Document pBEwgaJ26O0Y5mpVEer1RKEQj

INTER-OFFICE memorandum To: From: Subject: F. M Stumpf J, F, C'Rourks CriJoGZ-' Date: November 29, 1961 ADDITIONAL TECHNICAL TESTS REQUIRED 31 RESEARCH PLAINTIFF'S EXHIBIT f V'uSM-193 Within the next few months, the National Bank Building of Cincinnati, oH? will be out for bids. This job involves a Robertson Q air floor and CAFCO is one of the products specified# So that we may have the necessary information as well as perhaps obtain a competitive edge for this project as well as future projects involving Q air floors, it is imperative that a test be run by same independent laboratory evaluating the performance of CAFCO BLAZE-SHIELD as a thermal insulating and condensation control medium when applied to the undersurface of the Q air cell# As noted from prior correspondence, H# H# Robertson Company is interested in such a test# As evidenced from the Continental Casualty job which we lost to Spraycraft in Chicago, such a test would have been of immeasurable assistance in clarifying the architects insistence upon a vapor barrier application to the undersurface of the fiber applied to the Q air floor on that specific project# Such a test on an air cell will be of help to us on the hank building job in Cincinnati when it is finally negotiated. It is felt that such a test is needed for future Q air floor projects that may spring up. What is needed is a test conducted by an independent laboratory which wills 1# Recommend a minimum thickness of CaFCO which could be applied to provide adequate thermal insulation of the air cell when operating under normal air condition office temperature-humidity conditions# 2# If CAFCC BLAZE-SHIELD could withstand some element of condensation under adverse conditions without the necessity of vapor barrier treatment# Another test that is needed to be run by an independent laboratory is a dusting and flaking resistance test# As you know, Spraycraft has run such a test with a questionable independent laboratory wherein the recommendations were that Spraycraft material could resist dusting and flaking even when a sealer is not applied. This is a most damaging test as far as we are concerned# If for no other reason than to counteract this fluke competitive test advantage, we*ve got to run a dusting and flaking test at an outside laboratory that will make sense to an architect who is considering its use for a plenum area being used for air supply ar return# May I have your comments on the above as well as when and where you expect to have such tests conducted.