TY - GEN AU - William C Cullen AU - Thomas H Boone C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1965-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.8632 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1965 TI - A new approach to roof system design: ER -