Rutland Architectural Blog - green

Green Roofing - Cool Roofs

Wed, 08 Jun 2011 12:55:15 GMT

Buildings, including residential, commercial, public, and industrial consume about one third of all energy use and about two thirds of all the electricity generated. Demand for electricity in the U.S. is increasing three times faster than new power plants and lines are being built to accommodate this rapidly increasing demand. Heating and cooling costs dominate most building's energy usage. A building's roof can have the greatest impact on the energy consumption by a building so any technological advances and improvements in roofing energy efficiency and performance will greatly affect both energy usage and consequent cost savings. Energy efficiency, durability, performance, sustainability, recyclability and life cycle costs are the focus of green building. Architects, builders and consumers have been changing the way they select building materials and designing buildings. They are increasingly shifting their focus to green building materials and energy performance with so called cool roofs becoming a key focus. Cooling costs significantly affect a building's energy consumption in most parts of the country and cooling is the predominant cost in the southern states. Cool roofs can save up to 40% in cooling energy as reported by several studies including Lawrence Berkeley Laboratory Heat Island Group. Cool roofs essentially are roofs which reflect much of the sun's radiation away from a building, employ above sheathing ventilation (ASV) cooling under the roof, readily emit any heat which they do absorb back away from the building and cool quickly at night. The less solar radiation and heat entering a building's interior space through the building's roof, the lower the building's cooling costs and energy use will be.

Net Heat Flux Through Roof (courtesy coolmetalroofing.org)

Cool roofs or reflective roofs can be comprised of a variety of materials including asphalt or fiberglass shingles, clay or concrete tile, EDPM rubber or PVC roofing membrane and variety of metals as long as they can reflect away much of the sun's radiation and readily release any heat they absorb into the atmosphere. White and the more lightly colored roofing materials are the most reflective but different material composition as well as special designed and engineered coatings or paints used on them can also greatly affect reflectivity and emissivity. Some of these new coatings or paints, especially those applied to newer more advanced metal roofing, incorporate special pigments designed to provide higher reflectance of solar infrared and ultraviolet radiation. Infrared and ultraviolet radiation can contribute even more to absorbed heat energy from the sun than visible light so any type of roofing material incorporating these special reflective coatings may outperform conventional light colored materials without them. Even darker colored roofing which incorporates these special IR and UV reflective coatings will outperform older non treated darker colored roofing saving as much as 25% in cooling costs.

Reflective Cool Metal Roofing Tile (courtesy coolmetalroofing.org)

Even with the advent of newer reflective coatings, white and light colored roofing still is the best performing cool roof providing the most energy and cost savings. Consumers, builders and architects however still like the aesthetics in having varied colors and materials and many still favor darker roofing hues. Ultra violet (UV) represents about 3% of the total solar energy striking the earth’s surface. Visible solar energy amounts to 40% while infrared (IR) energy accounts for the largest percentage 57% of the solar energy spectrum and is felt as heat. Thus roof materials which can be coated with newer UV and IR reflective coatings, even the darker shades of roof color, can now be much more energy efficient than in the past. Darker shades of roofing still won't reflect near as much of the visible solar radiation as lightly colored and white roofing. Though with engineered reflective coatings they will now block a high percentage of the UV and IR radiation which actually constitute more of the solar energy radiation and heat gain than visible solar energy. In addition to solar reflectivity, heat emissivity of roofing materials must also be considered as a large factor affecting building energy usage and possible contribution towards heat island effects. Any solar radiation which is not reflected by the roofing surface is then absorbed, converted or transferred to heat energy and some of this heat can conduct and radiate down into the interior building space affecting cooling costs. If the roof material has good emissivity much of this heat can re-radiate back to the sky in the form of IR energy especially cooling off during the night and there will consequently be less heat build up. Any concentrated heat build up, especially in tight grouped urban areas leads to heat island effects where temperatures in the air above these heat islands can be up to 12 degrees hotter than normal, leading to higher air conditioning costs, higher use of energy and higher levels of ozone and smog.

