Fireplace Chimney Chase Construction

Build chase of fireplace just like any other wall structure by placing its uprights between plates and top plates to create a large box.

Fireplace chimney chase construction.

A header essentially a 2 by 4 transom on chase front creates an opening for fireplace or insert. Unlike traditional masonry fireplaces most factory built fireplaces are metal and come from the factory as complete units with a firebox a specific chimney system and all miscellaneous parts. Chimney chase a fireplace chase is essentially a knock out area of structure that hides a metal fireplace or cement blocks in a fireplace. For wind resistance if the chimney chase is passing through the roof structure rather than abutting the roof structure end it should be framed continuously through the roof structure not.

Typically uses 2x4 structural members sheathed with osb or plywood exterior building sheathing. The flue connects the top of the smoke chamber to the roof through the middle of the chimney. Framing the chimney chase. The rsf manual in the section about chases though they mean outer wall chases says.

Prefabricated fireplaces factory built or prefabricated fireplaces are relative newcomers to the fireplace scene. Construct the flue and outside of chimney. Kickout flashings we always install diverter flashings wherever a roof intersects a wall. Called kickouts these keep water from running behind the cladding below and into the wall assembly see images 1 2.

If clay or ceramic tiles are used to create the flue in a brick chimney they are laid as the exterior of the chimney is put up. We also recommend to insulate the ceiling of the chase just as if it were in the attic space. If the climate in your area is very cold insulate the chase to the top to keep the chimney warmer increase the draft and reduce creosote buildup. Sketch dimensions of chase if you do not have an architectural drawing to follow.