Leaderboard

if your roof is felted under the tiles the polyeurethane foam or whatever they spray on cannot hope to bond the tiles together unless they cut or tear away the felt first... this could then be a good way of stabilising a failing roof - as far as the bits between the rafters is concerned! any leaks above the timbers is unlikely to be sealed leaving the timber open to attack by nasties. a few soffit vents are unlikely to help. i think this process is best suited to insulating steel based industrial type roofs and kept away from timber and tiles (probably how they have remained in business 40 yea