Roof Framing Around Chimney

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Roof framing around chimney.

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. Measure the top of the trimmed box taking dimensions carefully. Roofers call these shingle tins.

Amend your truss. 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. Plan your truss layout on a sheet of graph paper noting the gable ends at either end of the roof and the location of. How to frame around a brick chimney above the ceiling 1.

Some lumberyards stock a dormer flashing. 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. If necessary frame in a cricket on the uproof side. Framing the chimney chase.

Order about 12 in. More than the width of the chimney. Mark the subfloor as indicated on the blueprints for the fireplace if the chimney and fireplace await construction. 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.

Revise your truss spacing for a chimney opening from 24 to 48 inches wide by flanking the chimney opening with. Readers of this article should also. Install step flashing and roof shingles as usual. 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.

Typically uses 2x4 structural members sheathed with osb or plywood exterior building sheathing. In addition to the saddle you ll need the following sheet metal parts see figure a. How to frame chimney opening trusses 1.