My home's unheated basement gets wet from rainwater, which soaks in from the above porch. The existing floor of the porch is made from 1x4 tongue and groove boards. How can I waterproof the floor of the porch so that water does not leak into the underlying basement?
I would like to add a second level to my 600 sq.ft. house. The new floor will have a full bath and two bedrooms. What are the average costs for a remodeling project like this? Thanks in advance.