Roofing is a critical aspect of building construction for many reasons. Firstly, a roof protects the structural framing from the elements: water, snow, rain and other weather-related damage. Secondly, a roof protects the interior of a structure from rain and other natural weather-related damage. Thirdly, a roof protects the interior of a structure from intrusion by external objects, such as skylights and air conditioners, as well as making the attic space easier to use with built-in shelving and cabinets.
The roof, therefore, is often one of the largest expenditures in a home improvement/urb conversion project. Roof accounts for approximately 30% of the total cost of a house, and the value of property decrease accordingly. A well-installed roof also adds to the general attractiveness of a house. In addition, a well-installed roof also has many insulating properties, especially in cold climates where roofs with superior insulation properties are becoming increasingly popular. The purpose of this article is to discuss the different types of materials used to install a roof, both for commercial buildings and homes.
One of the most common types of roofing materials is tar/clay tiles. These tiles are fire resistant, slip-resistant, heat reflective, and easy to install; they can be used for either internal or external applications. Tar/clay tiles are lightweight and therefore are often used to install roofs in both domestic and commercial applications. However, these tiles lack the insulation properties of other materials such as slate, tiles, and metal roofing materials. Moreover, because tar/clay tiles are not flexible to changes in pressure, they are more likely to develop cracks and leaks under stress.
Another common roofing material, slate, is relatively lightweight compared to tar and clay tiles. Slate also possesses certain positive aspects, such as its fire retardant and water-resistance properties. However, there are disadvantages associated with this type of roofing materials. For instance, a minor, but annoying problem that has emerged with slate roofs is pitch dimpling or “damp spots”. Pitch dimpling occurs when one side of the roof gains an additional degree of slope than the other side. Usually, all sides develop equal pitch, but occasionally one side will gain an unequal amount of slope.
Another type of roofing material used for both residential and commercial applications is flat roofing material, also called flat roofs. This is the most commonly preferred type of roofing material, but it has some significant disadvantages. One major disadvantage of flat roofs is that they do not provide good insulation or have good water-resistance properties.
Other types of roofing material include the following: slates, clay tiles, gypsum blocks, shingles, metal, asphalt, insulated roofs, and concrete. These various types of materials have their own advantages and disadvantages. Each of these different types of roofing material has different pros and cons dependent upon factors such as the application, size, structure, and materials used. It should be noted that slates are the most expensive type of roofing material because they are most often made from clay or slate, which can increase the cost of installation greatly. Also, clay tiles and gypsum blocks are susceptible to algae and mold, which can significantly decrease the life of the roof.