June 5, 1999
Hot-Humid Hot-Dry/Mixed-Dry


Unvented-cathedralized attics are known to be advantageous in hot-humid and hot-dry climates, whereby, exterior moisture would be excluded for hot-humid climates, and attic mounted air distribution systems would be inside conditioned space for both climates. Current work focuses on the performance and durability of unvented-cathedralized attics in hot-humid climates with both tile and asphalt shingle roofing. The advantages for the hot-humid climate are expected to be even greater than for the hot-dry climate.