Archive for July, 2011|Monthly archive page

The Way Things Were- How Neighborhoods Change

Thursday, July 28th, 2011

Have you ever wanted to speak your mind about how your neighborhood has changed? Take a peek into a Northern Virginia Neighbor’s mind as he explores the changes he’s seen in his neighborhood. The good, the bad and the ugly.

Back in April,  an Arlington Resident, Todd P. had some really passionate things to say about what it meant to him to live in a neighborhood where public transit was still apparent, but not dominant and where the feeling of neighborly love and entrepreneurship was still alive and well. What he said really rang out, and I asked him if it was alright if I used his words in a little article and he was all about sharing; it’s taken a while to dig through the old emails, but I’ve found it and here it is.Thanks so much to Todd for letting us get a glimpse of what he felt Arlington used to be like when he first came to the area, and what it has sense become with the influx of development, which may or may not have been smart-growth. Here is a peek into a Northern Virginia neighbor’s thoughts. Keep in mind this was in response to a heated debate about the introduction of the trolley cars in the Columbia Pike Corridor…
“…But building apartment buildings with smaller footprints and larger outdoor parking areas would mean housing costs would rise dramatically and neighborhoods would be even more dominated by large expanses of ugly paved space than they are already. I guess it’s a matter of your point of view. Personally, I think large obnoxious high rise buildings are ugly.
It doesn’t offer enough population density to support any neighborhood stores – especially not the kind of interesting diversity that we’d like to see on the Pike. It  doesn’t create the density to support any kind of public transit.

When I moved to Arlington, there was this little hardware store on the corner of Walter Reed and Columbia Pike with a little parking lot behind it. I used to go there to avoid the big box chains for my home supplies…oh wait, there’s a high rise building there now. I also used to enjoy half priced burgers at Cowboy Cafe South, where I could go do my grocery shopping and grab a juicy burger afterwards, with the convenience of parking outside of both in a lot. Hmmm…there’s a high rise building going in there now too.

Some how neighborhoods like Del Ray and Westover support “interesting diversity” without having high rises, a trolley and four 7-Elevens. I go to Del Ray all the time to frequent Cheesetique, Dairy Godmother and Let’s Meat on the Avenue. Westover offers Ayer’s Hardware, Westover Market, Lebanese Taverna and Lost Dog. Both have little post offices and a single 7-Eleven and make due with bus lines that seem to work well.

IMHO that housing pattern is an utter disaster. Density and walkability are  excellent characteristics of a city. A car is a glorious luxury for getting  out of town and occasionally having to transport a lot of stuff, but using  it routinely in your everyday life is a dreadful idea for every reason I can  think of.

Walkability yes, but density is not a “plus” in my opinion. Last time I checked, Arlington is a county, not a city. When I moved here, if you wanted city living you moved to Rosslyn or Crystal City, but this urban sprawl creeping into what had previously been more residential neighborhoods is a negative. Arlington doesn’t HAVE to bulk up with development. It could choose to keep its small neighborhoods small and retain their personality.

The town I grew up in was 15 miles from New York City yet strictly zoned itself to maintain its small town charm. There was no industrial zoning and commercial zoning was intentionally managed. For instance, they denied permits to fast food restaurants on the main street, so you can tell where the town line is because all of the Burger Kings and Roy Rogers were built the next town over. It has a very walkable main street with diverse buildings, all without high rises or trolleys.

Arlington is choosing density and expensive transit…it’s not a requirement for things you espouse such as walkability and diversity.”

Let us know what you think and feel free to share your experiences, too! What do you think about the way that your Northern community has changed to manage density? Do you think smart growth has been maintained and sustainability has been factored in? We want to know; share your comments here or find us on facebook.

A Big Rain Barrel Question

Thursday, July 21st, 2011

We talk about Water Consumption quite often and we discuss the usage of water run off and rain water collection, but what about using rain water for watering your tomatoes and basil and other edible plants? Is that good for you?

In the Organic Gardening’s August/September Issue, a Falls Church resident asks a great question: “Is there a potential problem with using the water that drains off of [asphalt shingles]? Should I periodically drain out all of the water to clean out the sediment in the bottom of the rain barrel?”

He was asking this because he’s been collecting water in his rain barrels that comes straight off of his roof to water his edible garden. I guess he was thinking it was like watering his garden with water from the pavement from the very dirty ground and then eating the produce and how healthy could that be? The gurus from the Organic gardener say that the powers that be- mainly the councils of the environment of NYC say that you can’t compare the rain and run off from one area to the rain and run off from another area, so you really can’t generalize how the water in your rain barrel is going to be and how “hazardous” it is to water with and then eat the produce.

Organic Gardening suggests these steps to minimize health hazards:

  • Add a “first flush feature that will capture the fist 5-10 gallons of water that come off of your roof and hold it separately from the next rain- this would be like bird droppings, and the gravel from the asphalt run-off, etc.
  • Apply water from your rain barrel to the soil around your plants rather than directly onto your plants so that the soil will act as a filter.

  • Rinse your produce with clean, potable water before you eat it…
  • Keep your rain barrel reasonably clean. Rinse it at the end of a growing season.

These are great, somewhat common sense tips from one of our favorite sustainable magazines, Organic Gardening! We still do know quite a bit about sustainable living and green building… ask us questions, and leave us comments, we’d love to hear from you!