Atlanta at Night Thermal (Blue=cool, green=lukewarm, red=warm, white=hot)

In addition to emphasizing high solar reflectance and emissivity properties, roofs can additionally be kept cooler, limiting or preventing heat gain or heat flux down into a building' interior space below, by promoting convection cooling underneath the roof material using above sheathing ventilation (ASV). Heat emanating from the underside of the roofing can be removed using convective air flow (balanced ventilation) moving from soffit vents or eaves up to and out a ventilating roof ridge cap. Testing at Oak Ridge National Laboratory showed that by employing the natural convection of heated air below the roof covering, temperatures in an attic space are reduced. Air enters at the eave, is heated by the roof, and because hot air rises, it is naturally drawn up and vents to the outside. This natural convection controls heat gain and reduces the temperature in the
attic below. The Oak Ridge National Laboratory study found that dark-colored metal-shingle roofs using above-sheathing ventilation had similar heat energy flows compared to their lighter cooler colored counterparts. About 30 percent of measured reduction in heat gain was contributed by ASV. When a cool reflective roof surface was used with ASV, an additional 15 percent reduction in heat gain was achieved for 45% total. The improved summer performance of cooler roofs coupled with the reduced heat losses during the winter show cool roofs can both reduce energy usage in summer months while negating any supposed heating penalty in cooler months or northern heating dominated climates.
* (see http://www.metalconstruction.org/pubs/pdf/ORNL-TM-2006-9.pdf)

A convective air space below the roofing material can be easily set up by using a batten, cross batten or metal purlin framework on top of roof sheathing or a roof deck, on which sturdy roofing panels can be attached. Less sturdy roofing material can employ a 1 1/2" metal roof deck or else just a purlin spaced layer of OSB below the existing roof sheathing. Even darker roof materials such as weathered bare copper which does not have a great solar reflectance index (SRI), can provide good to outstanding energy efficiency results with the use of either an underneath or above sheathing ventilation approach. Additionally winter or cold weather heating performance is improved with the use of below or above sheathing ventilation as that convection air space between the roof material and lower roof deck or sheathing further acts as an insulative layer and helps to prevent heat loss and condensation. Ventilated cooled roofs work great and are energy efficient in any climate. They tend to last much longer too with less heat degradation.

Batten - Cross Batten Above Sheathing Ventilation (ASV)

ORNL Copper Roof Ventilation Test (images courtesy CDA at copper.org)

* These test results reflect using a 1½” fluted metal roof deck, ¾” OSB (plywood would work just as well), underlayment and red rosin paper underneath a standing seam copper roof. The use of a fluted metal roof deck is optional; similar results can be obtained by using other designs that provide an air space below the deck. The test roof had a 4/12 slope and faces south. The ventilated copper roof system was compared with a control roof of typical black asphalt, a typical non-ventilated copper roof assembly and two very good examples of above-the-sheathing, ventilated stone-coated steel roofs using special Cool Roof reflective coating colors. The graph above shows the ceiling heat flux crossing the attic floors of the respective attic assemblies. The light gray stone-coated cool metal roof (SR246E90) dropped the ceiling heat flux by roughly 29% of that measured for the asphalt shingle roof (SR093E89). The copper roof with the fluted metal deck further dropped peak ceiling heat flux an additional 23% of that for the coated steel shingle roof, bringing the total reduction for the copper roofing system to 50% of the asphalt control. Peak heat flux dropped an additional 1.5 Btu per hour per square foot for the copper roof as compared with the stone-coated metal roof. These results show clearly that a vented copper roof assembly will greatly reduce heat gain resulting in lower energy costs for the structure. Further, it dispels the notion that copper roofing must have high reflectance and emissivity in order to be effective in saving energy. * See Copper Roofs Are Cool

