Low Toxicity Drywall? Reader concerns about toxicity of "green" drywall products
DRYWALL GREEN LOW TOXICITY - CONTENTS: opinions on environmentally friendly or low-toxicity drywall or gypsum board, "green" building products including green drywall, and green building product certifying agencies as well as green drywall suppliers.
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Greeen or low-toxicity drywall: reader opinion:
This article discusses a reader question and opinions on environmentally friendly or low-toxicity drywall or gypsum board, "green" building products including green drywall, and green building product certifying agencies as well as green drywall suppliers.
What are you getting if you buy the "Green" or "low toxicity" drywall or gypsum board panels
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Any thoughts regarding MagO walls?
Researching less toxic options since the walls we got from Certianteed (@$32 bucks a sheet) are coming apart just months after installation; don't think they're cleaning our air( 75 yrs pure air up to 25v coats of paint also made from COAL ASH GYPSUM + = yuk) as their commercials w/ Mike Holmes & Ty Pennington claim.
Hard to find precautionary principal rules to apply; takes a mortality rate for eons before affirmative actions.
Lots of lawsuits w/ china & american made; meanwhile people are negatively impacted. Your thoughts?
Is there such a thing as green drywall? If so, what alternatives to conventional drywall do you recommend? | Green Home Guide- cited by reader, http://www.greenhomeguide.com/askapro/question/is-there-such-a-thing-as-green-drywall-if-so-what-alternatives-to-conventional-drywall-do-you-recommend
Found a lot of info touting the miracle of MagO products like Dragonboard (China) & JetBoard (Texas) also found a company AmeriForm supplier near us in Cicero, ILLinois.
Quotes from various sites please refer to below; Youtube has many videos sing praises of MagO fire safety etc.
GeoBoard® - Decorative Cement Board | Ameriform
www.ameriformllc.com/geoboard.aspGeoBoard® is a decorative cement board used in both interior & exterior applications such as exterior ventilated rain-screen systems, exterior & interior cladding ...
The Most Innovative Building Product at the 2014 IBS – JetBoard by JetProducts......"Winners of the National Association of Home Builders (NAHB) second annual Best of International Builders’ Show (IBS) Awards were selected in February at the 2014 International Builders’ Show (IBS) in Las Vegas. Awards were given to exhibitors with a product or line that showed the best combination of design, functionality and innovation.
More than 250 exhibitors applied to be considered for the seven awards, including the Most Innovative Building Product Award."
....." Product Description: Calcium silicate board --- Magnesium oxide board
Magnesium Oxide Board has the features as follows:(1)Non-flammability: Gemtreeboard is non-flammable and conforms to the national grade A1 standard (GB8624-2006 Grade A1). In case of fire, the board will not burn and not give off poisonous smoke, and is ideal in multi storey building such as offices and appartments for escape routes and shaftwall, or dividing walls in commercial units.(2)Water-proofing and moisture-proofing: The product is allowed to long-term expose to moist environment. Test results prove that after this material has been immersed in water for one month,it keeps its original shape without deformation or expansion and its dry-wet deforming ratio is 0%.(3)Problem-free: Gemtreeboard provides good insulation against bugs, fungus and corrosion. It can last for a long-time and will not corrode. (4)High-Strength and Lightweight: Owing to the density is not high ,the board is light weight, in this case, it can decrease weight of building greatly. At the same time, the material is high-strength and not easy to be damaged. (5)Easiness to construct: Gemtreeboard is easy to cut, saw nail, stick. Gemtreeboard has a smooth finish one side that can be taped and jointed ready for decoration including wallpapering, painting, texture coat and veneer, and a rougher side for tiling. (6)Environment: Gemtreeboard does not contain any organic solvents, formaldehyde, asbestos, oils or other toxic substitances that can have a negative impact on the environment and waterways. As such, saw dust from Gemtreeboard can safely be disposed off in landfills. Off-cuts of Gemtreeboard can be reground and reused back at the production factory. (7)Polywood substitution, particle board substitution and MDF substitution. Performance:Testing ItemDataBasisApparent densitye0.85-1.5t/m3JC688-2006Moisture content≤8%JC688-2006Percentage of dry shrinkage≤0.3%JC688-2006Percentage of water swelling≤0.6%JC688-2006Screw_withdrawal force≥70N/mmJC688-2006Dehalogenation resistanceNo water and no moisture createdJC688-2006Content of chloride ion≤10%JC688-2006Fireproof performanceA1 non-flammabilityGB8624-2006Fire resistant time2hA 90mm-thick partition with 6mm mgo board on both sides of studsFire resistant time4hA 99mm-thick partition with 12mm mgo board on both sides of studsSound insulation42dB9mm MgO board+75 stud+50 rockwoolBending strength16MPa9mmImpacting strength5.5Kj/m29mmEnvironmentNo radioaction, asbestos or formaldehyde freeGB656-2001Water permeabilityNo moisture or waterCECS9597Alkali Resistance CECS9597Thermal conductivity0.109Average temperature: 30±5Kcal/m°chr Suitable places for application:Interlayer walls 2.External walls 3. Partitions 4.Sound-resistance structure 5. Fire-proof structures 6.Fire-proof doors 7.Water-proof doors 8.Ceilings 9.pillar wrapping 10. Cabinet board 12.Flue board 13.Addition structure Welcome to official website ---www .gemtreeboard .com "
- anonymous by private email
We've heard similar complaints about drywall and "green-certified" drywall performance as well as about other products from readers who've been to "Green" websites or sought and bought "green-labelled" products.
