Over the millennia, people have surfaced their homes with just about anything that would hold the weather out, from animal skins to tree bark. Today's roofing options are the result of eons of invention and experimentation. Some--such as slate and wood shakes--have remained virtually unchanged for centuries. Others, such as asphalt/fiberglass composites, lightweight concrete, and coated-metal tile are products of the technological revolution. Each has slightly different durability, appearance, cost, and ease of application.
Though most contemporary roofs look as though they're made almost entirely of shingles or tiles, roofs are actually waterproofing systems made up of a variety of components that work together. These systems include framing, sheathing, underlayment, flashing, and finish roofing.
Most wood shingle roofs are made from western red cedar for its durability and resistance to insect damage; some are made from preservative-treated pine or similar species.
When you roof with some of the heavier varieties of concrete tile, the roof's supporting structure may require strenghthening. Even so, most homeowners agree that the costs are outweighed by the benefits of a solid, durable, trouble-free roof that will last as long as the house.
If you are thinking about replacing your home's entire roof and are looking for a material that is extremely durable, weathertight, and quick to install, be sure to consider metal roofing. A variety of metal roofing materials is available, from familiar standing-seam sheets to specialized shingle-type products that mimic other materials, such as tile. This section of HomeTips will introduce you to the basics of metal roofing.