Cool roofs with their large energy saving and cost saving benefits can be realized by employing light colored roofing materials with very good solar reflective properties or roof materials using special engineered reflective coatings or most any type of roofing utilizing balanced and well functioning below or above sheathing ventilation (ASV). White or lightly colored highly solar reflective roofs employing ASV still provide the greatest energy and cost savings. It must also be stated that using higher R-values for ceiling insulation or better insulation below the roof in structures without attics will also control or limit heat gain into a building interior and consequently also lessens the heat gain differential using less reflective roofing materials or darker roof colors. Adding a radiant barrier and insulation board underneath your lower roof deck and convection space can further prevent the intrusion of heat gain from roofing into attic and living space. Additional attic vents, gable vents, dormer vents and roof vents will also reduce heat gain from roofing. More sloped roofs also perform much better and have less heat gain than flat or low sloped roofs and should be considered for any new construction. Some buildings with flat or low slope (<2:12) low-rise roofs may also be candidates for retrofitting them with a lightweight sloped roofing structure framework when re-roofing them especially with lighter weight roofing such as metal roofing. That framework could simultaneously also provide a convective roof cooling space underneath the new roofing. Resulting lower energy costs, less maintenance and no roof replacement for 50 years or longer could provide a good return on that investment. The bottom line is that when evaluating roofing energy efficiency, heating and cooling costs, looking only or primarily at roofing material properties such as SRI, reflectivity and emissivity is not sufficient to see the whole picture. You have to look at what effect the entire roofing system and structure has on heat gain, cooling load, heat loss and energy usage of the building and it's systems. The performance of the whole system must be examined in totality when the end goals are reducing energy costs and going still further, in achieving the most eco-friendly green buildings. In a subsequent blog article, the green building aspects of roofing will be discussed in more detail. Then again there are specialized roof systems such as KME's Tecu Solar System copper roofs below which are expressly designed as efficient solar heat collectors for heating a building's interior space, it's hot water and even swimming pool. Where do such technically advanced roofs fit into energy efficient roofing guidelines, requirements, ratings and green design certification?

Copper Solar System Roofs (photos courtesy KME.com - Italy)

Copper Home Decor - Elegant, Healthy, Green

Wed, 20 Oct 2010 14:23:59 GMT

Copper home decor is unmistakably elegant, warm, inviting and luxurious while copper decor and copper accessories are also the healthiest choice due to copper's germ killing, antimicrobial power and copper additionally is a substantial contributor to eco-friendly green design as well. Copper decor has been around forever but is becoming increasingly fashionable today and part of a natural trend in home architecture and interior design.

Copper Bath Tub (Juliana)

Copper Bathroom Sink - Copper Faucet - Handle

Copper Sink and Stonework (Milestone)

Copper Shower Enclosure & Pan - Indoor and Outdoor
(Indoor Copper Shower courtesy ExtremeHowTo.com - Frigo Design)

Copper Kitchen Sink

Copper Stove (La Cornue)

Copper Range Hood (Rutland Copper Kitchen Hoods)

Copper Kitchen Island Bar Facing (Chris Lemmen)

Copper Sinks - Copper Counter Tops

Copper Kitchen Cabinet Doors (Ikea Rubrik)

Copper Furniture (Rainbow Copper Southwest)

Copper Door Entryway (Saxony)

Copper has traditionally been used in home design for its aesthetic qualities of warmth, elegance and unique timeless beauty. Copper and most copper alloys have warmth and elegance compared to the more institutional look of say, stainless steel. Not everyone knows about the tremendous antimicrobial, antibacterial, germicidal power of copper or about copper being a very green material. As more people become aware of these uniquely copper attributes, the demand for copper products will skyrocket. Already the copper industry has been seeing increased demand for copper products over the past eight years, with a large increase in the breadth of copper products as well as the number of copper product manufacturers which supply them. Copper is the only natural material which will kill harmful bacteria, germs, fungus, mold, contagious pathogens and deadly viruses which come in contact with the copper surface. The U.S. EPA has uniquely approved copper as a germicidal agent and numerous studies have proven copper's amazing antibacterial quality. Copper starts killing germs, bacteria, viruses immediately and they are completely eliminated within hours with tremendous health benefits throughout the home, especially kitchens and bathrooms. For example E-Coli survives on stainless steel for up to 34 days while on copper surfaces it is 90% eradicated within 90 minutes, 99.9% within 2 hours and completely within 4 hours.

