Back Priming Pine Siding

I would strongly suggest priming the front back edges and ends of your pine siding with an oil based exterior primer before installation.

Back priming pine siding.

The best primer for pine like paint primer comes in a variety of bases. Now if you are like me you are wondering where is the trapped moisture coming from. Back priming helps prevent paint from peeling by reducing the amount of water vapor that passes through the wood. It occurs either when heated or air conditioned air from the house radiates out and meets the cold or hot outside air.

Oil based primer blocks stains and fills pores well but it s noxious to use it dries slowly and it creates hazardous. The pine clapboards we primed with bin could have had a high moisture content and also probably moved a fair amount with seasonal changes flat sawn vs. Not only does back priming prevent rot it prevents bowing cupping. Back priming siding yes you should always back prime as it will balance the wood.

Back priming natural wood siding helps control rotting mold build up cupping and movement in the wood ultimately giving your siding and your stain finish more longevity. Where is the trapped moisture coming from. All siding takes on seasonal moisture from sources as diverse as direct rain wicking and vapor diffusion through the wall assembly. I will also slow down the transfer of moisture which if not done can cause warping.

Back priming helps reduce wetting up the back side. Back priming natural wood siding helps control rotting mold build up cupping and movement in the wood ultimately giving your siding and your stain finish more longevity. Apply one coat of primer paint to the back sometimes called back priming edges and ends of siding boards before the cedar is installed. Back priming consists of applying a coat of primer to the reverse side and edges of boards before installing.