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Question DetailsAsked on 6/8/2015

what is the best sealant to use on cedar siding in new england

I am going to clear Finnish my house that is natural cedar siding and want to know the best product to use in the northeast

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1 Answer


In my book - for a refinishable sruface, Olympic Sealant, or Stain and Sealear if coloring it.

For absolute best protection but MUCH messier to work with and retains a slightly sticky feel to it and is not real dirt-resistant, though does protect the wood to the hilt - linseed oil based log oil. On siding can produce an uneven coloration though due to variations in the wood and any prior product on the surface, so recommended only for new construction or for logs, rather than shakes or shingles or plank siding.

A note - read up on cleaning (i.e. cedar fuzzes and cuts VERY easily with pressure washer and VERY pronounced patterning is there is the least bit of pressure washing crosswise to the grain, so needs EXPERT pressure washign technique with low pressure, or just soap and hose cleaning. Also, cedar hold water VERY well, so need SEVERAL days of good drying weather (sun or warmish and dry air breeze) to dry, otherwise you will get a spotty surface coloration and luster if you apply finish over even slightly damp cedar. In most areas (unless near beach or such with blowing dust) washing can be up to a month or so before the finishing, and of course the cleaning can be done in dampish conditions, then wait till nice dry weather to appluy the finish.

Also - do NOT stop in mid-board - work along the planks end to end rather than in squares like you would paint a wall, so you don't get a stop mark in mid-plank anywhere. And if spraying (best for cedar, especailly if rough cut) or rolling, be prepared to brush out thicker spots and runs IMMEDIATELY - you generally cannot go back 5 minutes later to brush it out - gels quite quickly, especially if breezy.

Remember to start on least visible parts of house or maybe chimney (if cedar sided) to gezt your technique right before moving to the front.

Answered 4 years ago by LCD

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