Waterproof boards can be used in the environment with high humidity (≥ 75%), such as washroom and bathroom. For example, mold may be growing on a superficial organic nutrient, such as a spilt soda. DURASAN AVERAGE LIGHT REFLECTANCE VALUES* Group Pattern Color Reflectance Value Group 1 Stipple Champagne 69 Chifon 7 Cloud 69 OffWhite 85 Group 3 Santa Fe Porcelain 69 Adobe 5 Harves tC on 65 OysterWhite 52 Rice 68 *X- RITE968 efl ct i o nS p rh m us da withASTMTestMethodE97. Metal-foil backings should be used where the ceiling plenum is also a return-air conduit. 1. R. Dodge Woodson, in Construction Hazardous Materials Compliance Guide: Mold Detection, Abatement and Inspection Procedures, 2012. All rights reserved. Marshall Long, in Architectural Acoustics (Second Edition), 2014. It looks like you entered an employee email address, but this is the customer sign-in. Synthetic, or Flue Gas Desulphurization (FGD) gypsum, is a by-product of coal-fired power plants3. The traditional acoustical tile products have become more interesting visually and may be wrapped with cloth, perforated vinyl, or other porous materials. (2016). Questions should relate to this product specifically. Form refers to the manufacturing process of the panel. 2. Influence of Light Fixtures on Ceiling Reflections (Chanaud, 1983). They are consist of primarily gypsum, non-combustible core, and a paper surfacing on the face, back side and long edges. We'll get back to you as quickly as we can. The wall was tested with selected boxes exposed. Does the ceiling tile and grid system alone provide a fire-rated assembly? Gypsum Association; “GA Industry Capacity Shipment Schedule 2019”, Gypsum Association; “2019 Gypsum Association Gypsum Usage”, Greenspec – “Gypsum Plasterboard: Manufacture & Additives”. It is not effective in staggered-stud walls or with single studs and clips. Use the link below instead. In excess of 80% of coal fly ash sold in the United States is used in gypsum board manufacturing. However, when in doubt it is best to replace the material. and 24 in. Where gypsum board is needed, design to eliminate waste. Cement substitutes such as fly ash or rice hull ash can mitigate the environmental cost of stuccos. 7.2). But the consumption of paper is huge, and the cost is high. o.c. Where can I find the surface reflectance values for some common materials like gypsum boards, ACT ceilings etc. Also, beads, trims, framing, insulation, fasteners, adhesives, joint compounds, coatings, tapes, plaster finishes and textures. The facing can be a variety of materials today, but it's all still gypsum board at heart. https://www.usgbc.org/leedaddenda/100002149. Let us do the research. Where code allows, look for products that utilize agricultural waste, such as wheat, rice, and straw byproduct, which sequester carbon during their growth and store that carbon as a building product. Cement or lime is commonly added for improved hardening and durability, but the comparatively small (or zero) overall cement content of natural plasters means the material causes relatively small amounts of pollution and energy use to prepare and install. Gypsum board (sometimes referred to as plasterboard or drywall) is a commonly used building finish material for walls, ceilings, and partitions, in part due to its inherent fire resistance. EcoRock is naturally cured and dried, which means that 80% less energy is required than the traditional methods use in the manufacturing process. There are many types of siding, and the environmental impacts of siding products vary considerably. A flat reflective light fixture, such as those in Fig. When referring to ceiling panels, what is the meaning of type, form and pattern? Please enter the email address you used to create the account. Table 16.8 (Chanaud, 1983) shows a comparison of the speech reduction rating for various ceiling heights. 0000001342 00000 n (a) Horizontally applied gypsum wallboard showing joints and framing. Lushnikova, Nataliya & Dvorkin, Leonid. © 2020 BuildingGreen, Inc. All rights reserved except where noted. 