Greenhouses, Sheds and Sun Rooms - Deck to Sunroom
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Ron.Justice
03-29-02, 06:23 AM
I built a 12X27 deck several years ago. Now I have turned it into a sun room. Still have the deck as the floor.
I would like to cover the floor with tile. I know that I need to put plywood and backer board down first.
But will I need to put plastic or tarpaper down first?
I can not get under the porch unless I pull up the decking as the deck sits on the ground at one end and 2 feet off the ground at the other end. It is not actuall on the ground, I put landscape paper down then 2 inches of gravel down and the frameing is tied to post in the ground.
I would like to cover the floor with tile. I know that I need to put plywood and backer board down first.
But will I need to put plastic or tarpaper down first?
I can not get under the porch unless I pull up the decking as the deck sits on the ground at one end and 2 feet off the ground at the other end. It is not actuall on the ground, I put landscape paper down then 2 inches of gravel down and the frameing is tied to post in the ground.
lefty
03-29-02, 06:28 PM
The short answer top your question would be to lay down 30# felt paper, then concrete backer board. Tile over that. I don't see where the plywood would be necessary, UNLESS your decking is only 1X or 5/4. In that case, a layer of 3/4" plywood should be laid over the felt, before you lay the WonderBoard.
As far as the deck itself, if you buried wood posts in the ground, they are gonna rot. You might want to correct that situation before you add too much more on top of them. Get under the deck, dig out 18" square pads about 4" to 6" deep under the girders, fill the holes with concrete and set a pier block in it while it is still wet. Once the concrete has set for about a week, install posts between the pier blocks and the girders. Once all of that is attached, remove the wood posts that are buried in the dirt. While you have things opened up, remove enough dirt so that you have an 18" crawl space under the deck.
As far as the deck itself, if you buried wood posts in the ground, they are gonna rot. You might want to correct that situation before you add too much more on top of them. Get under the deck, dig out 18" square pads about 4" to 6" deep under the girders, fill the holes with concrete and set a pier block in it while it is still wet. Once the concrete has set for about a week, install posts between the pier blocks and the girders. Once all of that is attached, remove the wood posts that are buried in the dirt. While you have things opened up, remove enough dirt so that you have an 18" crawl space under the deck.