Copper is also one of the greenest materials ever known to man. Copper can be recycled 100% and in fact most of the copper used today in the U.S. is recycled with 4/5 of the copper ever mined around the world still in use today. Yet, we haven't even come close to tapping into all the copper deposits around the world. Copper is also one of our most durable materials and retains its excellent corrosion resistance, anti-fungal, antimicrobial and weatherability properties throughout it's extremely long life. At the end of it's long life or present application, all the copper can be reclaimed and used again and again somewhere else. Copper besides being the greenest metal is also one of the easiest metals to work with, being very malleable and can be textured, hammered, quilted, patinated, polished, rubbed and fired, giving copper the ability to evolve into many textures, hues, designs and styles, which will fit into any style of home decor, interior design or architecture.

Copper Garage Door (Windsor)

Roof Domes

Wed, 08 Sep 2010 19:03:33 GMT

Roof domes are one of the most visually striking and appealing architectural structures around. Domes have been around for thousands of years. Ancient cultures constructed mostly corbel or arched dome dwellings using locally available materials such as mud, clay or adobe. The earliest discovered domed structures may date from around 15,000 to 20,000 years ago in the Ukraine, constructed from mammoth bones and tusks. In ancient times people lived in such domed structures and in more modern times Native Americans constructed wigwams from curved branches and hides and much farther north, igloos from compressed blocks of snow. Pygmies in Africa used mango leaves to cover their similar dome shaped structures. Ancient domes discovered in the Middle East were used for modest structures, such as tombs. The early Romans while constructing smaller domed structures for villas, palaces, baths and tombs also constructed very large, advanced true domes over large interior spaces such as temples and public buildings. True domes are traditionally considered to be a self-supporting hemi-spherical shape structure or roof. Half a hemispherical dome is called a semi-dome and other variations of that are generally called false domes. All of the different types of domes essentially still have a curving or rounded top. Over hundreds of centuries domes have been constructed from a large variety of building materials including mud, clay, stone, brick, wood, concrete, metal, glass and in recent times even plastic. Next we look at some early, historic or notable domed buildings and feature especially those with copper roof domes.

Pantheon - Rome, Italy
(photo credits: courtesy of uncp.edu/home/rwb/lecture_med_civ.htm)

While much earlier domed structures have been discovered as noted above, the Pantheon in Rome, Italy was one of the earliest buildings with a large roof dome, that is still in existence today, situated above ground and structurally stable. The Pantheon is considered by many to be the grandest dome in existence and still nearly as magnificent today as when it was constructed 19 centuries ago. The Pantheon at 142 feet - 43.3 meters inside diameter and height, was the largest dome ever built for about 1700 years and is still the world's largest un-reinforced concrete dome in existence. The Pantheon, originally built in 27 BC, was destroyed in both 80 AD and 110 AD and rebuilt both times. From it's last completion in 126 AD it still stands today as a monument to grand architecture. The Pantheon's concrete dome used to be covered with copper plates which in turn were finished with copper or bronze tile. The Pantheon, originally a pagan temple to all the Roman Gods, was taken over by the Catholic Church and consecrated by Pope Boniface IVI in 609 AD as a church dedicated to St. Mary and the Martyrs and informally known as Santa Maria Rotunda. The beautiful copper tiles adorning the dome's exterior were stripped off and stolen by Constans II in 663 AD to be carted back to Constantinople. Then almost a thousand years later, Pope Urban VIII had the original copper plating removed, yielding about 200 tons of copper sheets and 4 tons of copper nails, which were subsequently used mostly to construct cannon or bombards and remaining for assorted church projects. Large amounts of fine marble on the Pantheon's exterior were also unfortunately removed and used elsewhere over the centuries.

