The IBU is an ini­tia­tive of build­ing prod­uct man­u­fac­tur­ers who oper­ate as a reg­is­tered asso­ci­a­tion. Club mem­bers include approx. 180 man­u­fac­tur­ing com­pa­nies and asso­ci­a­tions from the build­ing mate­ri­als indus­try inside and out­side of Ger­many, who are involved in sus­tain­able building.
An exec­u­tive com­mit­tee of 13 peo­ple is elect­ed at the gen­er­al meet­ing, with the chair of the board as its head. In addi­tion, an elect­ed pres­i­dent rep­re­sents the IBU in pub­lic and in strate­gic tasks.
The Advi­so­ry Board (SVR) rep­re­sents the high­est tech­ni­cal author­i­ty for the IBU’s work. Ten experts from sci­ence and stan­dard­i­s­a­tion, build­ing and envi­ron­men­tal pro­tec­tion author­i­ties, as well as nature con­ser­va­tion asso­ci­a­tions vol­un­tar­i­ly par­tic­i­pate in super­vis­ing con­for­mi­ty to norms and ensur­ing the qual­i­ty of the ver­i­fi­ca­tion pro­ce­dures in the IBU EPD programme.
The IBU uses inde­pen­dent third par­ties to review the EPDs. These include ver­i­fiers from SVR-appoint­ed experts from sci­ence and stan­dard­i­s­a­tion, and from test­ing and cer­ti­fi­ca­tion insti­tu­tions who have com­pre­hen­sive knowl­edge of prod­ucts, meth­ods and stan­dard­i­s­a­tion. Before they are cer­ti­fied by the SVR, they go through a super­vi­sion phase, in which they are guid­ed by expe­ri­enced ver­i­fiers dur­ing their prac­ti­cal train­ing. In addi­tion, they com­mit them­selves to con­tin­u­ous fur­ther train­ing with­in the con­text of the IBU programme.