Do you know how to caulk—or even what caulk is? It’s something you rarely notice, but there it sits every day doing some pretty important work in your home. Once applied, this thin line of goo hardens ...

Caulking guns deliver a continuous bead of caulk to seal joints between two surfaces, such as gaps between window frames and jambs. Most caulking guns today are manual, meaning you squeeze a hand ...

Do — Inspect the window caulking, especially in the places where sealant problems are common: the bottom corners of windows and in between windows. Do — Rosie recommends polyurethane caulk, also ...