It is Spring Tune-Up Time for Your Home

Lucas Hamilton

Lucas Hamilton is Manager, Building Science Applications for CertainTeed Corporation

It is spring and we just celebrated the 42nd Anniversary of Earth Day. While you are contemplating changes you can make to your home and property to conserve energy or improve curb appeal in a re-heating real estate market, keep in mind that this is the perfect time to do a home inspection and make sure that your home is efficient, safe and in-keeping with the Earth Day ideals.

Here are a few places you should inspect:

  • Inspect your roof for missing or broken shingles or possible places where water could come in. If your roof is not ventilated properly you could have damage from ice dams. Nothing could be greener than making our existing resources last longer and your roof is the first line of defense.
  • Check your attic or crawl space to make sure that water is not coming in.  It is also a good time to see if you need to add additional insulation to your attic space. The attic is one of the easiest places in a home to add insulation and insulation prices are about as low as they get right now so no point in waiting.
  • Clean your gutters.  Make sure they are cleared for the rainy season. Leaves and dirt can build up in any season. Clogged gutters are one of the most efficient ways to redirect water back into your building once you have already shed it.
  • Tune up your air conditioner.  It is the prime time for specials from contractors. Making sure that your unit is working properly can help save on utility bills and actually improve your indoor air quality.
  • Check your walls and foundation for any cracks that could cause moisture infiltration. You must maintain your barriers.
  • Check the basement for mold. When the temperature gets above 41 degrees that is when mold is happy. If mold is present you will be able to smell it. If it smells bad it is bad.

If you have an older home it is critical to make upgrades and improvements when signs of weakness appear.  Taking care of simple repairs will save you money over time but will also make your home more competitive in the marketplace and make for a healthier habitat for you and your family.

Can Mapping Urban Albedo Help Control Urban Heat Island Effect?

 

Lucas Hamilton

Lucas Hamilton is Manager, Building Science Applications for CertainTeed Corporation

Urban temperatures are rising and it has a great deal to do with the types of materials we choose to construct our habitat. Historically, our construction materials have been great absorbers of infrared and near infrared solar radiation. As our urban centers have grown they have accumulated an excess potential for heat absorption which has put them out of balance compared to more rural areas. This is what is called the heat island effect.  The good news is that every urban surface exposed to the sun becomes a potential location to reverse this process and restore the balance.

While researching maps of Philadelphia (my home) for a previous blog on billing property owners for impervious surfaces that contribute to the rainwater run-off pouring into co-mingled storm/sewer systems, I came across the map used to identify these properties by the City (http://www.phila.gov/water/swmap). 

The interactive map shows the relative water permeability of surfaces delineating between general materials such as roofing, parking areas, roads, and open spaces. I started to think about how we could use similar technology to identify the albedo of the surfaces – a material’s natural ability to reflect or absorb radiant heat gain from solar radiation.

Some creative person (with a lot of time on their hands) should be able to use tools like Google Earth, identify the nature of the surfaces they see, and draw from a database of Solar Reflective Index (SRI) values to identify the potential targets for improvement. How can we influence global cooling?  By using technology that is available to identify the albedo of existing buildings. Once identified, municipalities can incentivize people to change to cool roofs or to living roofs where appropriate. The city could encourage the re-planting of native trees in unusable areas. There are all kinds of things each property could do to make a difference.

I would love to hear what other ideas may be out there to address this issue.  Any takers?

Energy Deregulation is a Positive for Consumers, but Do Your Homework

 Danny Small is Manager, Building Science Development for CertainTeed Corporation

Danny Small

Danny Small

 If your utility called you up and offered you a significant discount on your electric or natural gas rate, would you take it? 

Usually I’m speaking to builders, architects and homeowners about reducing energy costs by using less energy.  Now, in many parts of the country, you can also reduce your energy costs by simply paying less for the energy you use.

With the recent deregulation of the energy industry, individuals as well as businesses in certain areas of the U.S. now actually have a choice of utility suppliers.  What that means is that you can now lower the rate you pay for your energy by taking advantage of a seamless and easy process.  Electricity choice is well under way, and natural gas is right behind it.  If your state does not yet offer energy choice, it’s coming, and it can offer a significant savings for residences, small businesses and large commercial and industrial entities.

Here’s how it works:  Your utility bill consists of three components:  generation, transmission and distribution.  The utility remains responsible for distribution:  Getting the energy to your house, maintaining the lines and poles and taking care of the billing, collections and customer service. The generation and transmission however, is now open to competition and can be “shopped around,” resulting in potentially large savings for the customer.

You may be wondering how the utility feels about this whole thing.  In one of my previous positions, I helped manage energy efficiency incentive programs in several eastern states, working closely with utility companies as deregulation started to roll out.  The utilities actually actively encouraged their customers to shop their rates.  Since the utility does not make its money on generation or transmission, they are not looking to provide the lowest rate; they just pass the cost on to the customers.  You can view a news interview with a representative from a Pennsylvania utility, explaining how the process works.  

Switching is easy.  It costs nothing, takes only a few minutes online or over the phone, and in many cases there is no long-term commitment.  Everything stays exactly the same from the customer’s perspective:  Same bill, same payment process, same service, same electricity.  Just a lower rate! You really have nothing to lose in making the switch.

Among energy suppliers, both rates and terms can vary widely.  Go to www.ShopForEnergy.com to see the options available in your area.  Besides a competitive rate, look for a plan with no termination fee.  In addition, some suppliers offer 100% renewable energy options (recommended) and other benefits to win your business.  For example, one major eastern supplier, North American Power, offers all of the above and also contributes $1 per month from its own profits on behalf of each of its customers to a charity of the customer’s choice.

So far, my experience “privatizing” my energy has been extremely positive, and I highly recommend it if the option is available to you.