Green
New Trees
New Maple at ECC
The Culver Tree Commission purchased new trees and they were installed over Memorial Day Weekend. Their funds are limited so the number of trees planted this year was fewer than in the past years.
Easterday Construction Co., Inc. has lost several trees along our street scape and the Tree Commission has slated one of our trees, a Wild Cherry, for removal. We’re not the prettiest face on the street, but I do think our large Oak trees along the street add character. When I was growing up there was a huge tree in the center of our loop drive, but it has been gone for more than 20 years, recently replaced by a volunteer Tulip Poplar.
For those of you that don’t know, the Culver Tree Commission accepts donations for the purchase of trees. I spoke to Tree Commissioner Dick Brantingham several times over the past few years about starting some replacement trees along our street scape. This year we received two Maple trees and a Honey Locust.
Tulip Poplar in circle drive at ECC
We made a tax deductible donation of $100 per tree to the Marshall County Community Foundation in the name of the Culver Tree Commission. I would consider that a bargain. On top of getting a nice tree planted, the Culver Fire Department takes care of watering the new trees in the first year. (If you’re interested in taking advantage of this and helping the Culver Tree Commission next year, contact Dick Brantingham or Mike Stallings. You can also contact the Town Hall to let them know you’re interested in helping.)
When I first moved back to Culver, I lived on Ohio Street in the house currently occupied by the Wesley United Methodist Church Thrift Shop. One of the nice things about that location was the beautiful tree-lined street. We have several such streets in Culver. Thanks to the efforts of the Culver Tree Commission, we will have more in the future.
Indiana Energy Code
Last Wednesday I attended a presentation/seminar on the Indiana Energy Code presented by Associated Builders and Contractors of Indiana (ABC) and Newport Ventures. Newport Ventures is supporting the State of Indiana in the adoption of the new Indiana Energy Code by conducting stakeholder meetings, developing a compliance roadmap and conducting training on the new code.
The presentation was informative and will no doubt be useful. Though Easterday Construction would not normally be involved in designing the systems discussed, it is still good for us to have a working knowledge of these things. It helps us understand them when we find them on plans, it gives us the ability to discuss them with clients before the design phase begins, and it also allows us to take the best practices found here and apply them to situations where it is not necessarily required by code.
Some of the things presented were already prevalent in the industry as “‘Best Practices”. These mainly related to insulation standards, optimized framing and building envelope tightness. Others such as changes in electrical systems and HVAC systems for reduced energy consumption have been available, but it has been left to the Owner or Developer’s choice as to whether to pursue them. Many have been promoted by the U.S. Green Building Council and tracked in their LEED Rating System and Certifications in recent years. The Indiana Energy Code is based on standards developed by ASHRAE (The American Society of Heating Refrigeration and Air-Conditioning Engineers). While LEED and ASHRAE share some goals, their standards vary, but suffice to say that following ASHRAE standards are usually the minimum requirements for a project path toward LEED certification.
I have no doubt that all of the standards presented to me on Wednesday will save energy, as defined by the energy necessary to heat, cool, light and generally operate the facility. I was dismayed that when I asked who was researching the Return On Investment (ROI) for these systems, I was told no one. Isn’t it a bit premature to put these practices into law without assessing the final cost? Apparently not, as this was part of a Federal program where Indiana received funds to implement this.
As part of the discussion, the changes to a building HVAC system were discussed. Additional zone divisions will be required. Additional duct sensors, motorized dampers, thermostats (7 day programmable thermostats with off-hour setbacks and controlled overrides only), ducted returns (no return plenums), economizers and heat recovery systems for fresh air intakes including CO2 sensors to determine optimum fresh air requirements and low pressure fan systems will also be required. Again, nothing here struck me as ineffectual for reducing operational energy consumption… But what does it mean if you look at it holistically including construction and maintenance?
- Additional electrical control sensors – additional things to break and things that the average maintenance man won’t be able to service. Optimizing the various control system will require a complicated set-up.
- Ducted returns will require additional sheet metal and associated installation labor.
- The low volume fan systems will require larger ducts and larger heating and cooling units. This could mean additional building height due to dead space between floors for duct work, larger mechanical rooms stealing usable floor space, etc. What about the costs of these additional materials, i.e. the bricks & mortar necessary to raise a building’s height to provide additional system space?
These are just a few of the things that came to my mind during the discussion. Things which could be project killers.
There is no question that Easterday Construction will comply with the new standards. It’s the law now. It currently applies to commercial and industrial projects in Indiana, but we will take what we consider the best of these things and discuss them with residential clients as well. Some of them make sense. Some of them that may not make sense to me today, may do so in the future. I sincerely hope that someone is doing the research to prove that the front end expense (in dollars and energy consumption) of complying with these regulations will pay for itself.
CFL’s
Although compact fluorescent bulbs (CFL’s) still offer a large amount on energy savings, it turns out that they might not last as long as expected.
According to the Wall Street Journal, when PG&E Corp. first started the CFL rebate program, it expected the bulbs to last 9.4 years. But, the company has decreased the estimated lifespan to 6.3 years, therefore limiting energy savings from the bulbs. Higher burnout rates were experienced in certain locations throughout the home, like in bathrooms and in recessed lighting. Turning them on and off a lot also seems to impair longevity.
From Hardware Retailing Magazine, March 2011
Attic Insulation
Typical Ice Dam Condition
Becky and I made a trip to South Bend last week and she pointed out the icicles on many of the houses and buildings. This led to a discussion on ice dams, which I discussed here previously. There’s another nice picture here.
It was one of those days where it was easy to see which buildings and homes had good attic insulation and which didn’t. The temperatures were just below freezing and it had been nearly a week since the last snow. Those structures with poor attic insulation stood out easily amongst the sea of white roofs.
The fact that heat rises makes it fairly easy to understand that the majority of a structure’s heat loss is through the roof. In most homes, adding attic insulation is a fairly economical way to save energy costs. When done correctly in conjunction with proper venting, it can prevent or cure ice dam issues as well. This is green that saves green!
Icicles are pretty, but they may well be the sign of underlying problems and potentially the precursor to water damage. Take a look at your home the next time you pull into your neighborhood. If your house has lots of pretty icicles and is the only one without snow on the roof, you may have an insulation deficit.
Green = Many Things
Where is it written that a green-built home must be small? Monthly energy bills determine a home’s carbon footprint, not its size. In fact, a 10,000 square foot house with zero energy bills is far greener than a 1,500 square foot energy hog.
I would argue that a large home built with no wood, using concrete, steel, and polystyrene (a petrochemical product) is far greener than a smaller home built with wood. This is because the concrete house can last 300 years with no maintenance, while the “earth-friendly” wood house is subject to mold, mildew, rot, termite and fire damage (despite being recycled, reclaimed, salvaged, or sustainably grown FCS-certified).
The periodic replacement of inferior building material, such as wood, is far more wasteful to our natural resources than a concrete house built to last. Durability trumps embodied energy.
Green building encompasses five elements: durability, energy efficiency, water efficiency, indoor air quality, and the environment – not just the environment alone. A fact sometimes lost on many advocates of green.
Dueling theories aside, there is one thing on which all building science experts agree. To save money every time, place resources into the exterior building shell envelope, not into mechanicals or renewables.
Lee Hitchox – Taken from BMail; Builder Magazine
