|
Building contractors can choose any of the multiple specialties that are professionally involved in building houses. Special skills are required in order for a home to be built safely, effectively, and in a timely manner. The expertise of roofing contractors is met with the latest tools, safety equipment, and materials so that houses can be properly protected. Because of our modern technology, our culture has been able to benefit from the many other cultures around the world that have virtually been separated before the days of modern communication. With that additional knowledge, roofing contractors and product manufacturers work to provide as much protection for a house for as little money as possible. Most houses these days are roofed with Toronto roofing shingles, most of which are made of asphalt. The producers of these asphalt products are many, for the demand for inexpensive products is very high. Of all the asphalt shingles that are available for residential application, none is more common or as inexpensive as the three-tab shingles. These materials are the easiest to work with, easiest to acquire, and easiest for residents to find a contractor who can repair or replace them. Being affordable and highly accessible, three-tab shingles can be found on a significant percentage of homes built within the last 40 years. Working with these Toronto roofing shingles involves the usage of other preparatory materials before the shingles are installed. Felt paper, or underlayment is applied to the decking of the roof. This underlayment serves as the roof's final defence against moisture. This material is soaked in tar and thoroughly dried, turning the entire roll of paper into an effective sealant. Even without the rest of the roof completed, the underlayment serves as ample protection against the elements. After the underlayment is all applied, then metal flashing will be used. Sheet metal flashing is installed on top of the underlayment at the parts of the roof that will be more vulnerable to moisture than other parts. For instance, the valleys of the roof will be much more vulnerable to moisture than the ridges, because the valleys will naturally collect more runoff. With the metal flashing applied to the valleys and corners where surfaces like the vents and chimneys meet with the roof's surface, the shingles will be applied starting at the gutters. Careful measurements must be taken in order to ensure that the rows of shingles will end up evenly at the ridges of the roof. Starter strips are a special type of Toronto roofing shingles, because they allow the rows of shingles to overlap evenly until they finish at the ridge. As the rows are being laid and fastened to the decking, the upper row will overlap somewhat onto the lower row. The area of contacted surfaces between the upper and lower rows are sealed with caulking, so that moisture does not get underneath them. At the ridge of the roof, special shingles are needed in order to prevent moisture from getting underneath the rows of shingles from the top. When the contractors are working with high quality Toronto roofing shingles, they will be choosing between architectural shingles and laminated shingles. The advantage of these shingles is that they will provide much better protection against all sources of moisture, and they will be even better suited to stand up to the potentially damaging power of high winds. There are many homes around the country that have had their roofs damaged by high winds because they did not invest in materials that were rated for that kind of environment. Laminated shingles may be rated to withstand winds of over 200kph, enabling them to survive even a hurricane.
Related Articles -
roofing, shingles,
|
