Accession Number:

ADA126315

Title:

Experimental Polyurethane Foam Roof Systems - II.

Descriptive Note:

Technical note Oct 75-Jul 81,

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Report Date:

1983-01-01

Pagination or Media Count:

63.0

Abstract:

An experimental roofing installation is described in which polyurethane foam PUF was spray-applied directly to metal Butlerib-type metal decks, the roof divided into five approximately equal areas, and the PUF protected with five different elastomeric coating systems. Three of the coating systems were damaged by hailstones about a year after installation these systems were recoated within 3 years of the initial installation. The current coatings include two of the original coating systems - a plural component silicone and a single component silicone - and those applied over the three systems damaged by hail - a single component silicone, an aluminum filled, hydrocarbon-extended catalyzed urethane, and a catalyzed urethane. The performance of these five PUF systems over a 7-year period is reported. The temperature distributions throughout the roof systems are described. The decay in the thermal conductivity of the PUF roof over a 5-year period is presented, and the energy savings realized by foaming the roof are presented. Author

Subject Categories:

  • Coatings, Colorants and Finishes
  • Plastics
  • Structural Engineering and Building Technology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE