I went to help with the chimney construction!
The other day, I visited the house of a buyer of chimney components in Ashiya City, Hyogo Prefecture.
It was an emergency situation with only three days left until the scaffolding was dismantled for DIY construction, so I helped a little.
This is how it looked at that time.
The roof tiles are not fixed with nails, so you can easily remove the rest by lifting the first one and dragging it out.
It's easy to repair and replace this kind of tile!
Under the western tiles, there is a cross bar for hooking, but it was an old roof with soil to stabilize the tiles.
Of course, there was no asphalt roofing or rubber roofing underneath, but a thin cedar board roofing material.
Underneath that was a cedar 12mm thick nojiku board.
It seems that the tiles are basically going down a little when it's a storm.
It is absorbed by the groundwork and dried when the weather turns, so rain leakage is less likely to occur.
It's old wisdom.
In addition, remove the tiles and drill a chimney hole to install a new roof support bracket.
This bracket is cut from a single stainless steel plate.
It is stronger than ordinary roof support brackets.
Therefore, construction is possible without any reinforcement, so construction work can be saved.
Insert the heat insulating double chimney and fix it.
After all, work on the roof is especially easy with two people.
While one person is firmly supporting, the other is fixed.
Photo looking up from below.
The cut in the eaves of the ceiling board is shallow, so it will be cut out later from the indoor side.
Keep at least 5 cm away from flammable materials.
Click here for the concept of distance during construction
Since the tile is not stable, it is reinforced with a 35 mm square.
After this, I put the clay I bought to stabilize the roof tile.
I served it on the square material.
My hands are full of clay around that area, so I can't touch my smartphone and take a picture.
After all, good photos and bidets cannot be taken without a shooting staff other than one more worker.
The first day's work ends here.
I put the flashing on once.
There was no rain forecast, but rain measures are necessary to sleep soundly.
For the time being, I used a paint curing sheet that I had around me to protect it from the rain.
Resume work the next day
Attach a blade for concrete and cut the tiles to restore.
I made it like a breakwater with the surplus clay so that even if the rain gets in, it will run off.
I was able to restore it with a good feeling.
I also removed the tiles.
I put aluminum-based flushing under the ridge tile.
With this, there is no need to worry about the rainwater flowing from above getting into the bottom.
Since it is an aluminum base, it can be bent freely to some extent, so construction is easy.
Restoring ridge tiles.
The ridge tile can be removed by untying the copper wire fixed to the base.
When putting it back, insert a copper wire into the hole in the ridge tile and wrap it around to fix it.
I apologize for the lack of pictures.
It is recommended to remove the chimney along the ridge, because there is less concern about rainwater from above.
On the other hand, the eaves (near the rain gutters) are prone to leaks because the rain flows down like a river when it rains heavily.
In addition, when there is a strong wind like a typhoon, there is a risk that the rain will be pushed in even if you do not normally have a leak.
This leads to leaks.
In that respect, it is recommended if it is close to the ridge (top part) because it is safe.
The lower part is deformed into the shape of a roof tile with a rubber hammer.
Double-sided butyl tape is attached to the back and adheres to the roof tile.
In addition, a flushing sheet is attached to both sides and the bottom to prevent rain.
This sheet has butyl tape attached to the entire back surface from the original.
And since it contains an aluminum mesh sheet inside, it will hold its bent shape.
Easy to use as it can be cut with scissors.
Products with a width of 1 meter are sold in units of 10 cm.
About 1 meter was bought, and the surplus part was used up for repairing roof tiles.
Finally, caulk around the chimney and flushing to prevent rain.
The silicon sealant sold at the home center has a heat-resistant temperature of 150 degrees, so there is no problem, but if you are worried, please use heat-resistant caulking.
It doesn't look very beautiful when viewed from above, but it looks like this when viewed from below, so it's not bad.
Thank you for your hard work on DIY work!
Chimneys must be at least 60 cm taller than those within 3 m of circumference and must protrude at least 90 cm above the roof.
This will give you the height you need to be unaffected by the wind and to extinguish the occasional sparks from the chimney to the soot that builds up on the roof.
However, this is only a manual approach.
It must be determined according to the degree of wind in the area and the structure of the building.
Please contact us if you would like to know more.