Contributor Tag

Ralph Paroli

Ralph Paroli is director of the building envelope and structure program for the National Research Council Canada's Institute for Research in Construction and chairman of the NSF/ANSI 347 joint committee.

Featured Article

Featured

A new standard for single-plies

  • Cover

A new ANSI standard will facilitate communication about the environmental and social effects associated with the production and use of single-ply roof membranes.

More from the Author

;