Most problems with vinyl siding installation occur when the surface has not been properly prepared or the installer uses improper techniques. Answering the most commonly asked questions about installation methods, the Vinyl Siding Institute (VSI) offers these tips: How do I avoid gaps and buckling when applying vinyl siding? Because of vinyl siding’s shrink-and-swell cycles, any fastening system must allow movement of the panels. Choose corrosion-resistant fasteners including roofing nails, pan-head screws or minimum 16-gauge staples. The key is to leave 1/32-inch clearance, the thickness of a dime, between fastener head and the siding panel. Finally, place the fastener at the center of the slot and drive it in straight and level. How do I stagger panels for the best look? Overlap vinyl siding panels by 1 inch on the face, away from entrances. Leave 3 feet or more between panel seams, and install at least three rows or courses before lining up seams. How do I cut vinyl boards without chipping and splitting? Use tin snips, a utility knife or a scoring tool to cut vinyl siding. A circular or chop saw can be used by installing a fine-tooth plywood blade backwards. Cut slowly, especially in cold weather. Wear safety goggles for all cutting and nailing operations. How do I replace a damaged panel? Unlock the panel above the damaged piece. Remove the fasteners and the damaged panel. Cut a new piece to size and lock into the course below. Finish by securing the new panel with fasteners spaced no more than 16 inches on center or to the manufacturer’s specifications. Download a free copy of the “Vinyl Siding Installation Manual” from the Vinyl Siding Institute (in Spanish or English) at http://www.vinylsiding.org/aboutsiding/installation/manual/. Straight and Level Any new siding installation is only as straight and stable as what lies beneath it. Here are some tips to consider: - In new construction, avoid using green lumber for underlayment. - Throughout installation, check horizontal panel alignment every few rows to make sure the siding hangs straight and level on the wall. - When installing siding panels, push up lightly and fully engage the lock along the entire length of the panel.