Mdf use

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  #1  
Old 12-12-18, 04:18 AM
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Mdf use

Can I use MDF board for my soffits?
 
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Old 12-12-18, 04:20 AM
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I've seen drywall used for soffits so the answer would be yes ...... but why?
 
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Old 12-12-18, 04:23 AM
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Not a good idea... it's not an exterior product, and will swell if it ever gets wet.
 
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Old 12-12-18, 07:30 AM
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Why not use plywood instead?
 
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Old 12-14-18, 08:02 PM
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Yes you can but there are many better options. MDF and water do not mix, even when painted. MDF will brake off a corner if nailed too close. Nails in the field will pucker MDF.

Options, Hardie board. Ply wood. PVC. Vinyl. Aluminum.
 
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Old 12-15-18, 06:52 AM
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I would use plywood or a premium OSB like Advantech. MDF is simply too susceptible to damage from water.
 
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