OPINION: Unfortunately for people with a particular levels of concern about various aspects of the terms "green" or "environmentally-resonsible" or "healthy home" products, the construction industry, as other industries, has recognized the marketing value of the "green" label. Meanwile "green-labeling" itself has become difficult to navigate as self-appointed, self-labeling, self-certifying agences spring up to fill the market need. Some of these may be serious players, others simply less-obvious industry-marketing agencies.
Even LEED building certification is confusing, as the point-system allows a builder to earn points on some areas of energy conservation while paying them or at least missing them on others, leaving a consumer confused about just what "certification" means to them.
We cannot and don't in general recommend any specific product and we are as stymied as you about green building product or energy-efficient product labeling and agencies.
Whether reading ratings by a certifying agency or reading online product reviews, kudos, or gripes, consumers have to read with care as producers and sellers are acutely aware of the possible impact of good or bad publicity as well as review and website and search engine gaming techniques.
Consumers are left having to read the fine print and think for themselves.
InspectAPedia is an independent publisher of building, environmental, and forensic inspection, diagnosis, and repair information provided free to the public - we have no business nor financial connection with any manufacturer or service provider discussed at our website.
We are dedicated to making our information as accurate, complete, useful, and unbiased as possible: we very much welcome critique, questions, or content suggestions for our web articles. Working together and exchanging information makes us better informed than any individual can be working alone.
If you agree, I'll post your comment and concern as well as our reply an an appropriate website page and give you that link; our default is to keep you anonymous unless you want to be identified.
Often allowing the sun to shine on a public concern can be helpful and it can also bring comments from more-expert readers, consumers, etc. F]
All gypsum drywall panels come in standard sizes but custom sizes are
available for large orders. Thickness of gypsum board varies from from ¼
to 1 inch. Most building codes mandate either 1/2 or 5/8 inch drywall for
single-thickness applications. Thinner ¼ and 3/8 inch to be used to cover
existing walls and ceilings. Standard drywall works well in most situations
but codes may require Type X or Type MR for certain applications.
Moisture resistant type gypsum wall board (green board) is not
recommended in bathroom and laundry areas. Use Densglass or
Aquatech by Gold Bond in these areas. Use tile backerboard such as
Wonderboard or Durock around tub and shower enclosures.
Gypsum Association Representing manufacturers of gypsum board in the
US and Canada www.gypsum.org
Drywall Information Trust Fund of California www.drywallca.com
Drywall Recycling www.drywallrecycling.org
USG Installation and Application Guides www.usg.com
Try the search box below or CONTACT US by email if you cannot find the answer you need at InspectApedia.
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Questions & answers or comments about mold-resistant drywall and other mold-resistant building products & methods
Use the "Click to Show or Hide FAQs" link just above to see recently-posted questions, comments, replies, try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.
Association of the Wall & Ceiling Industry - awci.org "AWCI represents 2,200 companies and organizations in the acoustics systems, ceiling systems, drywall systems, exterior insulation and finishing systems, fireproofing, flooring systems, insulation, and stucco contractors, suppliers and manufacturers and those in allied trades. Our mission is to provide services and undertake activities that enhance the members' ability to operate a successful business."
Drywall Finishing Council "is a Not For Profit, Mutual Benefit Organization that seeks to represent the issues that are commonly faced by manufacturers of materials used in the finishing of drywall" - see dwfc.org and see this .PDF about the Drywall Finishing Council. The DFC website provides additional documents: "a visual evaluation method for inspecting joint treated gypsum panel surfaces", "Interior Job Condition Specifications For The Application Of Drywall Joint Compounds, Drywall Textures, And Paints/Coatings", and "guidelines for determining the visual performance expectations of a Level 5 finish" drywall systems.
