Formaldehyde emissions from mineral wool in building constructions into indoor air

SUMMARY One stone wool insulation product containing phenol-urea-formaldehyde binder was tested for the emissions of formaldehyde and volatile organic compounds (VOC) simulating real use in roof constructions. Results are compared with earlier published results from tests with wall constructions and to international indoor air limit values. Possible future handling by using reductions factors when testing pure mineral wool products without constructions is discussed.