Florence Cathedral - II Duomo - Florence, Italy
(photo credits: MarcusObal - CCbySA, courtesy en.wikipedia.org)

The largest roof dome built in Western Europe since the Pantheon is Brunelleschi's octagonal brick roof dome for the Florence Cathedral or II Duomo in Florence, Italy, completed in 1436. This double dome, with seperate inside and outside shells, is still the largest masonry dome ever built, constructed with bricks and mortar, 42 feet from face to face. Duomo of Florence has eight vertical stone ribs with red tile roofing in between. Slightly smaller in diameter than the Pantheon and Florence Cathedral is the dome at St. Peter's Basilica in Vatican City, Italy. This double walled dome with inner hemispherical dome and outer vertically ovoid shaped dome, was completed in 1590 and remains today the tallest dome in the world, rising to a total height of about 452 feet from the ground. The drum or base of the dome alone is over 65 feet tall rising to 240 feet from the ground. The style which St. Peter's Basilica introduced became known as Baroque architecture and had a large influence on subsequent designs and buildings. St Peter's Basilica influenced other famous domed buildings, including St. Paul's Cathedral in London, which in turn heavily influenced the United States Capitol Building dome, which similarly inspired many subsequent state capitol domed roof buildings. Mounting a cupola or lantern on top of the dome became popular in medieval times to admit light, provide venting and also serve as added visual interest on both the outside and inside.

St. Peter's Basilica - Vatican City - Rome, Italy
(photo credits: Wolfgang Stuck, courtesy of commons.wikimedia.org)

Modeled after St. Peter's Basilica in Rome, the Basilica of St. Josaphat shown below is a Milwaukee, Wisconsin landmark, featuring one of the largest copper dome roofs in the world and is also listed on the U.S. National Register of Historic Places. Another Basilica, the Basilica of the Sacred Heart in Brussels, Belgium had it's initial construction begin in 1905, then was interrupted by two world wars and was not completed until 1969. This church with it's sturdy brick and concrete reinforced structure, features a large copper roof dome and two slender towers with smaller copper roof domes. A landmark in the Brussels skyline, the apex of it's green patinated copper dome roof rises up to 292 feet - 89 meters above the ground.

Basilica of St. Josaphat - Milwaukee, Wisconsin
(photo credits: Sulfur - CCbySA, courtesy en.wikipedia.com)

Basilica of the Sacred Heart - Brussels, Belgium

(Markus Koljonen - CCbySA, courtesy commons.wikimedia.org)

For thousands of years, architects have designed domes made from a wide variety of materials and colors. No other style of roof creates such a feeling of openness, spaciousness and attractiveness. Copper has been the metal most frequently specified by architects. Copper domes make a most memorable and visually arresting statement in any building design, whether it is governmental, religious, commercial, residential, cultural, industrial or institutional. Copper roof domes add an unsurpassed air of richness, sophistication and natural beauty, while also providing more than a century or even centuries of durability along with very low required maintenance. A sampling of buildings with copper dome roofs from around the world continues below.

Berliner Dom Am Lustgarten - Berlin, Germany

(photo credits: Von Schrader Bernd, courtesy fotocommunity.de)

Opera Garnier - Paris, France

(photo credits: courtesy wikimediacommons)

Perth Museum and Gallery - Perth, Scotland

(photo credits: Paul McIlroy - CCbySA, courtesy geograph.org.uk)

Waterfront Hall - Belfast, Ireland (large copper saucer dome)

(photo credit: Architect Robinson and McIlwaine, courtesy copperinfo.co.uk)

Macon Auditorium - Macon, Georgia (largest true copper dome)

(photo credit: Architect Robinson and McIlwaine, courtesy copperinfo.co.uk)

While domes have historically been seen on government capitols, courthouses, churches, temples, museums, auditoriums and stadiums, roof domes have also found favor on many types of commercial buildings including hotels, resorts, pavilions and farm structures and ever increasingly in residential architecture as well. Roof domes continue to be featured and incorporated into modern architectural design as dome roofing provides both functional and visual benefits. Roof domes provide a feeling of spaciousness, allow high sculpted ceilings and a distinct feeling of sophistication, elegance and luxury. Dome roofs will elevate and distinguish a building's appearance and directly increase it's value as well. Many different styles of roof domes can readily be adapted and incorporated into modern homes and commercial properties of quality and distinction.

