Order about 12 in.
Roof framing around chimney.
Readers of this article should also.
Make a sketch locating the chimney within the perimeter.
Some lumberyards stock a dormer flashing.
More than the width of the chimney.
How to frame chimney opening trusses 1.
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.
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.
We are proposing that code allow the space to be filled with non combustible insulation.
Amend your truss.
Revise your truss spacing for a chimney opening from 24 to 48 inches wide by flanking the chimney opening with.
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.
Measure the top of the trimmed box taking dimensions carefully.
Roofers call these shingle tins.
Mark the subfloor as indicated on the blueprints for the fireplace if the chimney and fireplace await construction.
You ll need one for.
Install step flashing and roof shingles as usual.
If necessary frame in a cricket on the uproof side.
Framing the chimney chase.
Typically uses 2x4 structural members sheathed with osb or plywood exterior building sheathing.
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.
Measure mark cut and install your regular ceiling joists typically 2 by 6 lumber or larger above the doubled.
Prebent step flashing 8 x 8 in.