Perforated Gutter Guard Perforated gutter guards, also known as gutter covers, are designed to dry out pesky leaves, twigs, pine needles and other debris from surfaces. Perforated gutter guard can be installed on the roof of a house, storefront or warehouse to keep the drainage system clean. This way, initially filtered water, rainwater or melted snow can flow freely into the gutters without clogging. Based on experience, we recommend giving preference to stainless steel or aluminum. Features Cost effective and practical. Completely enclosed system. Suitable for a wide range of roof types. Consistent strength and insect resistance. Invisible from the ground. Multiple installation options. Perforated Gutter Guard Specification: Materials: aluminium and carbon steel Hole size: round, 2-4mm as different clients request We also can supply cut and bend further service.