Almost any mildewicide will do the trick. Grout sealants all seem to work but I would go specifically to a tile shop to see what they recommend. I think most sealers will work but application and pr ... read more
What causes large gaps between window frames and the brick of my home? It looks like someone tried to caulk it previously, but it just pulled away again.
Expansion and contraction, as mentioned previously, is a big driver of sealant failure.
The other part that was not discussed in moisture content. Brick is largely moisture open and capillary draw of ... read more