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B. Nusser, M. Teibinger, T. Bednar:
"Low-Pitched Timber Roofs";
Talk: World Conference on Timber Engineering (WCTE 2010), Trento Italy; 2010-06-20 - 2010-06-24; in: "Wcte 2010 - Cd1", (2010), 9 pages.

In this paper the experimental results of full scale outdoor studies at 15 different low pitched timber
roofs are presented. EPDM roofs and a green roof with different smart vapour retarders (SVR´s) and inner sheetings and
ventilated and non ventilated metal roofs have been investigated in sunny and shaded conditions. It was shown, that an
enduring shading or a green roof leads to a very high and long lasting relative humidity in the cavity. It was also shown
that at exposed roofs the climate on the vapour retarder can be more favourable for mould growth as below the outer
sheeting. The differences between the roof elements with different SVR´s and different inner sheetings were little.
Despite long lasting and favourable mould growing conditions no mould could be detected in the fully insulated low
pitched timber roofs.

Low Pitched Timber Roof, Smart Vapour Retarder, Moisture reallocation