North Windy Ridge, located in Weaverville, North Carolina completed a metal-over-metal retrofit re-roofing. The suburban school serves approximately 600 fifth and sixth grade students and is part of the North Buncombe District of Buncombe County Schools. Nestled between the Blue Ridge Parkway and the French Broad River, the school is a new concept to the state of North Carolina that merges the last year of elementary school with the first year of middle school.
Unique to the design of this re-roofing application were custom-made sub-purlins that provided convective ventilation through the air-space between the existing and new roofs. Also known as “Above Sheathing Ventilation” or ASV, this ventilation technology provides building owners with tremendous energy saving benefits. Based on research conducted at the Oak Ridge National Laboratory’s Building Envelope Technology department, roofs fitted with ASV can reduce heat gain by as much as 45% lowering energy demand.
The special sub-purlins were provided by Roof Hugger, Inc. of Lutz, FL, which is recognized as the leader in retrofit metal-over-metal sub-framing systems. Roof Hugger’s patented sub-purlins are manufactured to “match” virtually any existing roof profile, which in this case was a snap-lock vertical rib standing seam. Atop the sub-purlins, a new metal standing seam roof is installed.
MBCI of Houston, TX provided the new metal roof. For maximum wind resistance, the MBCI 24 GA “SuperLok” with 16” rib spacing and 180 degree machine seamed rib was specified in an MBCI Energy Star rated Brownstone color.