Making your home water-wise 2

admin — Sat, 10 Apr 2010 08:43:56 +0000

How you maintain your garden is also as important as planning when it comes to conserving water. If you’re looking at limiting the amount of water you put into your garden, you will also need to limit the amount of water that flows out of your garden. You can do this is many ways:
• Pick plants, shrubs and grass that are known to develop good root systems and employ gardening techniques that improve roots. One way to do this is to mow the lawn tall, but do it frequently. The other way to do it is to pick plants that go well with your climate and soil and water them well for the first few weeks before you reduce the frequency. Keep looking out for leaves that go yellow and new shoots that look weak and pale.
• Mulching is an excellent way to ensure that your soil remain well hydrated and does not loose moisture, especially if you live in dry weather. Mulch can be conveniently prepared in your backyard using organic waste from your kitchen. A healthy dose of nitrogen fertiliser is also recommended, provided you know what you’re doing.
• Irrigation techniques are the most crucial aspect of conserving water in the backyard. In regions frequent watering is required most homeowners opt for irrigation to keep it convenient. Drip irrigation saves much more water than sprinklers which water a lot of things other than the grass. Gray water systems are another great option. Gray water is ‘wash water’ i.e. water used in the bathrooms, kitchen sinks and laundry, which is treated and then used in gardens. Gray water does not include water from toilets (which is called black water) and is perfectly safe, with few chemicals and pathogens once it’s treated and is used by a large number of families for irrigation. A gray water system is simple enough to be installed in your backyard. However, make sure you are familiar with your locality’s policies on gray water systems.

Making your home water wise

admin — Mon, 05 Apr 2010 08:40:36 +0000

A pretty home in a quiet suburb, kids playing on the porch, toys littering the driveway and a large backyard with a pretty garden. This is usually the picture most homeowners want when they are remodeling their homes. In particular, the large backyard with a pretty garden is very common, especially for those with kids. While it may seem to be the perfect addition to a green home, a garden that is not well-planned can actually do more harm than good to the environment, by causing you to waste water.
Going water-wise is not just limited to toilets and faucets. If you have a garden, a large amount of water goes down there too, sometimes much more than is necessary to keep your garden green. Thus, we often suggest water-efficient landscaping and gardening when we remodel homes. This does not mean tearing up your garden from hearth. Although it is always easier to do over the entire garden, water efficient practices can also be integrated with the way your current garden is. And this can be done quite simply:
• The first way to limit the amount of water you put into your garden is to choose the plants you water carefully. Some plants tend to survive longer with little water and ideally these should be your first choice. This does not mean you turn your garden into a cacti exhibit. Most of the plants that grow naturally in your surroundings are your best option. Trying to grow and maintain an exotic garden can prove to take up a lot of water and money and effort.
• Soil preparation is an important part of creating a water-efficient garden. After the climate, your soil is what will determine what kind of plants will grow best, with less water. Planting ones that suit your soil or treating the soil accordingly before you plant will ensure that your garden works well with the natural weather and minimal water supply.

Low flow water fixtures

admin — Wed, 31 Mar 2010 08:36:24 +0000

Installing water efficient fixtures can definitely bring in savings over the long term, for your pocket as well as the planet. Water efficient toilets save close to 4000 gallons of water per year and water efficient faucets and showerheads too, save large amounts of water as compared to conventional fixtures. However, that is not all. Most water boards and utility providers also offer you rebates on water efficient products.
The amount of rebate depends on the type of product you buy, your water board or utility provider and where you live. For instance products and accessories marked with the EPA’s Watersense label are eligible for rebate in almost all states. A list of utility specific rebates available can be found on the EPA’s Watersense website, here.
What if you’re not buying a WaterSense labelled product? There are quite a few other reputed manufacturer that offer great products and services at the residential, commercial and community level to help reduce water consumption and energy savings. For instance American Standard has been manufacturing products and services to help tackle water scarcity since the past 100 years. Their rebates page offers an exhaustive list of states where you can make savings + get your money back.
Depending on your geographic location, your county, district or state will have their local authorities and programs that work at water conservation. These partner with local water suppliers, manufacturers and state authorities to offer attractive discounts on water efficient products, systems as well as rebates. Check the websites of your local utility provider to know more about how you can save water, save energy as well as money.

