Attic Draftstop Door Type R302

Each side of draftstop approximately of equal sizes there are some points to be made about the draftstoppingrequirements.

Attic draftstop door type r302.

This self closing and self latching access door allows for access from both sides of the door. Under the 2010 crc is attic draftstopping required under cbc 717 4 sfr attic areas 3000 sf would require it. 2 if the assembly isn t concealed an open floor ceiling assembly above a. 718 4 draftstopping in attics.

In combustible construction draftstopping shall be installed to subdivide attic spaces and concealed roof spaces in the locations prescribed in sections 718 4 2 and 718 4 3. This self closing and self latching access door allows for access from both sides of the door. As per ul standards once the installation is complete and the provided springs installed this door will be self. Wall assemblies need not extend through attic spaces where the ceiling is protected by not less than 5 8 inch 15 9 mm type x gypsum board an attic draft stop constructed as specified in section r302 12 1 is provided above and along the wall assembly separating the dwellings and the structural framing supporting the ceiling is protected by.

But not under crc. The drd access door is not insulated. The space between the ceiling beams of the top story and the roof rafters. Our door provides access through draft stop spaces in the attic while also preventing backdrafts between sections.

If you want a draft stop ceiling access panel that has a lot of benefits to offer best access doors has it. The nystrom draft stop door is a non rated access door designed to provide access through vertical openings of draft stop spaces in the attic while preventing a back draft from one section of the attic to another. Draftstopping is required in concealed spaces in type v combustible construction to subdivide attic spaces. R302 12 draftstopping in combustible construction where there is usable space both above and below the concealed space of a floor ceiling assembly draftstops shall be installed so that the area of the concealed space does not exceed 1 000 square feet 92 9 m 2.

The 2010 crc r302 12 provides requirements for draftstops at floor ceiling assemblies. In order to meet ul requirements it is self closing and self latching. It comes with a 1 flange for an easy flush installation on any type of surface material. The scope of this project is to evaluate draftstopping in concealed combustible attic spaces.

Ventilation of concealed roof spaces shall be maintained. The only place i can see where attic draftstops are referenced in the crc is at section r302 3 for two family dwellings.