Building owners that maintain facilities must contend not only with the upfront costs of construction, but also with the long-term costs of maintenance and repairs. Often times, there are lessons to be learned about long-term building envelope performance from facilities that are held by the same owner for long periods of time.
The materials and systems used in buildings have changed dramatically over time. Understanding how old buildings work from a building science perspective will lead to better maintenance and retrofit decisions. Sarah Gray and David Young will discuss how traditional materials and construction practices managed heat transfer, air flow, vapor diffusion and moisture absorption in old buildings.
Sheet metal is a unique roof system choice that continues to evolve into new systems and applications. Metal roofs are gaining market share in both commercial and residential markets. Building owners have a high performance and aesthetic appeal expectation for metal roofs. Along with this evolution come the problems associated with it.