How To Sand And Refinish Cedar Siding
Mist it with water if the cleaner starts.
How to sand and refinish cedar siding. Keep the cleaner wet to ensure its effectiveness. The full strength solution should be strong enough to break down and remove failing coatings from the siding. This procedure will greatly increase the coatings performance but will not detract from a smooth finish. Refinish the rough cedar every year or two.
1 connect a pressure washer to a garden hose and pressure wash the siding to be sanded. Cedar siding though durable and able to maintain a good finish for a long period of time does sometimes get damaged and it is certainly not completely immune to rot no matter how well it has been treated and maintained. Don t use polyurethane on rough cedar as the wood s coarse nature will prevent the sealer from bonding properly. Cover cedar siding with primer to keep any tannic acid or natural red coloring from.
Department of agriculture s forest services laboratory recommends cleaning cedar shingles with an oxidizing bleach as opposed to a household bleach to avoid damaging the wood while you can use household bleach to kill mold and algae it tends to make the cedar shingle s surface. Cedar shingles can also grow moss and algae or develop iron staining which requires periodic cleaning. Prep the cedar siding by cleaning it with a bleach and solution. On flat grained wood the surface should be scuff sanded with 50 60 grit sandpaper.
Check the cleaner every 15 minutes. Over time cedar siding can become discolored and the surface degraded due to weather dirt and various other wear and tear. Stop to stir the stain every 10 to 15 minutes or the tannins will settle near the bottom of the 5 gallon bucket. Sand it to remove the loose surface particles.
Use a 15 degree nozzle on. Cleaning and sanding is the best way to prepare the cedar siding for a new finish. Leave it on longer than 30 minutes if needed. Semi transparent water proof oil based stain will adequately seal.