The Rainbow Hotel Domes - Torquay, Devon UK

(photo credits: Derek Harper, CC-by-SA courtesy of geograph.org.uk)

Late 1800's Dome Roof Home - Logansport, Indiana

(photo credits: labontebuddy43, courtesy esperanto.wunderground.com)

Rancho Adolfo Camarillo - Gazebo Copper Roof Dome
(Salvaged from Mary Magdaline Church)
(photo credits: CA1S.org, courtesy pbase.com)

Residential Copper: Dome Roofs, Dormer Vents, Flashing

(photo credits: Union Jobs Clearinghouse, unionjobs.com)

Copper Dome Roof - Domical Vault - Rutland Construction

Sandals Resort Caribbean - Dome Roof Work by Rutland

Residential Copper Dome Roof - Construction by Rutland

Copper Dome - Hexagonal - Under Construction - Rutland

Frame Construction for Copper Tile Dome Roof - Rutland

Copper Polygonal Roof Dome - Pineapple Finial - Rutland

Conical Roof - Large Copper Dome Roof - Pyramidal Roof
(all constructed by Rutland Architectural Copper Work Craftsmen)

Rutland Architectural Copper will custom build or fabricate any style of metal roof dome, including hemispherical domes, semi-domes, arched domes, corbel domes, polygonal domes, octagonal domes, hexagonal domes, ovoid or oval domes, saucer domes and other dome variations to architect's, builder's and customer's specifications. Rutland fabricates roof domes from heavy weight copper panels, custom copper tile and copper sheets. When a copper tile roof dome is desired, Rutland will construct sturdy framing including a layer of waterproof membrane over the sheathing. Rutland can custom build roof domes from a variety of metals including pure or coated copper and produce polished, very strong TIG welded joints or seams for a very attractive seamless look. Rutland also fabricates ancillary roof dome accessories such as cupolas, finials and vents. Copper is the ideal metal for roof domes and other architectural metal structures due to copper metal's excellent workability, very long life, durability, natural corrosion resistance, weatherability, environmentally friendly, recyclability, green building material, sustainability, natural beauty and timeless elegance. Rutland Roof Domes

Copper Architecture Awards

Sun, 22 Aug 2010 16:30:02 GMT

Each year the North American Copper in Architecture Awards acknowledges and spotlights selected North American building projects for innovative and exceptional use of architectural copper. The architectural copper awards program highlights a wide scope of projects which highlight craftsmanship, attention to detail, and architectural vision. Copper has historically long been used for its great natural beauty and finish, it's durability and performance, copper's long service life and recyclability. Copper is still today a superior building material and also one of most eco-friendly and green building materials, which is being utilized and adapted for an ever wider variety of contemporary and cutting edge building and architectural applications. Three of the twelve copper in architecture award winners are described and shown below.

Waipolu Gallery and Studio, Oahu, Hawaii
(photo credits Nic Lehoux, Vancouver, BC - Courtesy Copper.org)

The Waipolu Gallery above uses copper wall cladding and copper roofing which were chosen for this project as copper will perform well over a very long time and with very little maintenance in a very corrosive ocean side location. Copper's beauty and fluidity compliment the modern art contained within the structure. The copper provides a softer contrast to the other more linear materials used. Excellent workability or malleability of copper was advantageous allowing easy re-working or shaping on site. The building architects also like there will be changes in copper's patina or color over time, producing an ever evolving work of art. The studio with it's stainless steel, glass and concrete linear space is joined by a floating glass bridge to the copper clad gallery. The glass bridge rises above a limestone staircase which connects the building's three levels.

