12:08PM | 11/30/06
Member Since: 11/29/06
1 lifetime posts
we recently tiled our screened-in back porch. it has been several days since it was layed beause the holiday and such. since then I have noticed that every morning I go out to the back porch there is dew that has formed on top of our ungrouted tile. is there a problem and why is this happening? our tile is rated for cold and warm weather. any comments would be greatly apreciated.

thank you,

Renee Cherry
895 tiling


09:51PM | 12/03/06
Member Since: 12/27/02
543 lifetime posts
I'm not a tiler, you may want to try the tiling section here at BV too.

My guess would be it's acting like a vapour barrier.

Any place where you have cold meeting warm air you'll get condensate, that is when airs water as a gas state (vapor) meets a cold front will turn to a liquid state you know like morning dew.

You've probably heard of vapor barriers which is a sheet plastic between the warm & cold in a wall system.

Your tile being on the arm side is meeting the cool air and creating a dew type effect. Insulating the floor, and placing a vapor barrier on the proper side south & north are different you may be able to stop the reaction?

BUT, that is just an educated guess, have a local insulation conmtractor check it out and like I said try the tiling section too. ;)

Alter Eagle Construction & Design | Construction & Design | | Decks, California outdoor living | | Molding and finishing | | Crown tutorial

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