Leakage Problem?

Question

There is a room in my house that used to be a garage but the previous owners changed it into a bedroom. Unfortunately, they didn't do a very good job because when it rains, the floor gets soaked. What can I do to seal it that will be relatively easy and inexpensive?

I need to clarify that it is not leaking from the roof, that part is fine. It is leaking through the ground. When they changed it they didn't seal the ground and the wall water/air tight.

Also, there is an outside door in the room; it leaks from there as well.

Answer 1

Where is the water coming from? Ground water? Where the door was? The roof?
The solutions are different depending on the source.

Answer 2

This can be a tough fix. The water is probably "wicking up" through the slab from under it if it isnt the roof or the walls. The drainage around the house needs to be improved or a waterproof membrane installed. This could involve smashing up the existing floor and replaceing it with one poured on a membrane, or you may be able to install the membrane and pour a surface slab over the existing floor. This depends on if the sills of the walls are resting directly on the original floor or if they are elevated above it some inches.
Have a contractor who knows how to work on existing houses look at it and see what they say. Make sure you get the right contractor, a lot of them are hacks who only know how to build new or rip out and replace.

Answer 3

first are there any stains on the ceiling? If there is then you have a roof leak if stain is next to the wall ajoining house wall then it could be flashing. Otherwise look outside is the ground around this room up to the siding or sloped higher away from the house. Water could run downhill into room underneith wall then across floor. Or is there a hill close to any side of building? Soil must sloape away from structure. Happy hunting.

Answer 4

sounds like you need a roofer to look at it. you dont say how long ago you bought it.