When building a New Home, or Remodeling your existing home, a big part of the design process should focus on the heating and cooling systems.  New building and energy efficiency codes are requiring performance of both the mechanical systems and the building envelope that are far exceed anything seen in the past. The Department of Energy recently held the Building America Technical Update meeting in Denver and discussed current issues and future trends in building mechanical systems. It looks like there will be systems available in the future that could reduce overall heating and cooling energy requirements by as much as 90%. They also discussed innovative ideas like radiant floor cooling? Sounds interesting, and it is definitely something we here at REEF, Cape Cod's Home Builder will continue to investigate.

Here is the full article from builderonline.com: Energy Efficiency Update

What is Cogeneration?

 

I have a friend in central New Hampshire who heats her house all winter long with a wood stove.  What makes this notable is that her wood stove is also set up to meet her hot water demands.

This type of cogeneration is not that unusual, however, the practicality of this type of system is limited.

A more conventional and scalable cogeneration system, takes advantage of natural gas or propane as the fuel source.  As the fuel burns electricity is generated.  The waste heat produced from combustion is captured and used for water heating, space heating, pool and spa heating, and absorption chilling.

This type of combined heat and power system, or (CHP) has major potential commercial and residential applicability.

Currnet manufacturers of cogeneration systems include some well known companies, such as Honda http://world.honda.com/cogenerator/ and Cummins http://www.cumminspower.com/en/solutions/cogeneration/  As with any home energy system, a careful cost-benefit analysis must part of the analysis to determine the right way to meet your homes energy demands.

The home energy options that once were considered to be peripheral are now becoming more mainstream. This can be traced directly to these system's capacity for increased energy efficiency, their reduced environmental impact, and thier long term investment sensibility. 

   Planning and permitting your new home, remodeling or renovation project can be the most challenging part of the process. At REEF, Cape Cod's Home Builder, we provide complete, design, planning, and permitting services as part of our construction process. Any project, even the most simple, have several layers of permitting and design that must be addressed properly for the project to be a success.  Things like building codes, zoning by-laws, historic districs, conservation and wetlands, septic systems and energy efficiency all come into play.  Our team of experts has the experience, and technical knowledge to make the entire process predictable. 

If you are thinking of building a new home or remodeling on Cape Cod, you should take a minute and download our Critical Plannign Guide below:

And this could be your new home!

    We came across this article on www.greenbuildingadvisor.com that discusses long term air quality issues resulting from a poorly designed and installed exterior envelope in a Green building in Belgium.  In reality, all of the individual components used in creating the high efficiency home design, worked in theory, but in practice, and under poor supervision these products did not work well together.   The most important thing we have learned over the years has been how critical proper ventilation is to a healthy home.  Indoor air must move, and needs to move enough to evacuate built-up moisture in the home.  Properly insulating a Custom Home, or a renovation  is always tricky, but we have found that proven materials, installed properly always work. 

 

Here is the full article from GreenBuildingAdvisor.com: http://www.greenbuildingadvisor.com/blogs/dept/musings/belgian-passivhaus-rendered-uninhabitable-bad-indoor-air

   So, with the new energy code looming, that basically makes new homes and major renovations more air tight than ever, people are asking us if houses need to breathe.  The answer is yes, and it is more important now than ever. Houses need a mechanism in place to allow warm moist air to move out of the house in a controlled and predicatable fashion. There are only two ways to do that, first is to have bath fans run continously when people are in the house.  The second is with a heat recovery ventilator, that brings fresh air into a house, and evacuates air at a set rate.  Our experience has been that the heat recovery ventilator, although more expensive than the bath fan solution, is a much better way of controlling fresh air exchange in a home.

Here is an article on the subject from housingzone.com : http://www.housingzone.com/green-energy-efficiency/building-science-do-houses-need-breathe

   The building and remodeling industry is constantly changing.  Whether building codes, new products, materials, or techniques, something new is always around the corner.   Massachusetts is going to adopt a new building code in July 2012 that will raise the bar on energy efficiency.  This new code covers not only insulation, windows, and HVAC systems, but also energy efficient lighting.  Under this new code, at least 75% of the lighting in your new home will have to be high efficiency.   The cost of high efficiency lighting in a new home or renovation can be expensive.  But as custom builders, who struggle with controlling costs on a daily basis, we were happy to see this new bulb from Phillips.  This light has a working life of at least 20 years!! So for a reasonable additional cost, you can almost guarantee worry free lighting for the lifespan of the new home.

 

Here is the full article on this new light: 20 Year Light Bulb

 

If you are thinking of a new home, renovation, or remodeling project on Cape Cod this year, you should definitely contact us to see how this new code may impact your project.  Click below to talk to one of our experts!

    As a custom builder, we are often asked to examine green technologies as part of the design and construction process.  We have found that the "net-zero" home concept is not really a financially feasible option yet, but we have discovered several technologies that can significantly reduce the operating costs of the home with a reasonable initial investment. We here at REEF belive so strongly in this technology that we invested in 5 Kilowatt photovoltaic system for our own office building, and we can tell you first hand that the results have been great!.   Here is an interesting article from Inman News that points out some green technologies that you can use today to reduce the long term cost of operating your home...

Green Homes Give Back

 

If you would like to discuss the possibilities of green construction in your next custom home, remodeling or renovation project, click below to ask one of our experts!

  The Massachusetts Board of Building Regulations and Standards is working on changing the building code yet again!  This pending change involves adoption of the IECC 2012 Energy Code.  Massachusetts has been operating under the 2009 version of the IECC Code for approximately the last two years.  When the 2009 version was implemented, there was a 3-5% increase in building costs.  Based on the available information, custom builders will see at least another 2-4% increase.   The Home Builder's Association of Massachusetts has prepared an article outlining the provisions of the new code. There are dramatic increases in energy efficiency, insulation required to make new homes and major renovations compliant.  As a custom builder on Cape Cod, REEF has prided itself in training its staff on the requirements of these ever-changing regulations. It looks like this new code will be adopted in July 2012.  Here is the full article from the Home Builders Association of Masssachusetts: MA to adopt IECC 2012 Energy Code

 

If you have questions regarding how this change may impact your new custom home, renovation, or remodeling project, click below to contact one of our experts!

   Congress has taken action to promote energy efficiency by banning incandescent lights.  Despite the initial costs, and apprehension towards the new CFL or LED light bulbs, this mandate has caused the market to respond with some incredibly innovative products.  Some of these new light bulbs consume less than 10% of the energy used with incandescent bulbs, and have a working life that is dramatically improved.   Here is an article from Architectural Record and a slide show that highlights some of the new products that meet the energy efficiency standards: http://archrecord.construction.com/products/ProductFocus/2012/1202-Light-Bulbs/

   With all of the recent changes to the energy code, there has been a resurgence in concerns about houses being  too "tight."  Many people believe that the key to long term building health is the fact that many older homes, with there inherent leaks and drafts allowed fresh air to move through the home.  That theory is somewhat true, and actually even more critical now as the new energy code is based on eliminating uncontrolled air infiltration.  Proper insulation, use of vapor and air barriers, along with some mechanical ventilation guarantees a healthy indoor environment. 

 Here is an article from Fine Homebuilding that discusses various ways to achieve a healthy air quality, while still achieving the critical energy efficiency requirements of today's building codes.

 

Do Houses Need To Breathe?