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"David Johnston and Scott Gibson offer guidance on environmentally sensitive home building in Green from the Ground Up: Sustainable, Healthy, and Energy-Efficient Home Construction (Taunton Press, paperback). The book is packed with information, tips, illustrations and case studies that offer wisdom earned from experience." -- Detroit Free Press (Michigan)
"Eco-friendly housing used to be thought of as expensive, ugly or just plain weird. Now it's becoming common. David Johnston and Scott Gibson offer guidance on environmentally sensitive home building in Green from the Ground Up: Sustainable, Healthy, and Energy-Efficient Home Construction. The book helps builders and homeowners create houses that conserve natural resources and are energy-efficient and healthful. It's packed with information, tips, illustrations and case studies that offer wisdom earned from experience." -- McClatchy-Tribune News Service
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Natural Lighting, Sustainable Design, And Retractable Awnings

Natural lighting is one integral - but often overlooked - concept in both standard architectural design and sustainable design. Natural lighting is an appealing design statement because it is naturally lovely. It also is significantly more energy efficient because it reduces dependence on artificial light for most of the day.

The key to incorporating natural light is in providing brightness while managing glare - and that's where retractable awnings can be a crucial design element.

The Importance of Lighting in Architecture Lighting is an incredibly important method to highlight the mood and functionality of a space. In traditional architecture, natural lighting creates a specific mood to enhance comfort. Nowadays, sustainable design is introducing a complementary feature: to save energy.

One architectural book defines the patterns of light and dark as a "tapestry" that balances the room. Light highlights functional areas; it establishes and smoothes visual contrasts. Effective lighting strategies blend color, contrast, and shadows, which makes the variability of natural light attractive. The uniformity of artificial light can't bring the same delicate touch.

Additionally, artificial light isn't necessary. There is a giant (and electricity-free) light source right in the sky. Sustainable designs - called daylighting - use sunlight as an interior light source to cut down electricity usage. Because this is so energy-efficient, daylighting is a highly desirable component energy efficiency programs, even recognized by LEED certifications.

The key is to make the lighting scheme effective, so natural lighting has to: $ Mitigate heat gain. Too much heat, and air conditioning use becomes an energy issue. $ Control glare and UV rays. Direct sunlight can cause problems with normal tasks (reading or working at a computer). $ Optimize light. Sunlight can be a good thing, not just a thing. Good lighting creates a feeling of warmth, comfort, and well-being, as well as reduces headaches and eye strain.

Where Retractable Awnings Fit In The key to natural light is controlling that light, and that's where retractable awnings are a vital design concept.

Retractable awnings have long been incorporated in traditional architecture to produce translucent shading - in other words, diffuse natural light. As part of a lighting scheme, retractable awnings bring two important advantages: $ The fabrics of these awnings softly diffuse light, producing the warmth of the color reflecting from the fabric. $ The exterior shade from retractable awnings reduces glare and prevents UV rays from entering a room.

Retractable awnings enhance sustainable lighting design, as well, through better efficiency than windows, window tinting, blinds and shades, or fixed awnings: $ Retractable awnings reduce summer heat gain by blocking sunlight during hot, long-light months. This reduces heat gain by as much as 77% (up to 20 degrees) and cuts air conditioning use by 25%. $ Retractable awnings allow winter heat gain. This is incredibly important. Sunlight is crucial to providing natural heat during autumn and winter. Cutting off sunlight permanently through fixed awnings or heavy window treatments actually increases energy use in winter months - more than it saves in summer.

Designing with Retractable Awnings Design isn't a product. Design is a plan. Retractable awnings can enhance the lighting of a room or save money simply by being installed. But you can really maximize your investment and get truly spectacular results with a little bit of planning.

First and most important, look at the fabric. High-quality retractable awnings (even in budget lines) use solution-dyed acrylic. It's a durable, stain-resistant, fade-resistant fabric with excellent color quality. Even better, it's approved by the American Skin Cancer Association for its UV protection. Because solution-dyed acrylic is synthetic, it is available in an astonishing array of colors and patterns. For maximum impact on natural lighting designs, consider retractable awnings fabrics in warm, honey-colored tones like dark yellows, beige, orange, or cream. That palette provides very soft color that reduces glare while still being bright and cheerful.

