How To Repair Rotted Window Sills

He brushed on an exterior oil-based primer, then two topcoats of satin latex. But the real secret came last: he did not caulk the bottom edge of the sill where it met the brick. Many people make that mistake. Caulk there traps water. Instead, he left a ⅛-inch gap—a “weep path”—so any future moisture could escape.

Hendricks sanded the whole sill smooth—old wood and new epoxy together—with 120-grit, then 220. Dust flew. The patch became indistinguishable from the original under a coat of primer. how to repair rotted window sills

To repair a rotted window sill, you will need the following materials: He brushed on an exterior oil-based primer, then

And so he told himself—and now, he’ll tell you—how to repair rotted window sills without losing the soul of the house. Caulk there traps water

Gently press a screwdriver or your fingernail against the wood. If it sinks in easily, you have rot.