Galvanized roofing nails about every 6 in.
Chimney flue on roof.
2 by raising the height of a flue above nearby roofs or structures you wiil improve draft and reduce downdrafts.
The flue extender chimney caps come in stainless steel and copper in 1 and 2 heights.
When installing a chimney for a wood stove on a metal roof you ll first need to assess the position.
Traditional chimneys class 1.
A vertical line drawn along the up roof side of the chimney from the roof surface to the top of the chimney flue opening shall be at least 3 ft in height.
The venting capacity of a rectangular or square masonry flue if translated directly into actual or measured square inches of cross section is less than a round chimney flue of the same square inches of venting capacity.
The kind of chimney flue best suited to your home will depend on the size and design of the chimney.
This extension is designed for exterior use and must be installed above the roofline.
Adding the flue stretcher to the upstairs flue distances its smoke from the downward pull of the downstairs flue.
This will help determine how tall your chimney must be.
For a gas vent or type l vent this height must be 2 ft 0 61m or more.
Notice that i use the words any roof surface in this explanation.
It can be made of a variety of materials depending on the type of roof and its pitch.
Chimney fires destroy homes.
But you won t need a storm collar if there is no roof flashing.
Place the chimney where it would be related to the stove and mark the center of the chimney on the ceiling.
Along the edges or closer if necessary to flatten the metal.
Typically chimney flues fall into three categories.
That means that.
Any pipe installation above a roof that is unsupported by a chimney chase needs proper support above the roof line.
Nail it to the roof along the top edge.
Slide the prebent and soldered chimney saddle into place behind the chimney.
This is for masonry chimneys.
Within a shingle roof the flashing is expertly woven into the shingles or roofing materials to protect the seam between the chimney and the roof.
Counter flashing is placed over the step flashing parallel to the chimney.
Topping out the chimney with a cap is the same as with other installations.
For example an 8 x 8 square nominal clay chimney flue tile liner has inside dimensions of 6 3 4 x 6 3 4.
These can mostly be located on older properties being brick chimneys built to allow an open fire to be lit underneath.
Generally if you have a class 1 chimney.
Extension lengthens the roof jack connection an additional 16 in.
Next see if you can access the chimney crown.
If you have a very steep roof pitch or aren t comfortable working on your roof then this isn t a job for you.
Call a certified chimney sweep.
Flue extension 901935 features an inside diameter of 5 in an outside diameter of 8 25 in.
Seal the sides of the chimney with prebent pieces of step flashing under each course of shingles photos 4 and 5.
