A roof is more than just the “hat” that finishes the look of your home. “The roof is arguably the most important component of your house; after all, it helps protect you from the elements,” said Lance Dahl, CR, exterior product specialist with Callen Construction in Muskego. “Before you make any decisions on potential roof replacement, make sure you understand all of the various components of this type of project.”
First, keep up appearances. In planning your next major remodeling project, don’t forget to reflect on the look and style of roofing materials. “When you consider that the average roof comprises 40 percent of a home’s visible exterior, you want it to look attractive,” he said.
Next, you’ll want to sneak-a-peak. In other words, inspect your roof from a safe vantage point using binoculars. “Specifically look for cracking, curling, and missing shingles, and if your roof is made of asphalt shingles, also look for areas that seem to lack granular covering,” Lance said. “You can examine your roof from the inside, too. Visit your attic space and use a flashlight to look for water stains that may indicate a growing roof leak.”
Check with your local municipal building department to see how many times you may re-cover an existing roof with another layer of similar materials. Some communities only allow two layers of roofing material, and require any additional layers to be torn off before more roofing can be installed.
Next, provide your contractor with a picture. “At Callen, we are able to use a digital photo of your home and show you a variety of options for the house featuring different roofing materials,” he said.
Regardless of the project size, all work to be done needs to be explained in writing. “You should be given a detailed proposal that describes the type of roofing material and color; other materials to be used; and the scope of work to be done,” Lance said. “It is important to specify whether the existing roofing will be removed or covered with a layer of new shingles, and to state who will be responsible for installing new flashing and vents. Most importantly, make sure the proposal indicates an approximate starting time and completion deadlines.”
According to the Asphalt Roofing Manufacturers Association, asphalt shingles are installed on approximately four out of every five residential roofs in the United States. Asphalt products are available in two types – organic and fiberglass – and in a wide variety of colors, styles, and visual textures. Organic shingles are made of cellulose fibers, such as recycled waste paper or wood fibers, while fiberglass shingles are made of glass fibers. “Both shingle types are covered with an asphalt coating and surfaced with weather-resistant mineral granules,” he said.
While asphalt shingles are by far the most popular option, consider the alternatives. “Do you love the appearance of cedar or redwood roofing, but worry about fire safety? There are fire-resistant wood shingles, or metal and synthetic products that mimic the look,” Lance said. “Such products can also match slate and tile roofs. Real clay or concrete tiles often appear in Southwest-style or Mission-style roofs. If you desire this look, you will need to make sure your home can adequately support the additional weight.”
Finally, it’s important to vent a little. “Attic ventilation ensures that your roof has a long and functional life,” he said. While ventilation requirements vary by region, the National Roofing Contractors Association generally recommends a minimum of one square foot of free vent area for each 150 square feet of attic floor.
“Replacing a roof is a major investment, so make sure you stay as informed as possible and weigh each of your options carefully before making decisions,” Lance said. “In the end, your new roof should last at least 20 years, so it’s important that you’re happy with the products selected.”
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