Water savings is in the Flush

admin — Fri, 26 Mar 2010 08:29:59 +0000

According to certain estimations, the average person flushes 35 gallons of water down the toilet, everyday. Considering you’re a family of four or more, you can safely presume that nothing less than 300 gallons of water are being used just to flush toilets, other uses of water notwithstanding. Although water is not really expensive in the US (so far) it’s only a matter of time before we begin to feel the pinch. And the ironic part is: despite the fact that it is as cheap as it is, no amount of money can buy or create water, when it’s gone, it’s gone.
So what can we do to prevent this bleak situation? Get new toilets. Conventional toilets use about 5 gallons of water per flush, significantly more than the new toilets, which use about 1.6 gallons. Going by that estimate, you can save phenomenal amounts of water, anywhere between 8000 to 20000 gallons a year, depending on your current usage. This translates into some nifty savings on cash too, upto $100 per year.
The 1.6 gallons per flush (gpf) limit is the newest upper limit enforced by the EPA for toilets, which means there are also toilets that use lesser amount of water, some even lesser than 1 gpf. Many homeowners worry that such ‘low-flow’ toilets will also be low on efficiency. However the latest generation of toilets are high on efficiency while being low on water consumption. Watersense labeled toilets are some of the best you can find today in this category.
Cost is another factor that bothers many homeowners when we suggest low-flow high efficiency toilets. Although these toilets are expensive than normal toilets, the annual savings on water bills pretty much offset the initial costs. In fact, according to certain estimations, the ROI on water efficient toilets is about 50%. Altogether, this makes water efficient toilets a very sensible option if you’re going to remodel your bathroom.

Making your home water-wise

admin — Sun, 21 Mar 2010 13:29:44 +0000

Saving water is more often than not, the introductory phrase to environmental awareness. Ask anyone how they plan to save the environment and “Turn off the tap while brushing” is on their list of top three ways. However, saving water and using it efficiently is one of the most basic ways in which we can ensure our homes are green. While most of us will conscientiously try and maintain water saving habits in the house and encourage others to do so, a lot of water wastage happens in other, not so obvious ways. Therefore, while remodeling homes we often ask homeowners to look beyond turning their taps off to replacing them altogether with water efficient taps.
A sure-shot way of looking for faucets that can help save water is to look for EPA’s ‘Watersense’ label, a certification given to bathroom fixtures and accessories that use minimum water, no more than 1.6 gallons per minute, as per federal regulations. The Watersense label, a program by EPA, is an independent third party certification given to products that clear the strict federal requirements.
Water efficient bathroom fixtures are not just limited to faucet, they also extend to showerheads that provide the comfort, and ‘feel’ of a regular shower head while using only a fraction of the water. In fact, there is a range of products that have the Watersense label and can greatly limit your water usage and wastage. These products cost a little more than the regular products, however, are worth it when you consider their quality and reliability as well as efficiency and lifetime value. Replacing your current fixtures with water efficient, or even better, Watersense fixtures is bound to bring in large savings in your annual water bill. To know exactly how much, you can use the savings calculator on the EPA’s Watersense website.

Additional Tips While Choosing Windows

admin — Mon, 01 Feb 2010 08:11:32 +0000

1. Shades, Awnings, Blinds, Curtains and even foliage around the windows can affect solar heat gain and can also be a cheap way to cool the house.
2. There are five parts of a window that affect its energy efficiency: Glazing technology; Frame; Operating Type i.e. how it opens and closes; Low-E coatings; Gas fills; Spacers. You need to check all these aspects of a window and ensure that they are the best suited for your climate.
3. Depending on the kind of problem you think you’re likely to have, focus on each of the six parts mentioned above. For instance:
a. If you live in predominantly warm and sunny climate, then you will need to focus on Glazing, Low-E coatings
b. If your weather is humid, then attention to spacers, frames and operating type will keep condensation and leakage problems in check
c. In cold climates, glazing, frame, spacers and gas fills need to be checked well before buying
4. Energy-efficient mortgages are a way of paying for energy efficient windows, which typically cost more than regular windows. This actually turns out to be quite cost effective, because the savings on energy and utility bills arising out of energy-efficient homes offsets the monthly mortgage payments. To get more details, visit the energy department in your state.
5. Important: Get your energy efficient windows installed by a professional. If not installed properly, they will be less efficient than even regular windows. . Make sure your installation expert has experience in installing windows and is familiar that particular manufacturer.

Choosing a Window

admin — Thu, 28 Jan 2010 08:04:41 +0000

With so many options, ratings and technologies out there, picking a window can be very confusing. Add to that, you will have your own criteria for look, comfort, energy savings and of course price. However, there are many resources out there that can make this quite easy for you. We’ll list them here:
• Energy efficient windows of any type are going to be more expensive than regular windows. This is something you will need to be prepared for. However, this one-time expense really pays off, and even your remodelling contractor will agree. Energy efficient windows can lead to money savings of 7-24% (acc. To the EPA) and in some climates, upto 40% annually. It is proven that in 2-3 years, energy efficient windows pay off for themselves.
• The kind of windows you will need depends largely on the climate in your region. Your climate impacts your heating and cooling requirements, your house design and your energy bills. In order that your windows provide you with an optimal solution, they need to keep comfortable as high as possible while keeping cost as low. Thankfully, you don’t have to do the math. This neat window selection tool on the efficient window collaborative website gives you how much you can save on different window types depending on where you live. Try it out here: http://www.efficientwindows.org/selection.cfm.
• As obvious, go for windows with the Energy Star rating or the NFRC (National Fenestration Rating Council) logo. Starting 2010, EPA has come up with improved energy star ratings for windows, which can get you tax credit of over $1,500. Make sure you check for a red label marked ‘Qualified until March 31, 2010’ which means the window was made according to the old rating system. The NFRC ratings will give you the values for the five criteria mentioned in our first post in this series and are also very reliable.

