Proper health and safety precautions should be used during retrofit work to protect the occupants from harm. Non-climbable guards should be installed to block off access to areas of potential danger, such as openings in floors or areas with risk of falling objects. Areas of work which may contaminate indoor space with potentially harmful dust or debris should be sealed off. Consider the effect of using or storing chemicals inside the home, and inform the occupants of any compromises to the air
quality at any time. Equipment, tools and material should be safely used and stored, and out of reach of children. Be mindful not to block the occupants from exiting the building in case of an emergency.