DIY: Home Energy Audit- The Mechanical System

Thursday, July 14th, 2011

You are getting through the building as a system and now you need to know how the actual brains work.

We’ve gotten through the tools you need, the safety equipment and common sense and how to prepare yourself. Then we discussed the actual building as a system. Now we’re moving on to the actual mechanical systems or what some people call the brains of the house. This would be the heating, cooling and water systems of your home.

Heating System Types

Central- In a central system, air or water is heated in one area and then distributed throughout the system by a fan or pump which is typically controlled by one central thermostat. You check these systems for issues by taking a look at the main system’s records to see when it was last serviced. Check the filters to make sure they are clean and installed properly.

Zone- In a zoned system each room or zone is a self contained system which typically has its own thermostat that controls that zone. You check these types of systems by looking at the baseboards for dust and for potential air leaks in the systems coming from the floor or wall near the baseboards.

Cooling System Types

Space Cooling- is cooling a home by planting trees to shade a home or installing overhangs in the proper way as to allow sun in yet block sun when it is not needed.  Window shades can also be used to block the sunlight and shade your home for thermal blocking. Air conditioning is not always needed, but ducting is typically run through attics and non-conditioned spaces which get really hot. By making sure that ducts are sealed properly ( use of mastic instead of tape so that conditioned air is not leaking straight out into non-conditioned space) you can save money). Another solution to space cooling is to condition an attic an properly air seal an attic and know where you want to create your thermal envelope. Remember your house as a system- take another look at the diagram above and look at all of the paces that air can leak out! Check all of the ducting to make sure that you can’t see daylight through the mastic. If you really want to try to use your incense here you can waft it into you ducts and see if you see any of the smoke coming out through holes; if you see smoke coming out through holes in your ducts, then you can see where the ducts need to have more mastic applied, as that is where your conditioned air is leaking out.

Water System- Hot water is needed to bath and wash dishes and clothes. The temperature of your hot water heater should be set to 120 degrees Fahrenheit. Many people are looking to solar hot water heater systems as they can get up to 70% of their water heated by the sun! This is a fantastic way to save money and see an immediate payback for a home energy improvement. When you are inspecting your hot water system you will want to check to make sure your first two feet of pipe are insulated. Put your hand on the shell of your hot water heater; if it feels warm, it needs a blanket- these can be purchased at big box stores.

Terms to know when looking at mechanical systems in your home:

SEER- Seasonal Energy Efficiency Ratio is the standard for air conditioning efficiency. It is the ratio of the cooling capacity to the power input. The higher the number the more cooling is achieved for each watt of electricity.

HSPF- Heating Season Performance Factor is the most important measure for heatpumps. Heat pumps also have a SEER for their air conditioning function.

EF-Energy Factor is the measure for the overall efficiency of water heaters. It includes the pilot light and standby loss from a tank. Standard gas hot water tanks have been about EF .58 – or about 58% efficient. High efficiency gas tanks above .62 EF and electric tanks above .93 EF qualify for utility rebates. Tankless water heaters range from .79 – .86 EF, while some condensing boilers and water tanks reach above .90 EF.

GPM- Gallons Per Minute is the water flow rate for faucet aerators and shower-heads. Shower-heads are available that work well at 1.6 GPM and aerators that work well at 0.8 GPM.

This is getting exciting, isn’t it?! You’re well on your way on getting through your own energy audit! Next you will find out how to go through your own attic. Why do we have attics anyways? If you have a friend who needs to get started on their own audit, too, send them to the very beginning, and get them started! It is never too late.  If you ever have any questions, or want for us to come do some diagnostics, drop us an email or find us on Facebook!

Building into the Ground

Thursday, July 7th, 2011

Burrowing into the ground isn’t just for the prairie dogs anymore. Californians and East Hampton builders do it for style and substance.

A retired couple wanted to build a modern home that didn’t eat up the entire landscape so they chose to take their not-s0-unassuming modern home and burrow it into the ground. They call it the half there house or the Arc house, this 6,400 square foot modern home is made of concrete, steel, thermal glass walls and cables. Of course, the home is truly decadent inside with very modern amenities and beautiful finishes, but you wouldn’t imagine it being as sprawling as it is from the front, back and side elevation it creates from the straight on views, but once you are in the depths, you will understand. “Using subterranean construction to avoid restrictive building codes is a popular option in places like California’s Napa Valley, where home owners burrow underground for more space.” From the back elevation the whole home looks to be a grassy knoll. “On the property, Japanese maple and copper beech trees sit near a planted flat-roofed garage and grass driveway whose wide-set cobblestones look like part of the landscaping.” It is beautiful and could be actually unassuming, if the home weren’t of the modern airplane hangar aesthetic.

Why would you use subterranean construction? Climate control costs can be dramatically lowered with subterranean construction, just like using geothermal technology.  Some people even argue that whole subdivisions should go  underground. Do you remember our ErdHaus project? Our friends Mike and Andres built a home in Falls Church that was not built into the side of a hill, but dug deeply into the ground to utilize the geothermal energy for heating and cooling techniques. The home in East Hampton is a magnificent example of subterranean construction on a  massive scale in a modern world. The owners weren’t probably looking to go the route of energy efficiency and high performance that most of us are looking to do, but the basis is there, and the technology is there for them and all of us to harness. If you are looking for assistance in a project like this, we’re always happy to provide guidance! We’ve seen it all!