Attic ventilation is a critical component to maintaining even temperatures in your attic all year long. In the summer it saves on the life of your shingles by keeping the boards cooler and decreases your cooling costs in the winter weather by diminishing the temperature difference which in turn prevents moisture build up in the form of condensation. Did you know that having a proper amount of attic ventilation is even required to enforce the warranty of most shingle manufacturers?
A gutter guard is always the better option. A gutter guard in general is an accessory for the gutters to prevent falling leaves, accumulation of dust, and other flying debris from entering the gutter system. Some gutter guards may have clips, which hold on to the gutter edges and can be opened like a hinged door to enable cleaning at a suitable time. Hybrid gutter guards are completely covered by gutter shingles, and have a fine mesh covering to keep out smaller particles of debris.