Mark Olsen Residential Project, Holladay, Utah
(photo credits David Daniels of David Photography - Courtesy Copper.org)

The Mark Olsen Project exhibits excellent old world craftsmanship, with a copper roof and other architectural copper features such as copper finials, copper gutters and ornamental downspouts with copper conductor heads, copper crown molding, fascia and soffit, copper chimney top shroud and extended copper window box. This stately home has exquisite detailing and exudes quiet elegance from it's naturally weathered copper features. 16,000 pounds worth of hand crafted architectural copper work are used for this home's architecture. The copper roof is comprised of diamond shaped interlocking copper shingles, copper ridge vents and flashing. Of note, no sealants were used, only traditional craftsmanship and installation techniques were employed along with some soldering work on the copper gutters providing very long term durability with little to no maintenance required.

Cathedral of St. John the Baptist Charleston, SC
(photo credits Steven of the Churches of Charleston Project
& Jeni Rone of Sea Star - Courtesy Copper.org)

One hundred fifty years in the making, the Cathedral of St. John the Baptist in Charleston, South Carolina has at long last been restored after being completely destroyed by fire in 1861. A soaring neo-gothic style copper spire, which had long been planned, was finally realized this past spring. The stunning beauty of the copper spire with it's gold leaf finished copper cross can be seen across the Charleston skyline and out to Sullivan Island. The cathedral's tower was finished with a stone veneer and at it's top there are four copper clad archways with copper torch finials. The copper spire with gold-leaf copper cross finial is perched on top at center of the copper arches. The 200 square feet of gold leaf which covers the cross will last at least 40 years without touch-up while the crowning copper art work comprised of arches, finials, spire and cross at the peak of the cathedral will last and stay beautiful for generations to come.

Green Building Materials - Copper - Natural Stone

Fri, 23 Jul 2010 13:06:54 GMT

Copper and natural stone make ideal green building materials for both the exterior and interior of all buildings, including commercial, public and residential buildings. What is green building? Simply put green building means the construction, renovation or remodeling of houses, public and commercial buildings so they are more durable, environmentally responsible, energy efficient and healthier for their occupants throughout the building's lifespan or life cycle. This is basically accomplished by designing and constructing buildings that last a long time, are more efficient, use less energy and water and are healthier spaces to occupy and live in. Historically, well designed and constructed buildings have delivered short term goals of utility, economy, durability and comfort. Green building really just takes the next step in building even better homes, commercial and public buildings by improving on their long term durability, quality, efficiency, high performance, human health, environmental impact, life cycle cost and sustainability. A building's total life cycle cost includes it's design, siting, construction, operation, maintenance, repairs, replacements, renovation, deconstruction, salvage, disposal and recycling. Green building materials typically include: renewable plant materials such as quick growing straw, bamboo and wood from sustainably managed forests; materials which are non-toxic, reusable and recyclable such as dimension natural stone, recycled stone and recyclable metals. Eliminating construction materials and interior finishes which have emissions of toxic gases such as formaldehyde and VOC's improve a building's indoor air quality and is healthier for occupants. Moisture control and eliminating biological or organic sources of mold, bacteria, fungi and pathogens will also promote healthier air and living space. Implementing green building techniques reduces negative impact on human health and the environment during multiple phases including the production of building materials, building construction, occupation, building operation and maintenance of a green design building. While many green buildings cost a premium which averages just less than two percent initially, green building will typically yield a financial return or savings of over ten times that initial premium during the life of the building. Green building simply saves money, protects the environment and provides healthier living spaces. The strong case for green building is abundantly clear considering the positive impact on human health, our environment and our finances.

