MDF - Skylight Casing

pleuba · 1 Jul 2006

I am drywalling my workshop ceiling where a couple skylights are installed. The roof rafters are 2 x 10's and I need to install a casing to finish the opening around each skylight. I would appreciate advice on using 3/4" MDF for this purpose. This appears to me to be the most convenient and cost effective material. I plan to apply primer/sealer and two coats of latex enamel paint. Would I have any cause for concern if an occasional rain shower got the painted MDF caseing wet before I could close the skylights?

Would the primer and two coats of latex paint be sufficient to protect the MDF from deteriorating from the occasional moisture?

Paul

Scrit · 1 Jul 2006

Hi Paul and welcome!

You'll really need to use at lea MR-MDF (moisture-reisitant MDF) which has a green core not standard MDF as there is a possibility moisture contact. I doubt that you'll need exterior grade MDF.

Scrit

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MDF - Skylight Casing

pleuba

Scrit

DIYnot Local

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