Don Vandervort, Head Homeboy, has written more than 30 DIY home improvement books, been a segment host on HGTV, served as MSN.com's home improvement expert and written countless magazine articles.
The fact that all siding paint produces a slight chalk-like substance is fine: This allows a good rain to rinse dirt off the siding. Excessive chalking, on the other hand, dulls the paint's sheen and color. Power washing siding may solve the problem; if not, you'll probably have to repaint.
