Roof Framing Around Chimney

More than the width of the chimney.

Roof framing around chimney.

We are proposing that code allow the space to be filled with non combustible insulation. How to frame chimney opening trusses 1. Some lumberyards stock a dormer flashing. The plan on the left shows a code compliant chimney through floor or roof framing with a 2 air space between the masonry chimney walls and the combustible framing.

Readers of this article should also. Properly framed and constructed the portion of the chimney chase that extends above the roof surface at a height to meet the roof clearance distances will not require extra bracing. Mark the subfloor as indicated on the blueprints for the fireplace if the chimney and fireplace await construction. If necessary frame in a cricket on the uproof side.

Plan your truss layout on a sheet of graph paper noting the gable ends at either end of the roof and the location of. Measure the top of the trimmed box taking dimensions carefully. Revise your truss spacing for a chimney opening from 24 to 48 inches wide by flanking the chimney opening with. Install the siding and then cover the 1x2 furring at the top with a 1x3 or 1x4 piece of finish trim all around the box.

You ll need one for. Tools you will need for roofing from amazon bostitch coil nailer https amzn to 2u1v8e2 shingle remover https amzn to 2fzu5wf roof snake https amzn to 2. Order about 12 in. As carson dunlop associates at reviewers sketches above illustrate proper masonry construction leaves space between wood framing members and the chimney or where framing rests on or in a masonry chimney at least 12 of solid masonry should separate the chimney flue from the nearest wood framing member.

Framing the chimney chase. Prebent step flashing 8 x 8 in. Measure mark cut and install your regular ceiling joists typically 2 by 6 lumber or larger above the doubled. Make a sketch locating the chimney within the perimeter.

Amend your truss. Roofers call these shingle tins. Install step flashing and roof shingles as usual.