Is the use of concrete in the home bad for your health?

— Julie Lefebvre Cambridge, MA

Answered by Harold Remlinger, AIA, LEED AP, NCARB on February 14, 2012

Persistent odors ( off gassing?) after more than 10 weeks

— Carmen Hall Saint Paul, MN

Answered by Liberty Phoenix Lord on December 18, 2011

are there any cement floor sealant that are non-toxic

— kim Spring Hill, FL

Answered by Liberty Phoenix Lord on December 18, 2011