This is my first post, been reading these forums for probably 20 years.
Let me explain my issue and see what everyone thinks I should do.
My home was built in 1883, brick construction, stone foundation. The entryway porch is inset so that it is covered on 3 sides by walls & the door. The previous owners placed some of the wood tile on the porch. There is a finished basement in which the porch is built over.
The porch is constructed of what I assume is a mortar bed, due to what I saw in the basement prior to finishing the ceiling. It appears to be like what you would find under a bathroom floor in a house of this vintage.
When I finished the basement below it, I did not notice water entering but now have staining on the drywall. During a recent rain, I noticed that I get water pooling on the interior wall-side, which would be an obvious cause of the leak. I’m sure the house & the mortar bed have settled over the course of 140 years!
With the background out of the way, I would like some suggestions for how best to make repairs to eliminate any future leaks.
I have my ideas, from reframing with a slight slope, 3/4″ plywood, moisture barrier (like a shower pan liner), Hardiebacker with HydroDefense (exterior rated, but not for Missouri), & finish with porcelain tile. Or, something that I’ve never done, a new mortar bed.
Please let me know your thoughts. I’ve added a couple of pictures of what I’m dealing with.
Working within a small footprint, this remodel for an intergenerational family incorporated simple elements to open up the space both inside and outside.
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