What Is Siding?

Siding is the exterior material applied to the walls of a house or building that is meant to shed water, protect the walls from the effects of weather, insulate, and is a key in the aesthetics of the structure. Siding may be formed of horizontal or vertical boards, shingles, or sheet materials. In all cases, avoiding wind and rain infiltration through the joints is a major challenge, met by overlapping, covering or sealing the joints, or by creating an interlocking joint such as a tongue and groove or rabbet.

Siding may be made of wood, metal, plastic (vinyl), masonry, or composite materials. It may be attached directly to the building structure (studs in the case of wood construction), or to an intermediate layer of wood (boards, planks, plywood, oriented strand board) called sheathing. An intermediate air/moisture barrier may be applied to the sheathing or a modern sheathing material also serves as an air/moisture barrier.


Windows can make a major contribution to your home’s energy conservation and comfort. Today’s windows are available in a wide range of materials. Glazing choices affect how much light they transmit, how much of the sun’s heat they allow in interior spaces, and how well they prevent the flow of heat. Windows have a huge job! They keep out the wind, water, and cold while letting in light, heat, and fresh air. And they do that while looking good. Advocate Roofing can help you with your window needs.


How you insulate your attic depends on whether you want a “cold” or “warm” roof space. A cold roof requires insulation at joist level to stop heat escaping through the unused roof space. A warm roof is insulated between and under the rafters of the roof itself. The recommended depth for insulation has been increased recently, so you may have to increase the depths of the joists or rafters if you want to create usable platforms of storage space.