https://www.youtube.com/watch?v=vNgcSYZ04MM <div id="comment-content" class="style-scope ytd-comment-renderer"> <div id="content" class="style-scope ytd-expander">Why not use plastic skin and metal skin to layer and seal concrete/metal/wood beams to max durability of building?</div> </div> <div id="toolbar" class="style-scope ytd-comment-action-buttons-renderer"></div>
