When used on cedar, they actually strip away wood fibers from the shingles, which dramatically shortens the lifespan of the roof. In many cases, power washing a cedar roof is actually worse for your long-term investment than not cleaning the shingles at all.
How do you clean a cedar roof?
The Cedar Bureau recommends using a solution no stronger than one-part bleach to three parts water. Apply it with a pump sprayer and let it sit for about 15 minutes before rinsing it off with a garden hose. Be sure to keep the hose pointed downward to avoid forcing water up behind the shingles.
Should you power wash cedar shingles?
Non-professionals should not pressure wash shingles. High pressure can remove wood fibers and drastically shorten the life of the shingles. Applied incorrectly, it can also force water into the places behind the shingles, which could lead to rot and mold.
Why You Should Never pressure wash your roof?
Using too much pressure when washing a roof can loosen the granules on shingles, causing those tiles to become thin and brittle. You can even loosen old and loose shingles or blow shingles right off a roof with too much pressure from a power washer!
Can you pressure wash a cedar house?
Yes, you can pressure wash cedar siding by using a low PSI pressure washer or adjusting a pressure washer to its lowest PSI setting. This protects the cedar from being damaged from too high of pressure because it is softwood.
Is Power Washing bad for cedar siding?
Power washing can be used to clean cedar as long as the sprayer is set at a low pressure to prevent damaging the wood’s soft surface. Once cleaned and allowed to dry, the wood can then be painted using a urethane-acrylic house paint. … It is unsightly, but the cedar has not been damaged.
How do you care for cedar shingles?
Cedar shingle maintenance must include protective treatments every one to three years. Without treatments, cedar shakes can degrade, buckle, rot, and even burn. To protect and preserve your roof, every few years, professionally apply water and fire repellents, fungicides, and algaecides to the shingles.
How do you use cedar wash?
Cedar Wash works great on all types of cedar or any type of natural wood. Use it to clean fences, decks, furniture, cedar siding or roofing, barn board and log homes. Add 1/2 cup per gallon of water, mix well, stirring frequently, allow solution to fully activate for 15 minutes prior to use.
Is Roof Cleaning a good idea?
One reason to clean your roof is to extend the life of your shingles or other roofing material. While algae isn’t harmful to asphalt shingles, moss is, according to ARMA. … Luckily for you, the National Roofing Contractors Association advises against any DIY work on your roof, including cleaning it.
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.
How do I make cedar siding look new again?
After cleaning your cedar to bring back its color, apply a clear exterior varnish to help sustain it. A quality weatherproofing product will prolong the fresh look of your cedar and help limit algae growth. If you would prefer your siding stained another color, choose a stain that is darker than the cedar.
What are the disadvantages of cedar wood?
- Requires Maintenance. Due to being softwood, cedar needs regular maintenance. …
- Flammable. Cedar is a flammable wood. …
- Fading Color. Changes color over time due to chemical reactions. …
- Sensitive. Cedar is a sensitive wood. …
- Weakness. While cedar is a common material in construction.
Do you need to power wash cedar siding before staining?
It is highly recommended that you treat the mold and mildew on your cedar siding before going at it with a pressure washer or brush and bucket. Honestly, your efforts will be futile if you scrub or blast away the dark spots without killing the mold first.