ABOUT "GREEN"
Many builders say they are green, but what does that mean? Imagine Homes receives third-party certification every home we build through the Build San Antonio Green and Energy Star programs. We have even joined the U.S. Department of Energy’s Builders Challenge to do our part to build homes that are at least 30% more energy-efficient than the standard code built home. To build high performance, green new homes using the latest green building technology, like Demilec foam insulation in a closed attic system, each home must be designed as a system to achieve energy-efficiency, water conservation, healthy indoor air quality and reduce environmental impact through use of recycled content building materials and proper site management. For example, by using advanced framing techniques to eliminate voids in exterior walls, we can install more insulation along with Demilec spray foam insulation at the roof line to create a closed, semi-conditioned attic allowing all air conditioning duct work to be located inside conditioned space. Add high-efficiency windows with low-e glass, duct blaster and blower door performance testing on every home and the 15 SEER Carrier air conditioning system can be properly sized to not only provide efficient comfort, but effectively control humidity as well. You win by saving money every month on utility bills, enjoying a more comfortable home and the peace of mind of increased durability.

Learn more about green homes by selecting a leaf below:

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Semi-conditioned closed attic system featuring Demilec Sealaction 500 open cell spray foam insulation. By removing ventilation from the attic space and locating Demilec air tight foam insulation under the roof deck, the attic approximates the temperature of the home requiring your air conditioning system to work less since all the ducts are located in a conditioned space. You benefit from up to 50% in energy savings and increased comfort.
The Demilec Advantage
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Demilec Agribalance open cell spray foam insulation provides an air tight thermal barrier around the walls and roof deck of each home. Watch the video below for more information.
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Energy-efficient windows incorporating Low-E (emissivity), double pane glass reduce solar heat gain which increases comfort and energy savings plus limits damaging UV sunlight that can fade carpets, draperies and furniture. Our attention to detail is evident in our method of installing windows using silicone caulk, moistop and adhesive flashing tape to provide water intrusion protection and reduced air infiltration. Download a free report.
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15 S.E.E.R. (Seasonal Energy Efficiency Ratio) Carrier air conditioning condenser with Puron, a non-ozone depleting refrigerant, and gas furnace or heat pump (if natural gas not available in neighborhood) provides 10% increased efficiency and energy savings when compared to a 13 S.E.E.R. system which is the minimum allowed by current building codes. Bigger is not always better. A Manual J design load calculation takes into account factors such as, window size and orientation, insulation, duct leakage, and size of the home to determine the heat gain during warm weather and heat loss during cold weather. This information is used by Imagine Homes to properly size the system which benefits you with improved comfort, better humidity control, increased energy-efficiency and a longer life for the system. A "right sized" system provides comfort, humidity control and energy-efficiency. Find out more. 15 SEER Condenser
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Have you been in a home where the doors close by themselves when the air conditioner runs? The typical home will have 1 or 2 centrally located return air vents (Figure 1). The system is in balance until the bedroom doors are closed (Figure 2). The central return draws air from the body of the house creating a negative pressure zone (red area) since the only path for air out of the bedrooms is under the door. This also restricts air flow into the bedrooms (blue area) that can cause comfort problems and increases the potential for the negative pressure areas to pull outside air containing moisture, pollens, pesticides or other pollutants into the home or backdraft carbon monoxide from gas appliance flues, fireplace or garage. Imagine Homes places return air vents or transfer grills in each bedroom to provide additional paths for air flow and installs a fresh air vent to provide filtered fresh air to the home (Figure 3). The home is under a small positive pressure to keep hot, humid air from being pulled into the home.
Green HVAC System
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The air conditioning duct system installed in each Imagine Homes is duct blaster tested by a 3rd party energy rater to insure minimal leakage. Duct connections are sealed with mastic to reduce leakage from exposure in hot attics (duct tape does not work). Leakage outside the home results in increased energy use, reduced comfort and increased potential for moisture and indoor air quality issues. Compare this to older homes that may have up to 30% or more duct leakage. Who wants to pay to air condition the attic? Duct blaster tested
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Programmable thermostats save money on utility costs by allowing a schedule of times and temperatures to be set for weekdays and weekend allowing you to return to a comfortable home at the end of the day without spending money to operate your air conditioning system while you are away. Programmable Thermostat
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A gas water heater (standard in neighborhoods with natural gas) provides continuous hot water on demand and energy savings by not working to maintain a tank of hot water at all times.  Water Heater
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Blower door tests are performed on each Imagine Home to ensure a tight home (infiltration rate no greater than .35 cfm50 per square foot of surface air). A low infiltration rate means less outside air carrying pollutants, pollens and dust into the home, more comfort and less energy use. Blower Door
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The recyled nylon fibers used to make Shaw Anso Nylon carpeting provides exceptional performance, and built-in stain and crush resistance while diverting carpeting that would otherwise end up in the landfill. One step closer to a "cradle to cradle" solution. Additionally, each of the carpet options available for your home carries the Carpet and Rug Institute (CRI) Green Label setting higher standards for indoor air quality.  Carpet
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Carbon monoxide detector installed in each home.
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Fiber-cement siding and soffit materials resist termites, will not rot or deteriorate, and provides long-term durability and strength.
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Acme Brick provides durable, low-maintenance, long life exterior. Read more about it here (PDF).
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Moen plumbing fixture with 1.5 gpm aerators conserve water.
Moen Faucet
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Imagine Homes installs a MERV 10 (minimum efficiency reporting value) pleated air conditioning system filter in each home. MERV rates filter efficiency from lowest (0) to highest (16). Most homes are outfitted with basic HVAC filtration - a standard one-inch filters (MERV 0 – 1) that meet minimum filtration standards and requires frequent replacement. Think of a furnace filter as a net that captures particles that flow through it in the airstream. The bigger and better the net, the more and smaller particles that can be captured. You are sure to notice a difference in the quality of air in your home, since whole-house filters are up to 40% more efficient in capturing airborne pollutants and particles from the air passing through the duct system. MERV 10 Air Conditioning Filter
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Have you ever had to flee your house for a few days because it was being painted? Low-VOC paint is odor-free and contains less volatile organic compounds (VOCs). Paints and finishes off-gas VOCs, which can diminish the quality of indoor air and be detrimental to your health. Today, manufacturers of products containing VOCs are using alternative manufacturing techniques that dramatically reduce or eliminate the use of these harmful compounds.
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Factory-built components and materials, such as pre-hung door units with finger-joint pine jambs or finger-joint studs, allow more efficient use of raw materials, making the most out of every piece of wood, incorporate recycled materials and reduce waste. Factory-Built Components
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Energy Star rated appliances save an average of 30% over standard models. Energy Star Rated Appliances
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EPA Water Sense certified Caroma Sydney dual flush toilets provide a remarkable 0.8 and 1.6 gallon per flush 2 button system capable of saving water without sacrificing performance. With a full 4" trapway, blockages become a thing of the past. Dual Flush Toilets
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Energy Star qualified bulbs use about 75 percent less energy than standard incandescent bulbs, last up to 10 times longer and save about $30 or more in electricity costs over each bulb's lifetime. In addition, they produce about 75 percent less heat, so they're safer to operate and can cut energy costs associated with home cooling. Energy Star Qualified Bulbs
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Approximately two-thirds of the waste that would normally end up in the landfill is mulched with a portable grinder for use on the jobsite.