Drywall Grid System Standards:
ASTM C635 Standard Specification for the Manufacture, Performance, and Testing of Metal Suspension Systems for Acoustical Tile and Lay-in Panel Ceilings
ASTM C636 Standard Practice for Installation of Metal Ceiling Suspension Systems for
Acoustical Tile and Lay-in Panels
ASTM C645 Standard Specification for Nonstructural Steel Framing Members
ASTM C754 Standard Specification for Installation of Steel Framing Members to Receive
Screw-Attached Gypsum Panel Products
CISCA Ceiling & Interior Systems Construction Association
DSA PA105 Division of the State Architect (California)
IBC International Building Code
ICC ESR-1289 International Code Council Evaluation Service
NOA 04-0716.03 Dade/Broward County, Florida Product Approval
RR25348 City of Los Angeles Research Report
UBC 25-2 Uniform Building Code Standard (section 25.210, exception 2)
UL Underwriters Laboratories Inc. Fire Resistance Directory
Also see the Armstrong Corporation's article on drywall grid system installation details at armstrong.com/common/c2002/content/files/4279.pdf or contact the company at 877-ARM-STRONG
Gypsum Association, www.gypsum.org - 810 First St. N.E. Suite 510, Washington D.C. 20002, 202-289-4550. A gypsum drywall trade association that includes the following corporations: American Gypsum logo,
CertainTeed Gypsum, Inc.,
CertainTeed Gypsum Canada Inc.,
Federal Gypsum Company,
Lafarge North America,
National Gypsum Co.,
United States Gypsum. (Most of these companies also publish product installation and specifications guides.)
The Gypsum Association association provides quite a few online documents addressing the installation and assessment of gypsum board products, including
Gypsum Board Evaluation Report - ES Report ESR-1338, 12/1/2007, Division 09, Gypsum Board Assemblies, prepared by ICC Evaluation Service, Inc. (icc-es.org) provides an independent evaluation of contemporary drywall or gypsum board products with respect to building code compliance (2006 International Building Code IBC and the 2006 International Residential Code IRC) with respect to interior finish, fire resistance, sound control, structural considerations, thermal barrier, and exterior finish.
Assessing Water Damage to Gypsum Board - (GA-231-06), "general industry conditions for assessing gypsum board that has been exposed to water or elevated levels of moisture. Includes recommendations for drying conditions" -
available for purchase in hard copy form at www.gypsum.org
"Recommended Levels of Gypsum Board Finish", available at www.gypsum.org
Fire Resistance Design Manual GA-600, The 18th edition includes fire-resistance ratings for over 370 gypsum-protected wall, ceiling, roof, column, beam, girder, and truss systems. available for purchase in hard copy form at www.gypsum.org
Recommended Levels of Gypsum Board Finish (GA-214-07), "jointly produced by the four leading associations in the industry, assists specifiers, owners, and contractors to precisely describe the desired finish of individual walls and ceilings to meet specific needs. Avoids non-specific terms like "industry standards" and "workmanlike finish" and the problems they can cause" available for purchase in hard copy form at www.gypsum.org
Repairing Screw or Nail Pops [in drywall or gypsum board] (GA-222-08), "the symptoms, causes, and repair methods for fastener pops in gypsum board surfaces." available for purchase in hard copy form at www.gypsum.org
American Plywood Association, APA, "Portland Manufacturing Company, No. 1, a series of monographs on the history of plywood manufacturing",Plywood Pioneers Association, 31 March, 1967, www.apawood.org
Animal Allergens: Dog, Cat, and Other Animal Dander - Cleanup & Prevention Information for Asthmatics and regarding Indoor Air Quality.
