Window Film versus Replacement Windows
Film Has Its Advantages
Since the early 1960’s energy saving
films have been used as a means to reduce building energy costs.
Today, energy saving films are increasingly being used worldwide
to lower building energy costs by reducing excessive solar heat gain
through windows. Customers are quickly learning that these films
are a cost effective option to other window alternatives.
An energy saving window film typically consists of a thin (0.025mm,
0.001 inch) polyester film substrate that has a micro-thin, transparent
metal coating applied to one side. This metal coating is applied
using vacuum-based technologies such as vapor deposition or sputtering.
A second layer of polyester film is laminated over the metal coating
to protect the metal. A scratch resistant (SR) coating is applied
onto the side of this laminated composite that faces the building
interior to protect the film during normal window cleaning. An adhesive
layer is applied onto the film side that faces the glass and is protected
by a removable release liner until just before the film is applied
to the glazing system. UV absorbers are added to the polyester film
layers, the adhesive layer, or both to protect from UV degradation.
Efficient Window Film Vs New Windows - Comparison on Performance
by a private contractor. Easier to read.
First you need to find out if you really need new windows.
Here are some questions for you, answer as if the cost wasn't
an issue: Read
Green Lodging News
States and much of the world, for that matter, have had so many
pressing issues to deal with that one—possibly
the most important one—keeps getting pushed under the carpet,
so to speak. That is water. It’s a green issue, a life
issue, a business issue—an issue that will impact hotels
and hospitality facilities throughout the world and one we are
all going to have to deal with eventually.
Consider the following:
• According to the
Center for Strategic and International Studies, a U.S. think
tank, water is a growing concern that is set to become the world
economy’s single most pressing resource crisis (emphasis
added) in years to come. That’s right: it is not oil, not
food, but water.
• The U.S. Environmental Protection Agency predicts that at least 36
states will face water shortages within five years because of a combination of
rising temperatures, drought, population growth, urban sprawl, waste or unwise
use of water, and excess.
• The United States uses about 150 trillion gallons of water each year,
according to the U.S. Geological Survey. That amounts to about 500,000 of water
per person per year.
• Water is going to get expensive in years to come. According to reliable
estimates, the price tag to upgrade and expand existing water infrastructure
will be about $300 billion over the next 30 years—money that will come
from increased fees for water.
So not only is water in increasingly
short supply, it is going to get expensive. And hotel properties,
which have made major inroads in areas such as reducing energy
and water use, especially in areas such as Las Vegas and other
western localities, are going to have to beef up their efforts
all the more, finding ways to use water more responsibly.
And one of the many ways this
will be accomplished is in cleaning. We often overlook the fact
that hotel properties use lots of water for cleaning. Using it
more carefully will not only help everyone address our water
challenges but will prove to be a major cost savings in years
to come for hotel owners, one that will continue paying dividends
as water is used more sparingly.
Where Do You
Use Water When Cleaning and how can you use it wisely? Read
Brass Lantern Inn
The Amee Farm
at Robinson Farm
Inn at the Mountain
The Canterbury House B&B
Black Bear Inn
Bolton Valley, 1-800-395-6335
CFL Quality, Technology Will
Continue to Improve in 2008
NATIONAL REPORT—Somewhere between 60 percent to 70 percent of U.S. hotels now use compact fluorescents (CFLs), one lodging industry expert estimates. There is no doubt that number is going to grow. On December 18, President Bush signed the Energy Independence and Security Act of 2007. Within that bill, there is a call for the phaseout, beginning in 2012, of the incandescent bulb. It is only a matter of time before CFLs totally replace the technology invented by Thomas Edison.
Given the inevitability of CFLs, where do they stand today in regard to pricing? Quality? Technology? What can hoteliers expect in 2008?
“What is really new is that prices are plummeting,” says Dan Bornholdt, president of Upland, Calif.-based Green Suites International, a distributor of TCP SpringLamps. “Prices for SpringLamps are under $3 per bulb now. Three years ago, they were $6 or $7.”
From a quality standpoint, CFLs have been highly reliable for the last three or four years, says Ray Burger, president of Pineapple Hospitality, Saint Charles, Mo.
“We will continue to see advancements in life expectancy—closer to the 15,000-hour mark,” says Burger, who sells energy-efficient CFLs from GE Lighting. “The product keeps getting smaller, but is maintaining the same quality.”
