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Classes and EventsTo acquaint you with various aspects of the Earth Advantage® program, we frequently participate in events targeted to the home buyer, builder and industry professional. We also host open houses and organize tours of Earth Advantage homes. Please join us at these upcoming venues:
ClassesNo Classes are currently scheduled. Please check back soon for new opportunities to learn about building with sustainable methods and other related topics.
EventsNo Events are currently scheduled. Please check back soon for new opportunities to learn about building with sustainable methods and other related topics.
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 In 1978 plywood made up 89.1% of the roof sheathing market; by 1999, use of plywood in roof sheathing had dropped to 27%. Plywood has been replaced by Oriented Strand Board (OBS), which now comprises more than 70% of the market. (Sources available upon request.)
 
 
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