roof bracing???

[RangerDangerV2 5,000+ posts]

I recently pulled out all of the ranger's carpet and I am getting ready to start bracing and deadning.... now for the roof I was going to brace it with a sheet of mdf... the question is should I put up the mdf first and then deaden over the mdf bracing or vice versa???

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[wenn_du_weinst 10+ year member]

they would be doing the same job.

 

[RangerDangerV2 5,000+ posts]

they would be doing the same job.

yes I realize this but I was just wondering if one way would be easier than the other.... I am thinking that mdf to the roof would be stronger than mdf to the deadner...

 

[bigwheel15 10+ year member]

Id deaden after the mdf.

 

[keep_hope_alive Premium Member]

you may want to make MDF ribs that are siliconed to the roof. then the new MDF sheet can attach to the ribs and you can deaden the metal in-between the ribs. that's what i've seen done.

no reason to deaden MDF, and once you cover the roof you won't have access to deaden metal.

you really don't need deadening anyway - you just want rigidity.

 

[mlstrass 5,000+ posts]

Don't use MDF as it will delaminate if the roof still flexes. I used birch in mine, still had some flex and you could hear the outer laminate tear apart.

I prefer a solid hardwood, even 1" pine is fine. Use PL glue to attach it.