10.1016/B-978-0-08-100370-1.00025-1. Thermal properties of steel at elevated temperatures. Prefinished Gypsum Board SurFACE BurNiNG CHArACTEriSTiCS (Fire Hazard Classification) (ASTM E 84) Source: Underwriters Laboratories, Inc. �D%V�"d'�����L��L�9sc�ʉ�0�Z�h9� Reclaimed or remilled wood siding should be used to minimize demand for virgin wood and reduce waste (painted wood should be tested for lead contamination prior to use). We'll send you a link that lets you create a new password. Gypsum board is the common name among all the panel products. The ASE value must still be calculated and reported. I am curious to know if Insight plugin follows the procedures for shades / blinds even if they are not modeled? The most durable solid wood siding comes unfortunately from old growth and tropical forests. Figure 6.5. Nightingale and Quirt (1998) investigated the phenomenon in gypsum board walls in some detail. Composite siding (hardboard) is made of newspaper or wood fiber mixed with recycled plastic or binding agents. Also weird that the reflectance for ACT tiles are not shown on the manufacturer info. New technologies have helped in the development of several new Gypsum board products that have come on the market and that are more environmentally friendly and superior in many ways to the traditional gypsum board. When hold-down clips are required, how much space should I leave between the clips, on the grid? Thicknesses vary in 1/8-inch increments from 1/4 to 3/4 inch. Fiberglass tiles with a cloth facing have the highest ratings. Common paper gypsum boards can be used for the inner partitions, the inner boards of the composite outer walls, and ceiling boards. Thicknesses vary in 1/8 in. EcoRock drywall, which creates 60% less dust, is resistant to termites and is 50% more resistant to mildew and mold. Instead, it is usually best to bag or wrap the materials in plastic and discard. %PDF-1.6 %���� Synthetic gypsum wallboard products by American Gypsum, for example, are just as safe as natural gypsum and are certified as low-VOC products by the GREENGUARD Environmental Institute. ... Board … What spaces are considered regularly occupied and must be included in the calculations? Your password must be at least 8 characters, including at least 1 number and at least 1 capital letter. Figure 7.2. Electrical Box Test Configuration (Nightingale and Quirt, 1998), Table 10.4. In excess of 80 percent of coal fly ash sold in the U.S. is used in gypsum board. New Products: USG Ceilings Inspirational Book, Danoline™ Acoustical Gypsum Inspirational Book, Acoustical Ceilings Performance Substrate, Ensemble® Acoustical Drywall Ceiling Estimator, Levelrock® & Durock™ Brand Fire & Sound Rating Guide, USG Ceilings Commercial Application Warranty (English) - SC2102, California Transparency in Supply Chain Act, Terms and Conditions for USG Sales/Terms and Conditions for USG POs, Clean Room® panels have a vinyl-laminated face with sealed back and edges for use in clean room environments up to Class 100/ISO Class 5, Washable and scrubbable finish — impact and scratch resistant, Low-emitting product meets CA Specification 01350, California Department of Health Services Standard Practice for the testing of VOC emissions, Panels meet USDA/FSIS requirements for food processing areas, ClimaPlus™ 30-year lifetime system warranty against visible sag, Exterior Soffits and Indoor Parking Garage, Restrooms, Utility Rooms and Loading Docks. One such example is the new ecofriendly EcoRock Drywall which has significantly changed and improved the drywall product from its basic material elements to its production processing methods. Copyright © 2020 Elsevier B.V. or its licensors or contributors. They must be automated. If it exceeds the 10% but fall belows 20% you will need to just supply the information in the submission demonstrating that you automated shades installed. In the United States and Canada gypsum board is manufactured to comply with ASTM Specification C 1396. Spaces with an ASE1000,250h score greater than 10.0% and less than 20.0% are acceptable with a narrative describing how the space is designed to address glare. 0000000918 00000 n Thermal properties of gypsum are available in tabular form or through sets of linear equations (Chen et al., 2014; Thomas, 2002; Sultan, 1996). In Building Materials in Civil Engineering, 2011. CAC stands for Ceiling Attenuation Class. Call our Technical Support team at 800-874-4968 (Monday-Friday, 7:30 am - 4 pm Central). (2016). To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile. Though synthetic gypsum-board use is growing in popularity, and reclaimed gypsum board can easily be recycled into new gypsum panels that conform to the same quality standards as natural and synthetic gypsum, doing this may not be practical because gypsum is an inexpensive material which can require significant labor to separate and prepare for recycling.


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