Thread: Free, but is it worth it?

Originally Posted by beer is good

G'day Moe,
I lined part of my shed with MDF a while ago. To stop any damp coming up through the floor, I bought some plastic channel from Bunnies and slipped it over the bottom edge of the sheet and put some glue on to hold it in place. So the plastic channel (I think it was 16mm wide by about 15mm high) is resting on the floor. I screwed steel top hat battens horizontally on the steel walls and screwed through the MDF into the battens. I painted the MDF white to help with the lighting. All going well so far.

I wouldn't use the battens again - they are a bit hard to cut to length, so I would use unequal channel, and if I couldn't find the right size I'd just use equal channel and cut a V shaped cut in one face to get the screw in.

I think that BIG's reply is a wise answer to keeping the MDF off the deck ands should provide a long life for the MDF.

As far a hanging things on the MDF, at 13mm it should for the most part be good enough as is. If worried, then put pine battens on the MDF inside, when ands where you need them. nFix with screws after applying some clear silicone to the batten. Stuck forever, ands like Superman holds (almost) anything!!

As soon as you add laserlite you might notice condensation. My new jet jointer sits under one of the sheets and I had forgotten to cover it when I left for the day. Come next weekend bloody big rust stain which looks like it came from water off roof. My roof does not leak must be condensation

Sealed MDF may be Ok down south where the humidity is low, but in QLD I would avoid it. IMHO it is just a matter of time before you end up with a sagging mouldy mess.

Originally Posted by pellcorp

As soon as you add laserlite you might notice condensation. My new jet jointer sits under one of the sheets and I had forgotten to cover it when I left for the day. Come next weekend bloody big rust stain which looks like it came from water off roof. My roof does not leak must be condensation

You sure it wasn't overspray from the bottle of champers that you opened to celebrate a new achievement or ??

I've got laserlite on the roof of my patio, and I do notice some condensation at times where it nis cloe up to the house; but it's only a 7 degree fall andc I've just put it down to that. But, I do see quite heavy condensation at times inside my garden shed, and that does run and drip, but steel roofs without any form of sarking under them invariably do I guess.