Draft Stops In Attics

Just like fire blocking draft stopping aims to stop the fire from jumping between adjacent units.

Draft stops in attics.

In order to meet ul requirements it is self closing and self latching. If i provide an access to the mansard attic area i do not need draft stops. If you are looking for this relevant building material access doors and panels features products from reliable brands babcock davis and cendrex. Over the decades the size of attic space that required draft stopping has changed.

Draft stop access door. Draftstopping shall be installed above and in line with sleeping unit and dwelling unit separation walls that do not extend to the underside of the roof sheathing above. Draftstopping shall be provided in attics mansards overhangs or other concealed roof spaces of group r 2 buildings with three or more dwelling units and in all group r 1 buildings. Our door provides access through draft stop spaces in the attic while also preventing backdrafts between sections.

We do not need drafts stops in attics because there is an attic access. The current requirement of draft stops being required in attics larger than 3 000 square feet was included in the 1970 code adopted by the city of austin on dec. Basically any structure built or remolded since the early 1970s needs to have draft stopping every 3 000 square feet of attic space. We do need drafts stops in mansards because the mansard attic is an enclosed space without an access.

Draft stop access doors are installed to prevent the movement of air within open areas such as attics or ceiling crawl spaces.