Windows and insulation

admin — Sun, 24 Jan 2010 08:58:11 +0000

Sometimes getting the U-Factor, SHGC and VT values right is not enough. Often, the installation of the window itself, i.e. the entire window assembly can have flaws. These flaws result in air leakage – one of the main obstacles in trying to achieve energy efficiency with the help of windows.
If your house is built on the Passivhaus principles; or you are looking at seriously reducing your HVAC requirements (and thus the bill) then air leakages through windows can punch a large through your plan. Some energy efficient windows specify the AL value (expressed in cubic feet of air passing through for every square foot of the window assembly) between 0-1. The lower the value, the lesser the leakage. The industry-accepted value is 0.30.
Another problem for insulation is condensation. If you live in cold areas, you’ve probably seem frost or dew on the edges of the windows. Looks quite ‘Christmassy’ but it only means that much more heating load. Condensation happens when inside warm air comes into contact with cold panes and glass, which essentially means your windows are not doing such a good job insulating.
With condensation and air leakage, there aren’t fixed ratings to go by. However, certain materials and window technologies work better. For example, if you’re opting for multiple pane windows, looks for stainless steel spacers, or thermally improved spacers made from silicon foam or butyl tape. These spacers might be more expensive, but they are better are insulating, sealing and thus preventing unwanted heat transfer, while at the same time allowing from seasonal expansions and contractions in panes. Similarly, opting for energy efficient windows with two or more panes or glazing reduces condensation even at indoor humidity levels of 45-60%. This is especially true of windows with argon/krypton glass filled windows.

Windows and Natural lighting

admin — Wed, 20 Jan 2010 08:09:34 +0000

It is very evident that the larger your window, the more natural light it will bring in. Depending on the positioning of your windows, and its visible transmittance (VT) value, your windows could provide you with enough natural light to greatly minimize if not eliminate electric lighting requirements during daytime.
VT values are generally given between 0-1. A rating of over 0.70 is the highest you can get with clear glass windows devoid of any coatings or tints. The more the number of panes, coatings and tints the lower the VT value.
A high Visible Transmittance has another advantage – it eliminates the cooling function which is usually required in a house that uses electric lighting. A high VT value is especially important when a home is built using passive house principles or design.
However, one thing to consider when it comes to VT, is that a window with a high VT value, will also admit that much more solar energy (heat) inside the room. Thus, a clear glass window with a VT of 0.8 will also have an SHGC of over 0.60 – something not at all desirable in a warm or sunny climate.
To get around this, one can use Low E coatings, which are invisible, and yet block heat gain considerably. These coatings also protect indoor furniture and upholstery from the damaging effects of UV rays. Another way is to have operable windows that you can open up to air the room out frequently. Needless to say, a good ventilation system is important when you have large windows and a sunny climate.
For windows that are low on SHGC and high on VT, look for a high Light-to-Solar gain ratio. This determines how much more light is let in without adding to the heat.

Windows and Heating

admin — Sun, 17 Jan 2010 08:04:21 +0000

There are two ways that windows help in heating and cooling – by preventing heat loss from the room, and by taking in heat from the outside. The former is measured by a window’s U-Factor and the latter by SHGC. U-Factor measures how much heat is lost through the window. The actual math gets quite complicated – U-Factor tells you how much heat is lost in one hour for one square foot at a certain temperature. A low U-Factor value (usually of 0.35 or lesser) means less loss and thus better insulation. Conversely, some windows may even mention an R-value, which is a measure of insulation. A low U-value corresponds to a high R-value.
SHGC is a value between 0-1. The lower the value, the less the amount of heat a window admits. Depending on the climate and your heating/cooling requirements you will need to pick a window with the right combination of SHGC and U-value. In cold climates, you want a U-value lesser than 0.35 combined with a high SHGC of around 0.60 or higher. This will considerable reduce the load on your heating system. For warm climates, you want the opposite – a low SHGC of less than 0.40 with a high U-value.
Does this mean you will have to change windows to match the seasons? Not necessarily. A metallic oxide layer (called a low E coating) applied on the outside keep the heat out, lowering the SHGC and when applied on the inside decreases the U-value. Even tints work well, though they only reduce the SHGC value.
Does material matter? Very much so, windows made of wood are not very good on insulation, while vinyl and fibreglass frames have the lowest U-values. Metal should be your last option when looking for insulation.