GREEN BUILDING

Integrated High Performance Design

The term “green building” is also known as “green construction” and “sustainable building.” NuVision Builders prefers another term “High Performance Building.” A whole house system approach to design and construction of green building is superior to conventional built homes offering a few green techniques or a few green materials.

An integrated green building design by NuVision Builders offers the new home buyer far more green construction advantages. For example, an onsite design team specializes in the design of homes with low energy demand, strong storm and moisture resistance, low maintenance, and healthy indoor air quality. A high performance sustainable building design can result in a reduction of annual insurance premium payments and higher resale property values as compared to conventional built homes.

Whole House System

The Building Envelope

Important design features during construction of a high performance home is the exterior envelope. At NuVision Builders, a properly designed exterior envelope for a green building consists of a a steel-reinforced structural foundation connected to a monolithic, steel-in-place, solid concrete wall system, low-energy efficient windows and doors, and advanced roof system. Controlling the environment inside requires a tight and enduring exterior envelope. New home buyers agree, NuVision Builders a strong and sustainable building.

Insulating and sealing a tight shell reduces the loss of air and heat from inside the green building. A proper design method means the home buyer can reduce heating and cooling cycles, reduce the size of the HVAC systems, extend HVAC durability, increase energy efficiency at less expense, control excessive moisture, and improve overall air quality inside the green building.

NuVision Builders also offers solid soffits and solid eaves. The design team utilizes engineered roof trusses which are substantially tighter by applying high-density, spray adhesive foam insulation. Moreover, all windows and doors are insulated, contain dual-paned glass with aluminum frames. The green building NuVision Builders constructs is very strong and virtually air-tight throughout the exterior envelope.

High-Density Adhesive Spray Foam Insulation

There are many types of spray foam insulation. Spray foam insulation is a superior insulation compared to conventional batt and blown insulation. NuVision Builders utilizes a closed-cell, spray foam insulation to competently seal the entire attic from any outside environment. A closed–cell spray foam insulated structure is impermeable to air and water while providing the tightest seal possible throughout the entire roof system.

By eliminating air infiltration from the outside of the tight shell, the estimated effective R-value of the roof system can achieve an R-value of 62. In comparison, outdated batt insulation applications typically achieve an R-value of 30. Conventional batt insulation can begin to deteriorate from the date of installation.

Spray foam insulation is applied directly to the underside of roof truss and roof sheathing (above the attic) as compared to batt or outdated blown insulation applications residing in the ceiling joist cavities (below the attic).  This explains why most conventional attics get super-heated and can become life-threatening during summer season. NuVision Builders offers an attic in each green building and that attic stays cool and dry attic in every season.

In review, use of a closed-cell, spray foam insulation application creates a super-tight, super-strong truss and sheathing system and keeps the attic cool and dry by constructing a superior exterior envelope using solid, reinforced concrete walls, solid eves and solid soffits and by insulating above the attic.

The high performance green building methods results in substantial energy cost savings year over year.  For example, by moving air through ducts in a cool and dry attic the HVAC system works far more efficiently and does not cycle as often as conventional HVAC systems.

The spray foam insulation system above the attic means the ducts carrying cold air to each room in the home below is passing through a cold and dry attic space which means less heat loss as compared to conventional, super-hot attics. A cool and dry attic is a perfect solution for long-term storage of personal possessions that would otherwise deteriorate in a super-heated attic or in an attic leaking damp winter air.

Likewise, utilizing NuVision Builders’ green building design features, air handlers are mounted in the cool and dry attic which reduces sound transmission compared to utilizing a closet inside the home to stack an air handler which is not only a waste of living space but creates a recurring noise problem each time the HVAC cycles inside the closet insider your home.

From time to time home owners recognize the importance of performing maintenance on the HVAC air handler such as replacement of filters, cleaning, and other repair that may arise over the course of many years.  An air handler that is mounted up in the cool and dry attic area is far more accessible for maintenance and repair as compared to an air handler stacked tightly inside a living area closet.

Mechanical Ventilation

Home owners spend more than 90% of their time indoors. Indoor air quality is a crucial aspect of green building. In many home designs an increase in pollution due to contaminants, allergens, and other pollutants is an ever-present reality inside the home. By sealing the home with a green building design, fresh air exchange occurs by mechanical ventilation systems while removing moisture.

NuVision Builders utilizes an Energy Recovery Ventilator (ERV) as part of the HVAC system. The ERV draws fresh outdoor air in while cleaning, cooling, and removing moisture from it before distributing it in the home through the HVAC system. ERV significantly reduces energy demand on the HVAC system. Combined with a high-efficiency air purifier the ERV is very effective at expelling indoor air pollutants and providing highest indoor air quality (IAQ).

Net-Zero Energy

All of NuVision Builders’ homes are already low-energy usage by green building design, therefore the final step is to achieve a net-zero Energy home. The term “net-zero energy” (NZE) is a measure of energy consumption. To achieve net-zero energy consumption, the home creates the same or similar renewable energy each year as is consumed.

Utilizing net-zero energy green building strategies does not mean your home is off the grid. Your custom built home stays on the grid to assure energy is uninterrupted during cloudy days, at night, and during inclement weather.

A new home buyer can take advantage of Florida’s sunny climate by the inclusion of photovoltaic solar panels. By using solar power, your new home can produce enough electricity to meet or exceed your annual energy demand.

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