Environmental stress testing reveals the reliability of heavy-duty construction equipment.
Construction Materials & Methods
Ceiling fans represent an old-fashioned but effective approach to comfort and efficiency. Here we discuss the more technical aspects of ceiling fan selection and placement and installation tips and take a look at the most advanced, energy-saving models available today.
Ceiling fans are an old-fashioned but effective and efficient approach to comfort.
Ever since one of our ancient ancestors picked up a palm leaf and used it to stir a cooling breeze, fans have played an important role in keeping us comfortable. From simple, hand-powered devices used to content Egyptian pharaohs, fans have evolved into automatic, efficient, climate-control appliances. Developed by father John and son James C. Hunter in 1886, the mechanical ceiling fan remains the most successful improvement. Even with the advanced climate control systems available today, ceiling fans provide an economical means of providing indoor comfort. As a supplement to central air conditioning, a ceiling fan can save 10% to 15% on summer cooling costs. In certain circumstances, a ceiling fan can help to balance home air temperatures for more efficient heating.
This second of our insulated siding articles focuses on the technical aspects of using this exterior cladding as an insulation product. We will also touch on some relevant details regarding its installation.
The industry definition of insulated siding, or IS, is an exterior cladding product with a significant thickness of insulation permanently adhered, so that both cladding and insulation are installed in one step and as one product. This is currently limited to some aluminum and many vinyl siding products. (There also exists a line of contoured foam insulation manufactured as either a universal backing, or a product-specific backing for several types and brands of solid plank siding, including fiber cement. We will discuss this material separately.)
Manufacturers are updating their product lines with renewable, plant-based materials.
Throughout the last decade, flooring manufacturers have embraced sustainability as a catalyst for reducing waste; improving manufacturing processes; and developing innovative, more environmentally friendly flooring options. As a result of these efforts to minimize environmental impact, the standard synthetic raw materials utilized in the flooring of years past are now being replaced (or used in conjunction) with unconventional, biobased plant materials, such as corn starch, soybean oil, and castor bean oil.
Welcome to the On Site channel’s Construction Administration Column. Here, David A. Todd gives his recommendation on the Engineers Joint Contract Documents Committee (EJCDC) General Conditions clause for weather.
In my last column, I dealt with an issue concerning delays for weather. The answer I gave had to do with the weather provisions in the 2002 edition of the EJCDC General Conditions. Those provisions are:
Installing insulated siding on an older home may be the best way to up its R-value.
My first encounter with insulated siding (or IS as it’s known in the trades) came while visiting the Raritan Inn, a bed-and-breakfast in New Jersey that was remodeled by a pioneer in energy-efficient and innovative "green" construction, Bill Asdal. The Raritan Inn serves as a research center and a showpiece of deep-energy remodeling. In 2003, Asdal, in partnership with the Department of Energy (DOE) and the National Association of Homebuilders (NAHB) Research Center, pioneered the first net-zero energy remodeling project in the United States. The structure was clad with insulated siding in an effort to achieve the highest R-values possible within the limits of remodeling an 18th century structure. What I noticed was not the R-value but the aesthetic quality. The siding had a clapboard profile and it lay flat, lacking the usual telling concave cup of most vinyl siding.
By implementing BIM, Habitat for Humanity of Metro Denver found a way to shorten construction schedules as well as to achieve better communication with volunteers and partner families.
BIM improves efficiency and thereby improves the bottom line: Companies that were early adopters of BIM have been educating us on this fact for several years. What may not be as immediately apparent is that improving efficiency can sometimes improve more than just the bottom line. When non-profits implement new technologies with the result of achieving greater efficiencies, it can enable them to improve the lives of more people -- and do so more quickly -- than was ever before possible.