Batteries

Rated Capacity: 8.64 kilowatts

Modules: (36) SolarWorld SW240, 25-year power warranty

Inverter: SMA SB8000US, 8000-Watt Grid-tie inverter, 96% efficient

Racking: Unirac SolarMount with Ecofasten Flashing Plates

Predicted Savings
Expect to generate nearly 10,000 kilowatt-hours annually ($2,000 under SolarGMP)

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Solar PV Array, 8.64kW

Solar PV Array, 8.64kW

Solar Disconnect & Revenue Meter

Solar Disconnect & Revenue Meter

Solar Inverter, SMA SB8000US

Solar Inverter, SMA SB8000US

Roof Attachment witih Shingle Flashing Plate

Roof Attachment witih Shingle Flashing Plate

Leunigs Bistro – Commercial Solar PV Case Study

Leunigs Bistro


A four-Story historic building in Downtown District

Installation Date
December 2010

System Details
System Type: Utility Interactive PV System without Batteries

Rated Capacity: 26.4 kilowatts

Modules: (120) Sanyo HIT220, 20-year warranty

Inverters: (4) SMA SB7000US, 7000-Watt Each, Grid-tie Inverters

Racking on North Roof: Low-Profile Rack with Tilt Legs

Racking on South Roof: Flush-mount Rack with 12″ Stand-off Posts

Predicted Savings
Designed to produce 28,000 kilowatt-hours annually.


Our firm was contracted to design and install a solar photovoltaic system on the roof of this popular downtown restaurant.

The roof system needed significant structural improvements just to meet current building codes.

Our Approach

We assembled a team of engineers, designers and installers and we were able to put forth a plan that met or exceeded all applicable building codes and operated within the owner’s budget. The installation was completed on time.

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Installing Modules

Installing Modules

Installing new steel rafters to meet existing building codes

Installing new steel rafters to meet existing building codes

Navigating the decorations on Church Street in a 40-foot lift

Navigating the decorations on Church Street in a 40-foot lift

Solar Modules on North Roof

Solar Modules on North Roof

Solar Modules on South Roof

Solar Modules on South Roof

Got Questions

Contact us for more information on any product or service.1-802-859-3384 Or contact us through the website

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