I'm currently fixing up my house in preparation for some siding work. I've found that in one of the hallways, the bottom sill plates have rotted out due to water splashes from the back. This seems to be a recurring problem, and it was made worse by the previous stick-on tiles that were left under the sill, allowing moisture to seep in. I've confirmed that this area isn't load-bearing since it was added as a mudroom. My plan is to pull up those tiles and replace everything with pressure-treated wood. I'm looking for advice on the best type of flashing or sealant to use for the wood-to-concrete transition during this repair.
2 Answers
You might want to check out a product called Liquid Nails for your wood-to-concrete application. It’s super strong and designed for bonding different materials. Just be sure the surfaces are clean before applying. It’ll give you a solid seal!
It sounds like a solid plan! When you’re replacing the bottom plate, definitely use some kind of gasket or membrane underneath to create a good seal. For the flashing, I’d recommend using a high-quality rubberized sealant around the edges where the wood meets concrete. Something like a polyurethane or a siliconized acrylic caulk should work well. Make sure it’s designed for exterior use to handle those moisture issues!
Good call on the gasket! It’ll help with movement and moisture. If you’re worried about water getting under that plate, consider adding a barrier beneath it too.