Even though each selections boost insulation and sound reduction, you will find important dissimilarities between secondary and double glazing: Jerry CoffinJerry Coffin 493k8383 gold badges652652 silver badges1.1k1.1k bronze badges 7 twelve Notice that g++ rejects %lf when compiling with -Wall -Werror -pedantic: error: ISO C++ won't assist the ‘%lf’ gnu_printf https://seymourr011axu9.eveowiki.com/user