Copper Mining Quarry and Natural Stone Quarry

Natural resources such as copper and natural stone are mined or quarried and minimally processed natural materials as opposed to artificially manufactured materials, faux or simulated materials. Pure copper and natural stone share many green building material qualities: they are mined or quarried directly from the earth and minimally processed using environmentally conscious techniques; all waste material can be used or recycled; they require no external finishes or chemical treatments; they generate no harmful emissions or byproducts; they do not promote growth of mold, germs or other harmful pathogens; they are healthy, hygienic and non-toxic; they promote more even indoor temperature and healthier indoor air quality; they are moisture and corrosion resistant; they weather extremely well naturally; they are not flammable materials; they are not damaged by water; they do not break down, decompose, decay or deteriorate like previously living organic materials and most man made materials; they age beautifully and gracefully as natural patina formation, discoloration, pitting, dents or cracks enhance character and natural appearance; they require little upkeep or maintenance; they are extremely durable, outlasting the owner's lifetime and the building's lifespan; they are salvageable, reusable, absolutely recyclable and retain their value extremely well. Copper and natural stone are two of the oldest, most durable building materials used by mankind and countless buildings and structures incorporating natural stone and copper architecture stood for centuries. Copper and natural stone were used because they were abundant resources found directly in the natural environment, required minimal processing and were fairly easy to work with. Today spending even a little more for natural, earth friendly, durable materials has proven cheaper in the long run because they won’t have to be replaced as often, maintained as much and can be recycled. Considering on building materials life-cycle cost, rather than focusing solely on initial cost can yield some eye opening results.

LEED Gold Penn State SALA and City Center LEED Gold in Las Vegas

We spotlighted the Penn State Sala building above in a previous blog for it's heavy use of copper (over 80,000 pounds) helping it achieve it's U.S. Green Building Council Gold LEED certification and remarkably at no additional cost over conventional building. The recent City center in Las Vegas also received LEED Gold certification by the U.S. Green Building Council for six of it's buildings, including Aria, Vdara, Crystals, Mandarin Oriental, Las Vegas and Veer Towers. That made City Center one of the largest sustainable green building developments in the entire world. The immense project entailed collaborative involvement by eight renowned architecture firms. Green building material selection, included extensive use of natural stone for interior spaces and exteriors of the buildings. While other green materials were considered, natural stone provided the architecture with a natural textured, tactile feel and the richness, warmth, comfort, earthy look and colors they sought. The Aria building encompasses 70,000 square feet of natural quartzite stone cladding in a varying thickness mosaic pattern on it's exterior walls. Inside the buildings, different uses of natural stone were employed including a mosaic stone, stacked stone, flat honed or polished stone, to provide contrasting looks and changes in texture. Everyone involved with the project was happy with the results and the buildings continue to garner positive feedback and compliments. See additional pictures of City Center and information on it's green building features in the Stone World article Stone Contributes to LEED Certification for New Las Vegas Landmark

Architectural Copper Work and Natural Stone Wall Masonry

View additional natural stone pictures of genuine natural stone installations at the Rutland Minstone website, encompassing natural stone tile flooring, natural stone walls, natural stone patios, garden stone paving, landscaping, slate roofs and stone columns. Slate, travertine, quartzite, limestone, sandstone and flagstone tiles, wall veneer panels and pavers are some of the featured natural stone applications. With large advances in mining, processing and shipping technology, use of natural stone has grown from use primarily only in major buildings and large expensive estates to becoming a staple in homes and buildings of every size and budget today. There has been a drastic reduction of genuine stone prices over the last decade or so. Around the world there is now an enormous inventory of natural stone and even more is being discovered every day. A combination of many technological advances and this very plentiful supply have combined to make natural stone very affordable and price competitive with man made materials, while having better green building characteristics and life cycle cost benefits. People have embraced the beauty and elegance of this unique, all natural material for their floors, wall coverings, kitchens, baths, outdoor landscaping and paving. Consumers prefer natural stone because it is the real thing which can not be duplicated in a laboratory or factory but is nature's very own genuine product. Natural stone is created by nature in many thousands of color variations with no two natural stone pieces exactly the same. Nothing approaches the uniqueness, durability, wide applicability of genuine natural stone and pure copper. From the beginning of time to far into the future, copper and natural stone have always been excellent green building materials while having natural beauty, grace, warm richness and timeless elegance.