REAL _ Cathedral ceilings prone ESTATE _ to condensation stains Look carefully at the ‘inside of the affected walls and seal all possible convective paths with caulking, using either regular caulkâ€" ing for cracks and joints _ between materials or foamâ€" ing caulking for the bigger holes. Put closed cell neoprene As warmer spring _ weather arrives, the frost melts and water runs down and out between the siding boards. (Continued from page 10) A. To cover the water stain, use BIN and paint over it as Once the roof leak is repaired, how do I cover up the water stain? gaskets behind all electric box covers. And see what hapâ€" pens next spring. Bad seams Q. We are about to reâ€"decorate a room that has not been used in many years. There is a water stain on its cathedral ceiling where the roof leaked at some time. Send questions to him in care of this newspaper. Those of general interest will be answered in this column. Henri de Marne, a remodelâ€" ing contractor in Washington, DC for many years, is now a housing conâ€" sultant and presiâ€" dent of Henri de Marne Associates Inc. Reâ€"tape the joints and reâ€"stipple them; it may be difâ€" ficult to match the existing texture. To repair the drywall seams covâ€" ered with stippled paint, you may have to remove the paint in the area to be worked on. This can be done using Zinsser‘s Textureâ€" Off. Buy it in paint stores. you paint the rest of the ceiling. But are you sure the stain is due to a roof leak? Cathedral ceilings are prone to stains from condensation and that could be more serious in the long run.