51.   Or if you purchase a clothes dryer, you will have to install a duct to carry the hot air through an exterior wall.

52.   Pale yellow paint peels from the exterior walls.

53.   Panels of green glass pierce the exterior walls, appearing on both sides.

54.   Q. Wood shingles are decaying along the bottom of my exterior walls, two or three rows up.

55.   Q. I want to put shingles over old clapboards on the third-floor exterior walls of my triple-decker, where the clapboards are at their worst.

56.   R.P. is rehabilitating an old house and wants to put vinyl siding on the exterior walls.

57.   Q. I am reshingling my exterior walls.

58.   Q. I have a big problem with the exterior walls of my bedroom, in a brick house that is uninsulated.

59.   Semitransparent stains are designed for exterior walls, and not specifically for outdoor furniture or decks.

60.   Sometimes mildew appears on exterior walls and maybe ceilings, even in corners, where the surfaces are cool.