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, Minimize peeling and extend the life of exterior and interior paint, limit the growth of harmful mold, Protect your roof from premature deterioration and roof rot, Guard against ice damming in harsh winter climates, Promote your home's energy efficiency by exhausting, super-heated air from your attic.