I noticed from several of your responses to people interested in covering up their exterior log homes with siding to be careful to treat rotting logs first. What is the product you recommend for treating rot? Secondly, we are thinking of sheathing the exterior of our log home and we like the look of stucco. What do you think about a layer of Tyvec, firring strips, Rigid foam board and then using an acrylic based stucco instead of the traditional cement based product?