Tag Archives: building technology

Hiding Ducts in Conditioned Space

Ducts, Furnaces, & Air Handlers Belong Within Conditioned Space
Ducts, furnaces, and air handlers belong inside a house’s conditioned space. The best locations for ducts are insulated basements, sealed crawlspaces, or unvented conditioned attics. If placing ducts in these locations won’t work, they can also be installed in open-web floor trusses (in a two-story house with a centrally located mechanical room) or in some type of soffit, dropped ceiling, or chase. Continue reading

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Whole-House Fans vs. Powered Ventilators: What’s the Difference?

Whole-house Fans
A whole-house fan is an attic-mounted fan that exhausts air from a home at night, when the heat of the day has passed and the outdoor temperature has dropped enough to feel comfortable. The main advantage of using a whole-house fan instead of an air conditioner is to save energy. A whole-house fan usually draws between 200w and 700w, in contrast to a central air conditioner, which draws 2000w to 5000w. Continue reading

The Advantages of a Smart House

Smart house technology concept with centralized control of lighting, heating, ventilation and air conditioning, security locks and video surveillance, energy savings and efficiency.

So-called smart homes take advantage of automation technology and modern building techniques to give homeowners a new level of control. Smart homes may be built from scratch with automation as a key design goal, or constructed from existing homes during a major renovation. In both cases, smart homes offer several advantages over conventional homes. Continue reading

What is a Plyscraper?

Ever since the 10-story Home Insurance Building in Chicago was called the first “skyscraper” in 1885, architects have been striving to create ever-taller buildings. Ten stories quickly became 20, 20 became 50, and on and on. In 2009 the Burj Khalifa in Dubai became the world’s tallest building, with its 154 floors towering above ground level.

So why is the mayor of Portland, Oregon, calling a modest 12-story tower set for completion there next year “a true technological and entrepreneurial achievement?” It’s not the affordable housing the building affords, nor its dozens of bike racks or even the roof farm that has Ted Wheeler gushing. It’s that the Framework apartment building will be made almost entirely of wood. Continue reading

Self-cleaning Windows

What is self-cleaning glass?
The first thing to note about self-cleaning windows is that they’re not, in fact, “simple pieces of glass.” They have a very thin outer coating of titanium dioxide, a white, powdery titanium compound best known for giving that dazzling gleam to paint, toothpaste, and all kinds of other bright white things.

Now if titanium dioxide is, essentially, the white in white paint, it might seem ludicrous to splash it all over a window—something we naturally want to be transparent. But the coating really is ultra-ultra thin. We’re talking about putting a layer 10–25 nanometers deep on glass that might be 4mm thick, which is like sitting a dime on top of the Empire State Building! It reduces the light passing through the glass by no more than about 5 percent. Continue reading

What You Need to Know About Mold

Too much mold can affect the health of you and your family. In addition, mold can damage or destroy building materials such as wood or gypsum board in our homes. This article answers your questions about mold, what it is, where it grows, how it spreads, how it can be prevented. Continue reading

Choosing Your Windows 101: Frame Selection, Glass Options, & Coatings

Windows come in a number of different frame and glazing types. By combining an energy-efficient frame choice with a glazing type tailored to your climate and application, you can customize each of your home’s windows.

Types of Window Frames
Improving the thermal resistance of the frame can contribute to a window’s overall energy efficiency, particularly its U-factor. Continue reading