Improperly installed vents can, and will, leak overt time. A properly installed vent is fastened with no fasteners exposed to the elements. If fasteners must be exposed, gasket screws or caulking should be used to prevent leaking. We recommend not installing anything in a fashion that will lead to leaks down the road. Note the improperly placed fasteners in the photo.
Northwest Roof Maintenance
503-740-4808
360-910-8938
www.northwestroof.com
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