 Lou Manfredini here with a HowSmartz Minute home improvement tip. If you're doing any exterior painting this summer, here's some tips you should know about. First of all, preparation is everything. Sanding, scraping, and priming are the most important steps before the finish coat goes on. Try to avoid putting finish coats on in direct sunlight and when temperatures are above 80 degrees. That way the film won't prematurely dry, which can lead to cracks. For more information, go to HowSmartzRadio.com.