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I am building a kitchen addition to a house in Philadelphia, PA, and the architect calls for panels of mahogony plywood, framed by rails and stiles on the exterior of the structure. While I like the way this looks, I am concerned about delamination and peeling of paint with weathering. Any thoughts on how to prevent this? Would it be better to create the panels of tongue and groove boards?
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kevin - The first question is whether or not the mahogany plywood is made with exterior glue, which goes to the delamination and peeling of the
i plywood itself,
not to mention the paint. If it is 'exposure 1' exterior glue-type plywood then backpriming and buttpriming it will help retain the finish paint.
Other issues include: (1) Stain-killing primer on mahogany (2) Detailing and flashing of rails for water control and (3) protection of this wall construction with overhangs (advisable).
Jeff
*If it's going to be painted, why mahogany? Use MDO. It'll hold paint much longer and is rated for exterior.
*I second Barry,MDO field and vote also for Prime Trim styles and rails. Hold paint good, weather very good, no cost so much.
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I am building a kitchen addition to a house in Philadelphia, PA, and the architect calls for panels of mahogony plywood, framed by rails and stiles on the exterior of the structure. While I like the way this looks, I am concerned about delamination and peeling of paint with weathering. Any thoughts on how to prevent this? Would it be better to create the panels of tongue and groove boards?