I have 2×6 frame construction and have log siding over that the siding is 3” at the narrow side and 6” at the fat side. I built the house in 2000 and put Messmers Timber FlexII on it> I took pressures washed it off and just put 3 hand brushed coates of Timber Flex back on it. I live in Amgel Fire NM in the mountains above 9000 feet. what should I do to help protect the finish and should I go back with a latex product after thie. I love the natural color of the ogs and do not want dark finish