Another major factor are accessories for the retractable awning. Motors are a cinch; motorized retractable awnings are used four times more often than manual retractable awnings according to industry research. Other features like remote controls or switches allow awnings to be installed in otherwise inaccessible areas - over extremely high windows, sides of buildings, or over walkways - and be opened and closed easily. Other features like timers, wind sensors, and rain sensors can protect the retractable awning in threatening weather (and times with lowlight, when any natural light should be maximized).

And always remember to look at the frame. Almost all of the function of a retractable awning comes from what it offers indoors (light control, energy efficiency) but its beauty comes from how it looks outside. There are many frame styles, and high-end assemblers can custom-size retractable awnings to the inch. Plan where you need an awning based on your lighting and energy needs inside - but match the style to the outside for the best curb appeal.

About the Author:
Retractable Awnings offers afforable high quality awnings, which are durable and easy to install. http://www.retractableawnings.com/
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Sustainable Economy Design

Green initiatives are a driving force in the Obama Administration's economic plans. The $787 billion American Recovery and Reinvestment Act is expected to create 3.5 million green economy jobs over the next two years. While federal agencies like the Environmental Protection Agency (EPA) and the General Services Administration (GSA) have increased budgets and revitalized green mandates to power the Administration's sustainable agenda, there are signs that the private side is getting on board.

With increased public and private commitments to green initiatives, awareness of sustainable design polices and practices have become paramount to the success of the green movement. Since the emergence of the green movement, sustainable design has remained a random compilation of national policy interspersed with local applications.

The Obama Administration is applying standardized third-party sustainable fundamentals to federal projects and carrying those fundamentals to state and local levels. Effective sustainable design addresses three basic concepts:
  • The reduction of negative factors on the environment
  • The reduction of negative health and comfort factors upon building occupants
  • The increase of building efficiency and performance
Like all federal agencies, the GSA is determined to minimize the bottom-line impact during the implementation of sustainable design for all the agency's projects. In the past, the private sector has been wary of the cost of green design and construction. GSA maintains that increased construction costs related to effective sustainable design are more than offset by the reduction in operating costs and specifically in reduced energy and waste costs.

To achieve cost-effective sustainable design, the federal government has set forth a six-step process that the Obama Administration hopes the private sector will utilize.
  • Site selection and preparation
  • Utilization of building operating systems that minimize the use of non-renewable products
  • Insistence on the use of sustainable building products
  • Address the preservation and conservation of water
  • Improve the building interior environment to the benefit of the occupants
  • Implement environmentally responsible operational and maintenance practices
Accordingly, the GSA has received a $5.5 billion budget allocation for green projects. The EPA has finally received supplements to its dwindling budget. The Agency's budget was trimmed each of the past 8 years, resulting in a 27% cumulative decrease.

The new $10.5 billion budget includes a $3.9 billion allocation for improvements to the country's water infrastructure. Specifically, the agency will address 1000 clean water projects and 700 drinking water initiatives ranging from, San Francisco to Chesapeake Bay and including major projects in The Great Lakes and Lake Champlain.

The acknowledged universal and primary consideration in sustainable design has become the carbon footprint. The recognition of the carbon impact offers sustainable designers tangible criteria upon which every product, every building and every green initiative can be evaluated and promoted. In fact, the future of sustainable design and the development of carbon regulation will not only drive sustainable design but will unify the private and public sector's sustainable focus.

Copyright 2009 - 2010 theLEED.com and Green Efficient. Article may be reproduced, unchanged, as long as it retains author information and linking.

Rick Walker is the CEO of Green Efficient. GreenEfficient is the leader in the LEED building maintenance and operations market. Primarily serving Texas, their LEED Accredited Professionals (LEED-APS) manage commercial facilities using their integrated services portfolio of LEED-compliant janitorial services, Integrated Pest Management services, HVAC maintenance, lawn care services, purchasing oversight, occupant training and USGBC submittal services. Offices in Houston, Austin, Dallas and Corpus Christi enable the most active Texas LEED construction markets to be covered by their specialty services. For information on LEED, green building and sustainable products, visit their blog: theLEED

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