Smaller is better, says John George, marketing manager for CFLs for Osram Sylvania, Danvers, Mass. Osram Sylvania recently introduced the micro-mini Twist, what it calls “the smallest CFL on the market.” Twist is available in 13-, 20- and 23-watt models and is designed to replace 60-, 75- and 100-watt incandescent lamps. Twist offers a rated lamp life of 12,000 hours. The micro-mini measures 3.7 inches long, an inch shorter than a standard incandescent lamp, and features a color temperature of 3,000 Kelvin (K) and instant-on capabilities.
CFLs Becoming Less Hazardous
Osram Sylvania recently introduced the micro-mini Twist.
“CFLs are becoming even more environmentally friendly,” says Cameron Clark, merchant in the lighting category for San Diego-based HD Supply Facilities Maintenance, which sells a variety of fluorescent lighting products. “They are being made with less mercury and less lead. Many of the CFLs that meet Europe’s stringent Reduction of Hazardous Substance (RoHS) requirements will start making their way into the U.S. market. Hotels that use these will be able to distinguish themselves as being ‘more green.’”
Experts agree that while the technology to add dimmability to CFLs is improving, it is not yet where it needs to be.
“There are dimmable CFLs, but they do not perform even close to their incandescent counterparts,” HD Supply Facilities Maintenance’s Clark says. “Until they do, they will not be widely used or accepted. Manufacturers are continually looking for opportunities to improve their products in this regard, and some have delayed the introduction of new dimmable products until they are completely satisfied they will meet end user expectations. They also recognize that it is the greatest opportunity for growth.”
“Dimmability is still a barrier to overcome,” Osram Sylvania’s George says. “But every generation of products gets better. We have some products that are dimmable.”
Lamps that offer instant-on capability, like Osram Sylvania’s Twist bulb, are more available today even though, as Clark says, “CFLs still have a stigma of being too dim” because of the fact that many do not reach full brightness right away.
Green Suites’ Bornholdt says CFLs are now comparable to incandescents in regard to color quality. “Color-rendering index (CRI) quality has gone up in recent years,” he says. “They are all over 90 now and comparable to incandescents.” The best rating a lamp can have on the CRI scale of zero to 100 is 100.
New Three-Way Bulb Introduced
For those hotels that still have three-way fixtures, Alsip, Ill.-based Litetronics International Inc. recently introduced Spiral-Lite, a three-way CFL that offers the light output equivalent of a 50/100/150-watt incandescent lamp. Spiral-Lite provides up to 75 percent in energy savings and has a rated life of 10,000 hours.
Especially in guestroom applications, Pineapple Hospitality’s Burger says that more light is better than less light, especially at the bedside. Poor lighting is one of the best ways to negatively impact guest satisfaction.
“Hotels that have 100-watt incandescents in the guestroom will retrofit with a 20-watt CFL,” Burger says. “I recommend using at least a 23- or 32-watt CFL. A 32-watt provides light equivalent to a 125-watt incandescent.”
Mixing and matching CFLs is fine as long as the CRI reading is the same. Look at the package the CFL comes in. It will tell you the color temperature—2700K, for example. If you have questions about how to purchase CFLs, seek out an expert.
“Get them from a hotel supplier that truly understands the industry,” Green Suites’ Bornholdt says. “There are a lot of cheap products out there and you don’t want to mess with guests. You want to purchase the appropriate lamp for the right area.”
Litetronics International Inc.'s new Spiral-Lite, a three-way CFL.
HD Supply Facilities Maintenance’s Clark recommends taking a look at bulb life, lumen ratings and bulb shape.
“CFLs vary in life hours from 6,000 to 15,000,” he says. “If you are comparing by price, make sure it is apples to apples. A lot of packaging will say a CFL is a ‘100-watt replacement,’ but may only produce 1,600 lumens. Is that really enough light? Guest satisfaction scores are driving some hotels to use lamps with a minimum of 1,850 lumens. Twist shapes are best in shaded table, floor, or bedside fixtures. Because they do not have a cover over the tubes, they produce the most light.”
CFLs today offer so much upside—environmental benefits, long life, energy savings, and time and cost savings—that it is difficult to make an argument against using them.
“At this point in time, I cannot name any applications where they are not a good fit, except possibly some decorative lighting like chandeliers,” Pineapple Hospitality’s Burger says. “It would be hard to say you are a green hotel if you are not using CFLs.”
Glenn Hasek can be reached at firstname.lastname@example.org.