Forest product market analysts expect prices for lumber and building panels in North America will remain strong for several years despite recent price declines after an unprecedented surge to record high levels over the summer.  Ongoing robust demand for building products from both new housing and home renovation will be driven by the tight inventory and advanced age of existing homes for sale in the United States, along with low interest rates and untapped home equity, analysts from Forest Economic Advisers said Tuesday on a conference call discussion organized by CIBC.  Meanwhile, they say ...