Fireplace Chimney Chase Construction

We also recommend to insulate the ceiling of the chase just as if it were in the attic space.

Fireplace chimney chase construction.

Sketch dimensions of chase if you do not have an architectural drawing to follow. The flue connects the top of the smoke chamber to the roof through the middle of the chimney. Called kickouts these keep water from running behind the cladding below and into the wall assembly see images 1 2. Typically uses 2x4 structural members sheathed with osb or plywood exterior building sheathing.

For chimney chases built into gable walls we install a partial diverter see image 2 again extending the sloped surface several inches beyond the corner see image 3. 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 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. A header essentially a 2 by 4 transom on chase front creates an opening for fireplace or insert.

Prefabricated fireplaces factory built or prefabricated fireplaces are relative newcomers to the fireplace scene. 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. Framing the chimney chase. Build chase of fireplace just like any other wall structure by placing its uprights between plates and top plates to create a large box.

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. As noted in the previous section it may be made of either brick or metal pipe. Kickout flashings we always install diverter flashings wherever a roof intersects a wall. Chimney chase a fireplace chase is essentially a knock out area of structure that hides a metal fireplace or cement blocks in a fireplace.