  • Lumber is used for erosion control
  • Sheetrock (gypsum) is added nutrient to topsoil which can help establish lawns
  • Brick & shingles are used for base under concrete walks
  • Cardboard is gathered and sent to recycler
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Drought tolerant landscaping does not mean rocks and cactus. Bermuda sod and low-water plants approved by SAWS for landscapes in the San Antonio area are installed in each home. The complete list can be found at www.saws.org/conservation.

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With a structured plumbing distribution system, lines are dedicated to individual fixtures so less water is needed to "flush" lines of cool water before hot water is delivered. Less time waiting for hot water means less water wasted and less energy loss. Read this PDF for more information.  Manabloc Plumbing System
San Antonio Green Home  Manabloc Plumbing System  Native, Drought-Tolerant Landscaping  Jobsite Waste Recycling Air Conditioning Duct System Semi-conditioned, closed attic system Return Air Vents Demilec Agribalance open cell spray foam insulation  Tankless Water Heater Blower Door Tests Energy Efficient Windows Programmable Thermostats 15 S.E.E.R. Carrier Air Conditioning Shaw Anso Carpeting Carbon Monoxide Detector Acme Brick Fiber Cement Siding MERV 10 Pleated A/C Filter Moen Plumbing Fixture Low-VOC Paint Factory-Built Components Energy Star Rated Appliances Dual Flush Toilets Energy Star Qualified Bulbs
San Antonio Green Builder - Imagine Homes - Build Green HOME Build San Antonio Green Energy Star Partner 2008 NAHB Green Building Award Winner "Home of the Year"2009 NAHB Green Buiidlign Award Winner
Trees Planted - 378 since 2006; CO2 Reduction 946,233 lbs/year based on home energy ratings for homes built since June 2006
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San Antonio green home builder -- Imagine Homes