zzpm Pergola September 13th, 2018 - 12:12:11
Causes of Discoloration of Pergola roofs. Over time. Pergola roofs may get discoloration due to dirt. fungus. mildew or moisture. Also. any iron fittings may rust and cause red stains which may react with other pigments or stains. To prevent this. stainless steel nails may be used and a constant vigil kept to encourage the Pergola to stay dry. A commercial mildew remover or other multi-purpose cleaners and help keep the roof spotless. Stains that are caused by the reaction of water deposits on the wood may also be removed by washing it with cleaners. Chalking is another form of discoloration which is caused by weathering of paint or disintegrating of pigment particles. which appear as a powder. Restoration painting necessitates cleaning by paint strippers. bleachers and oxalic acid based solvents to remove stains.
The roof design on a pergola depends on the availability of direct sunlight as well as the geography and natural features of the region. Although. in earlier times. pergolas were constructed using brick and stone pillars. modern designs employ weather resistant woods such as western red cedar or coast redwood. Pergola roofs may range from simple. flat. traditional roof. elaborately curved roof. pitched roof. gabled roof or a gazebo style roof.
Moisture Issue: Less expensive materials often last longer in dry climates. while they may weaken gradually in the moist and harsh climates. Consider the amount of moisture in your local weather and long-term decay issue. Drier gentle climate areas are easy on pergolas. but the quality of wood becomes an issue whenever there is significant moisture or weather extremes.
Metal Roof. The advantage of a metal roof is that it can be adjusted to the exact size and shape of the structure. A choice of metals such as copper. aluminium or tin also helps to make an easy decision. Metals not only easy to cut and shape. they also provide excellent protection from the weather conditions. However. they also have some disadvantages such as disallowing light to enter the area or enabling the temperature to get too hot inside the area.