Medical Construction & Design

JUL-AUG 2015

Medical Construction & Design (MCD) is the industry's leading source for news and information and reaches all disciplines involved in the healthcare construction and design process.

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A diagonally folded, horizontal façade was determined to provide a solution that maximized glazing and mitigated solar gain. Glazing with a low SGHC and a high exterior refl ectivity were chosen for the west façade to reduce solar gain. The cooling demands are reduced because of this and projected operating costs are lowered. Additionally, the waiting spaces along the west side of the building have a higher level of thermal comfort for the patients and visitors. Fifty percent of the glazing on the west façade slopes upward toward the direction of late afternoon sun. The other half of the exterior wall is sloped downward away from the sun, to ef ectively be in shadow the majority of the day. The design team performed foot-candle analysis to further determine the exact specifi cation of glazing adjacent to the waiting spaces in the building. Several iterations of illuminance studies, carried out with dif erent glazing performances, allowed greater accuracy in the glazing selection. The team looked at several options, which would reduce the intensity of solar gain while maximizing visible transmitted light. The net result was a reduction in direct artifi cial lighting. When this building is complete in 2017, the team intends to compare actual energy costs at dif erent times of the year to learn more about the performance of the building and the materials specifi ed. Anthony Caputo, LEED AP, Lean Six Sigma Green Belt, is a design practice leader at Array. building envelopes Spotlight For more information on these products, visit Modular Metal Panel System Offers Flexible Design Possibilities Centria's Intercept Modular Metal Panel System offers a clean, contem- porary aesthetic that can be custom- ized to meet a wide variety of complex applications. Panels can be confi gured in almost limitless ways and include op- tions such as formed corners, wing walls, soffi ts, fascias and curved radial wall sections. Panels also can be custom-fabricated in dif- ferent shapes and sizes to suit specifi c project needs. Installed using extruded clips, the system virtually elimi- nates exposed fasteners. The unique horizontal joint design provides cavity venting at the base of each panel course, ensuring continuous pressure and temperature equalization at every panel reveal. The panels are made of pre-painted, light-gauge aluminum or natural fi nish metals. ID#100 Roof System Application Developed to Ensure Outstanding Adhesion Designed to be the next generation in fully adhered roof system application, Firestone Building Products' Secure Bond Tech- nology ensures adhesion coverage across the entire roofi ng membrane, establishing the most powerful bond possible. In addition to extending the installation window, the system has a self-bonding membrane engineered to stick, eliminating the time needed to apply adhesives and wait for fl ash off. This results in a potential installation time that is up to 10 times faster than traditional methods. In addition, the adhesion does not contain volatile organic compounds and does not emit odor during or after installation. ID#102 Bonding Adhesive Ideal for Healthcare Roofing Projects Carlisle SynTec Systems' Solvent-Free EPDM Bonding Adhesive is a very low-VOC, high-strength roofi ng adhesive designed for use with Carlisle's Sure-Seal and Sure-White EPDM membranes. Because it is solvent-free, non-fl ammable and virtually odorless, this product is ideal for use on any project, and is an excellent option for healthcare facilities. The product is also ideal for re- roofi ng occupied buildings due to its low odor. ID#103 New Air and Water Barriers Reduce Air Leakage, Improve Building Performance Garland's new Aero-Perm line of permeable air and water barriers controls the movement of air through the building envelope. This reduces condensation, moisture develop- ment and energy loss in the wall assembly. The systems are available in both a fl uid-applied and self-adhering version. The barrier allows moisture vapors to pass through porous building materials, reducing the chances for mold growth in the wall assembly. It also cures to a tough, fl exible membrane capable of accommodating building movement while controlling air leakage into and out of conditioned living spaces. Air leakage rates test below detectable limits, providing superior air-leakage resistance and promoting energy effi ciency. ID#104 High-Performance Glass Delivers More Light, Blocks Heat Ideal for curtainwalls, Guardian SunGuard SNX 51/23 allows for a real balance of appearance and performance. It is a low-E glass product with visible light transmission above 50 percent and a solar heat gain coeffi cient below 0.25. This triple silver, low-E glass has a VLT of 51 percent and an ultra-low SHGC of 0.23. The product also offers low refl ectiv- ity and a neutral blue appear- ance compared to other triple silver low-E coatings, giving a new option to reduce energy costs. It is available on clear, green, UltraWhite, Crystal- Gray, gray and TwilightGreen substrates, in both annealed and heat treatable versions. ID#101 Situating public waiting spaces along the exterior allows for a comfortable, positively distracting space. 22 Medical Construction & Design | J U LY/AUGUST 2015 | MCDM AG.COM

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