The National Air Filtration Association (NAFA) has announced the winners of its 2015 Clean Air Awards. The award is presented each year to building owners and managers in Canada and the United States that take the steps to significantly improve indoor air quality (IAQ) by increasing the level or efficiency of the HVAC air filtration system in 10 specific categories.
The American Society of Heating, Refrigeration, and Air-conditioning Engineers (ASHRAE) wants research papers for its second International Conference on Efficient Building Design: Materials and HVAC Equipment Technologies.
At the most basic level, a building automation system (BAS) helps reduce operating costs and equipment replacement capital costs by only running systems when they are needed. For example, facility professionals could use a BAS to raise air-conditioner set-points or turn off the system in college dorm rooms in Toronto in the spring and summer, or lower heating set points in Edmonton commercial office buildings on winter weekends.
A decade ago, designing the esthetics of an exposed ventilation system in open architectural ceiling applications began with colour, material, and dispersion method selection. The suspension or top end of the ventilation system was the least esthetic concern—it was typically the last choice, or just an after-thought in the process.
In London, Ont., Brescia University College’s new residence hall and dining complex has a sustainable HVAC system providing air comfort while also helping the project earn an environmental rating of five Green Globes under the online green building rating program.
YWCA Toronto opened the doors of its Elm Centre, an affordable housing complex for women and their families incorporating various energy-efficient elements into its design. The $80-million project was designed by Hilditch Architects and spans across a city block in Toronto’s downtown core. It includes five-, 10-, and 17-storey residential towers, commercial space, and YWCA Toronto corporate offices.
Indoor air quality (IAQ) technologies combining ultraviolet germicidal irradiation (UVGI) and gas-phase purification allow engineers and facility managers to reduce energy consumption while ensuring a safe environment for building occupants. Now, the latest approach is to combine these systems with photocatalytic oxidation (PCO)—a chemical reaction caused by shining UV light onto a reactive medium, usually titanium dioxide.
By its nature, every roof is a unique and complex waterproofing system whose performance depends on design appropriateness, material quality, and installer craftsmanship. All three of these must be present for an assembly to achieve its anticipated lifespan. As a construction activity, roofing requires the same high level of diligence as other construction trades, such as mechanical and electrical systems.
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