Having your roof cleaned is not only an effective way to keep your roof in top shape, but it can also increase the lifespan of the roof. It removes oxidation on metal roofs and moss, lichen, and mildew. Cleaning the roof will also prevent insects from forming their habitats.
Pressure washing vs soft washing
When it comes to cleaning the exterior of your home, pressure washing and soft washing are both great options. But what are the differences between the two?
Soft washing is a type of power washing that utilizes low-pressure water to clean your home. It is a safe, less-expensive, and more effective option for cleaning surfaces.
Pressure washing involves a high-pressure pump that pushes water through a hose and nozzle. Using this technique can strip away layers of dirt and loose materials. However, it can also damage soft surfaces and lead to erosion.
Soft washing uses a chemical solution to remove contaminants without damaging the surface. For instance, it can help prevent rot and discoloration on roofs. The process also leaves the surface a bit smoother.
Signs that your roof needs cleaning
If you want to keep your roof looking its best, you may be wondering when to clean it. There are several different signs that it is time to take care of your roof.
First, consider the shingles. Most roofing materials last for about fifteen to thirty years. You should have your roof cleaned by a professional at least once a year. The purpose of roof cleaning is to remove dirt, debris, and other material from underneath the shingles. Having a clean roof means peace of mind.
Another sign is when your gutters become clogged. Clogged gutters can lead to moisture problems and mold. Moisture can lead to rot in your roof structure, resulting in expensive repairs.
You should also check your vents. Moss and algae can form on your roof. This can cause your shingles to blow off in storms. They can even weaken your wood beams.
Cost of roof cleaning
The cost of roof cleaning can vary a lot. One factor that determines the cost is the size and complexity of the roof. It is also important to consider the climate. If you live in an area that receives a lot of rain, you may need to have your roof cleaned more often.
Costs will also vary by location and roof material. Typically, concrete roofs are cheaper to clean than terracotta tiles. Roofs that have a lot of algae or moss will also require more time and effort.
Choosing the right professional will also help to reduce costs. The company should be able to offer you discounts or a package deal. However, prices can go up when there are special requests. Some companies will charge extra for removing moss or algae.
ARMA’s recommendations
The Asphalt Roofing Manufacturers Association (ARMA) recommends using a bleach based cleaning solution to keep your roof clean and free of algae. Algae grows on the limestone filler in asphalt shingles. ARMA’s recommended ratio for the bleach is a 50/50 blend of household strength sodium hypochlorite and water. You can also use an abrasive surface treatment like sodium percarbonate or even a homemade solution.
ARMA recommends against the use of a pressure washer to clean your roof. While most pressure washers start at 500 Psi, this is too much for roofs. Using a pressure washer to remove moss and algae from your roof can cause more damage to your roof. A non-abrasive, safe way to remove moss and algae is to clear the debris off your roof with a leaf blower.
