M-D Door Sweep Heavy duty Series: Ultra 2-1/4 in Width 36 in Length 0.2 in Thickness Bronze UL Listed ADA Approved With Vinyl Seal For Residential Applications. Energy loss through the bottom of doors is the most commonly addressed area to improve your home or buildings seal. Sweeps are installed on the face of the door so that a seal is formed when the door is closed. These products are easily installed and need to be regularly replaced to ensure the building is insulated. M-D Building Products offers a number of different finishes and technologies to best suit your individual home sealing application. Energy loss through the bottom of doors is the most commonly addressed area to improve your home or buildings seal. Sweeps are installed on the face of the door so that a seal is formed when the door is closed. These products are easily installed and need to be regularly replaced to ensure the building is insulated. M-D Building Products offers a number of different finishes and technologies to best suit your individual home sealing application.