NEVER aim your pressure washer up the roof, as it can push water under the shingles. Spraying water under your shingles can both tear off the shingles and force water under them and into your home. … You shouldn’t have to pressure wash your roof any more than once every year or two at most.
Why You Should Never pressure wash your roof?
The main reason to not use your pressure washer to clean your roof isn’t that the water jets will damage your shingles. It’s just that there are better, more effective methods. If your roof is covered in leaves, moss and dirt, try a leaf blower to sweep the roof clean.
Does pressure washing a roof cause damage?
Pressure washing can cause enormous damage to your roof. When regular pressure washing companies clean your roof, they often apply up to 4,500 psi of water to your roof. As a result, the tiles can easily shift and allow a lot of water to spray underneath the tiles and ultimately shorten the lifespan of your roof.
How do I clean the roof of my house?
The ARMA recommends a 1:1 ratio of bleach to water to clean a roof. They also advise against using a pressure washer on asphalt shingles, as the force of the water can damage them. After being allowed to sit on the roof surface for up to 20 minutes, the bleach solution should be rinsed away with clean water.
Should you power wash shingles?
It’s generally not necessary to pressure-wash a shingle roof for the purpose of removing ordinary dirt and leaves, and pressure-washing can potentially damage the shingles’ coating of protective grit. A light sweeping or a rinse with the garden hose is usually sufficient, and most roofs don’t even need that.
How much does it cost to power wash a roof?
The most common method of cleaning a roof is a high-pressure wash. This service costs between $0.20 and $0.70 per square foot and is good for removing built-up dirt and debris.
Should I jet wash my roof?
They have the following advice for homeowners and roofing contractors: The use of high powered jet washes is not recommended as it can damage the surface of the slate or tile, thus reducing its expected life considerably. … We DO NOT recommend pressure washing your roof covering.
What is soft washing a roof?
Soft washing is a cleaning method using low pressure and specialized solutions (typically bleach, water, and sometimes a surfactant) to safely remove mildew, bacteria, algae and other organic stains from roofs and other building exteriors. It is so named to differentiate the method from power washing.
Does cleaning your roof damage it?
Standard, high-pressure washers can damage your roof when you’re trying to clean it. It’s important to use special equipment that does not harm the shingles and cause them to be torn from the high pressure. Reputable roof cleaning companies will also use a biodegradable cleaning solution.
Can you power wash moss off a roof?
Pressure washing: Using a pressure washer to blast off the moss, lichen, and algae is another method that some service companies use. In most cases, using a pressure washer on an asphalt roof can actually really damage the roof, removing much of the shingle grit as well as void the roof warranty.
Does pressure washing roof tiles damage them?
Using a high powered pressure washer could cause more damage than good, because the strength of the water stream can remove the finish of the roof tiles. … Additionally, there is a risk of flooding the roof/loft space when using a pressure washer, as the water will enter any small cracks or gaps in the roof tiles.
How can I make my roof look new?
Here are five tips to help make your roof look younger and better this spring!
- Clean Away Debris. Gutters full of needles and shingles covered with leaves don’t impress anyone. …
- Get Rid of Algae and Mildew. …
- Install New Gutters. …
- Repairing Edges and Eaves. …
- Replace Shingles with Better Colors.
What do professionals use to clean roofs?
Sodium Hypochlorite, Sodium Percarbonate or Sodium Hydroxide for Roof Cleaning? The most popular chemical used today by roof cleaners is still “bleach” or sodium hypochlorite. It is also the chemical of choice of ARMA, the Asphalt Roofing Manufacturers Association.
Will bleach damage roof shingles?
Will Bleach Discolor Shingles? No, bleach will not cause discoloration in your shingles, or asphalt shingles. Especially not if you apply bleach with the 50-50 mixture that we recommended above, then you’re definitely not going to deal with any discoloration.