Ok this is how i converted my porch into a green house.
The original porch was a pretty thick concert slab with a overhang of the roof and stud banisters and braces.
Then years ago they windowed it in but in a floor and some carpet.
It wasn't used for much then i started to grow plants there, You can see my Auto plant watering system, to see the before pictures.
This is most likely the cause of the mold and the floor rotting.
And this is where this instructable begins..........
Step 1: What You Will Need
300 lbs of mortar
200 Sanded Grout
12 jugs of grout additive
Lots of Plants
Drill Mixing Rod
**lights (i plan on making my own LED lights in another instructable)