Renovating bathroom - damp advice needed

Tipster28

We live in a victorian terrace house, like many of these houses at some point in the past a single storey extension has been added at the back for a bathroom (I guess when the owner got fed up going out to a toilet in the garden!). This extension is made of brick with the walls rendered. The roof is tiled.
We plan to completely re-do this bathroom, but want to make sure we get rid of the damp issue first. Not a big issue but the room is cold and damp on the outside walls
Here's what I have planned, but appreciate your thoughts on anything else.

• Replace any broken tiles on the roof, replace the flashings at the top and the facia board at the bottom. Increase the insulation in the roof to the maximum possible.
• Take off some of the render on the outside wall and add some tanking. Replace the render once done.
• Replace lino floor with tiles on top of electric underfloor heating. Put insulating boards under the heating mat.
• Add an extractor fan.

Is there anything we can do to insulate the outside walls also? I think they are just solid brick and when its cold outside condensation forms on them.

So anything else to consider? And tips/recommendations for the above work?

ukmaggie45

You might want to investigate if there's a damp course? Our terraced house is 1902 or thereabouts, and when we had work done on the kitchen (about 35 years ago! :eek: ) we found that the quarry tiles in it had just been laid on soil. So our builder put in DPM and concrete floor.

Currently we're renovating a 1955 house (though it looks more like a 30s house, planning was granted in 1938/9 so we assume WWWII prevented the build back then), that has some single brick walls to the front, and in the master bedroom bay below window it was merely ply with render on top, then plastered inside. :eek: We now have some insulation in place on the inside, but I'm not sure what exactly. I bookmarked an insulation thing from a thread on these forums recently (sorry, can't remember which one) that might be worth looking into. Wish I'd seen it sooner! I have no experience of using it, but thought it might be the kind of thing that you might think of looking into.

Good luck with it all!

Edit: The rest of the ground floor was wood floorboards and well above ground level, it was just the kitchen that had tiles laid on earth.

Tipster28

thanks, the floor is concrete so and not damp, currently just has lino directly on top. It looks like the damp is coming through the wall and also some cracked tiles in the roof. Will get those 2 things sorted ASAP then check the damp issue before carrying on with the bathroom of course.

Any other thoughts from anyone?