This episode of “Building Knowledge” covered what Building Owners and Managers, and Homeowners, should look for regarding their Windows and Doors as Spring and Summer approaches. Our guest was Michael Rosenberg, the president of M & R Windows, which is based in the Bronx in New York City. It was Michael Rosenberg’s second appearance on “Building Knowledge.” He was also a regular guest on the former radio shows of The Building and Realty Institute (BRI). Topics covered during the segment included: 1) When Building Owners and Managers, and Homeowners, should start evaluating the conditions of Windows in preparation for the warmer weather; 2) What a company such as M & R Windows specifically looks for while conducting evaluations of Windows after Winter; 3) As Spring approaches, the specific conditions of Windows that concern Michael Rosenberg the most; 4) The time periods involved in Window Repairs and Replacements; 5) What Window Products are currently popular in helping Building Owners and Managers, and Homeowners, achieve greater levels of Energy Conservation; 6) What M & R Windows looks for when evaluating Doors after the harsh Winter Weather; 7) The specific conditions of Doors that concern Michael Rosenberg the most as Winter comes to an end; 8) The effects of President Trump’s tariffs on the prices of Building Materials and Supplies; 9) The levels of building and remodeling activities in the New York metropolitan area in the early stages of 2025.