The APA Publications Index, Form B300 NN, has been updated. The revised 2008 index provides a complete listing of APA design and construction guides, product guides, builder tips, case histories, industrial publications and other materials available from the Association.
California's Air Resources Board (CARB), a division of the California EPA, is working to enact new regulations to reduce formaldehyde emissions from wood panels and products made from wood panels used in the state.
"New Opportunities for Fiber Reinforced Glued-Laminated Beams" is the title of a recently featured article in Structure Magazine. Co-authored by APA Vice President of Quality Assurance and Technical Services Tom Williamson, the article covers the advantages, recent developments and future possibilities of fiber reinforced glulam beams.
Question: We have specifications for a project that specify Exterior Grade sheathing for a roof deck. The contractor used Exposure 1, and insists that it is the appropriate grade for the application.
Our primary concern is that the contractor did not protect the Exposure 1 sheathing, and it was subjected to heavy rains over a period of five to nine days. It is now protected, but is there a possibility of delamination? Prior to covering, we observed some swelling and minor buckling. Would Exterior Grade sheathing have exhibited the same physical characteristics under these conditions? Could you please shed some light on this subject?
Below is a summary on adhesive performance at elevated temperatures, one of the five APA presentations given at the 9th World Conference on Timber Engineering, held in August. Look for APA’s other conference presentations to be posted on the Blog soon.
