A Green Machine Solar-Powered EcoSmart Roof Vent will help to Remove excess heat and moisture to protect your roof, from premature deterioration, Safeguard your attic possessions against mildew damage, Limit the growth of harmful mold, Protect your roof from premature deterioration and roof rot, Minimize peeling and extend the life of exterior and interior paint, Guard against ice damming in harsh winter climates, Promote your home's energy efficiency by exhausting, super-heated air from your attic.