Asbestos: How to find and recognize asbestos in buildings - visual inspection methods, list of common asbestos-containing materials
ASHRAE resource on dew point and wall condensation - see the ASHRAE Fundamentals Handbook, available in many libraries. The following three ASHRAE Handbooks are also available at the InspectAPedia bookstore in the third page of our Insulate-Ventilate section:
2005 ASHRAE Handbook : Fundamentals: Inch-Pound Edition (2005 ASHRAE HANDBOOK : Fundamentals : I-P Edition) (Hardcover), Thomas H. Kuehn (Contributor), R. J. Couvillion (Contributor), John W. Coleman (Contributor), Narasipur Suryanarayana (Contributor), Zahid Ayub (Contributor), Robert Parsons (Author), ISBN-10: 1931862702 or ISBN-13: 978-1931862707
2004 ASHRAE Handbook : Heating, Ventilating, and Air-Conditioning: Systems and Equipment : Inch-Pound Edition (2004 ASHRAE Handbook : HVAC Systems and Equipment : I-P Edition) (Hardcover)
by American Society of Heating, ISBN-10: 1931862478 or ISBN-13: 978-1931862479
"2004 ASHRAE Handbook - HVAC Systems and Equipment The 2004 ASHRAE HandbookHVAC Systems and Equipment discusses various common systems and the equipment (components or assemblies) that comprise them, and describes features and differences. This information helps system designers and operators in selecting and using equipment. Major sections include Air-Conditioning and Heating Systems (chapters on system analysis and selection, air distribution, in-room terminal systems, centralized and decentralized systems, heat pumps, panel heating and cooling, cogeneration and engine-driven systems, heat recovery, steam and hydronic systems, district systems, small forced-air systems, infrared radiant heating, and water heating); Air-Handling Equipment (chapters on duct construction, air distribution, fans, coils, evaporative air-coolers, humidifiers, mechanical and desiccant dehumidification, air cleaners, industrial gas cleaning and air pollution control); Heating Equipment (chapters on automatic fuel-burning equipment, boilers, furnaces, in-space heaters, chimneys and flue vent systems, unit heaters, makeup air units, radiators, and solar equipment); General Components (chapters on compressors, condensers, cooling towers, liquid coolers, liquid-chilling systems, centrifugal pumps, motors and drives, pipes and fittings, valves, heat exchangers, and energy recovery equipment); and Unitary Equipment (chapters on air conditioners and heat pumps, room air conditioners and packaged terminal equipment, and a new chapter on mechanical dehumidifiers and heat pipes)."
1996 Ashrae Handbook Heating, Ventilating, and Air-Conditioning Systems and Equipment: Inch-Pound Edition (Hardcover), ISBN-10: 1883413346 or ISBN-13: 978-1883413347 ,
"The 1996 HVAC Systems and Equipment Handbook is the result of ASHRAE's continuing effort to update, expand and reorganize the Handbook Series. Over a third of the book has been revised and augmented with new chapters on hydronic heating and cooling systems design; fans; unit ventilator; unit heaters; and makeup air units. Extensive changes have been added to chapters on panel heating and cooling; cogeneration systems and engine and turbine drives; applied heat pump and heat recovery systems; humidifiers; desiccant dehumidification and pressure drying equipment, air-heating coils; chimney, gas vent, fireplace systems; cooling towers; centrifugal pumps; and air-to-air energy recovery. Separate I-P and SI editions."
Humidity: What indoor humidity should we maintain in order to avoid a mold problem?
Ice Dam Leaks in building attics and roof cavities, how to inspect for evidence of leaks, identify causes, and correct bad attic ventilation, improper roof venting, and these causes of attic mold or roof structure damage
The National Institute of Standards and Technology, NIST (nee National Bureau of Standards NBS) is a US government agency - see www.nist.gov
"A Parametric Study of Wall Moisture Contents Using a Revised Variable Indoor Relative Humidity Version of the "Moist" Transient Heat and Moisture Transfer Model [copy on file as/interiors/MOIST_Model_NIST_b95074.pdf ] - ", George Tsongas, Doug Burch, Carolyn Roos, Malcom Cunningham; this paper describes software and the prediction of wall moisture contents. - PDF Document from NIS
Carson, Dunlop & Associates Ltd., 120 Carlton Street Suite 407, Toronto ON M5A 4K2. Tel: (416) 964-9415 1-800-268-7070 Email: email@example.com. The firm provides professional home inspection services & home inspection education & publications. Alan Carson is a past president of ASHI, the American Society of Home Inspectors. Thanks to Alan Carson and Bob Dunlop, for permission for InspectAPedia to use text excerpts from The Home Reference Book & illustrations from The Illustrated Home. Carson Dunlop Associates' provides extensive home inspection education and report writing material.
The Illustrated Home illustrates construction details and building components, a reference for owners & inspectors. Special Offer: For a 5% discount on any number of copies of the Illustrated Home purchased as a single order Enter INSPECTAILL in the order payment page "Promo/Redemption" space.
TECHNICAL REFERENCE GUIDE to manufacturer's model and serial number information for heating and cooling equipment, useful for determining the age of heating boilers, furnaces, water heaters is provided by Carson Dunlop, Associates, Toronto - Carson Dunlop Weldon & Associates Special Offer: Carson Dunlop Associates offers InspectAPedia readers in the U.S.A. a 5% discount on any number of copies of the Technical Reference Guide purchased as a single order. Just enter INSPECTATRG in the order payment page "Promo/Redemption" space.
The Home Reference Book - the Encyclopedia of Homes, Carson Dunlop & Associates, Toronto, Ontario, 25th Ed., 2012, is a bound volume of more than 450 illustrated pages that assist home inspectors and home owners in the inspection and detection of problems on buildings. The text is intended as a reference guide to help building owners operate and maintain their home effectively. Field inspection worksheets are included at the back of the volume.
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