What do you paint your logs with ? and How often ?

We don't paint them with anything unless requested to do so.  In these days of environmental awareness some customers prefer to let their logs turn a natural grey.  This is the most natural  and requires almost zero maintenance and has the least impact on the environment.  Other people like the "blonde, fresh peeled look". This look will require a wood finish of some kind and re-coating every 3  to  7  years depending on how  much  strong sunshine you get at your particular location and how "new" you want to keep it   looking.  Its the ultra violet rays in the sunlight that breaks down a wood finish.  The more  pigment (color) a wood finish has in it, the better it resists U.V. rays.  So, a dark color will tend to last longer, a "clear" will deteriorate the quickest and require the highest level of  maintenance. Quite often we  use "Sikkens" products,  Cetol 1 on the exterior (an orange color) and an "interior clear" for the inside