Pergolas have been used in dwellings for centuries, classically, to bring a shaded walkway, to connect pavilions or to allow a sitting area that enables the breeze and sunlight to filter through. This awesome addition to a home would not only add to relaxation, it may be an attractive bonus to the resale value of the house. Any open area around the house may be utilized as an invitation for a pergola. Through time, pergola structures have adapted to the area so that there is a big variety in designs. While conventional pergolas were created mainly for comfort and beauty, the present designs put more emphasis on providing protection against the harsh elements of nature like rain and snow and ultra-violet radiation.
The design of a pergola depends upon the geographical location. Based on the region, the grade or the direction of sunlight, a pergola might be a gazebo, an extension of a structure, an open patio or a veranda that has grapevines crises-crossing a latticed roof. Among the most important factors when designing a pergola is the roof structure and contour the roof design on a Pergola depends upon the availability of direct sunlight in addition to the geography and natural characteristics of the area. Although, in earlier times, pergolas were constructed using stone and brick columns, contemporary designs use weather resistant woods like western red cedar or coast redwood. Pergola roofs may vary from easy, flat, conventional roof, elaborately curved roof, pitched roof, gabled roof or a gazebo style roof.
There is a variety of Materials that might be used to roof a pergola. The selection of roofing materials are determined by the size, shape and style of the construction. The durability and robustness of this construction is dependent upon the materials that are chosen for this purpose. Currently the materials which are used for roofing include metals, plastic, fibreglass, polycarbonate, fabric, etc. The Benefit of a Metal roof is that it can be corrected to the specific size and shape of this structure. A choice of metals like aluminum, aluminum or tin also can help to make a simple decision. Metals not easy to cut and shape, they also offer excellent protection against the weather conditions. However, they also have some disadvantages like disallowing light to enter the area or allowing the temperature to get too hot in the region.