Copper Chimney Flashing on brick-and-mortar chimneys. - Glen Rock, NJ
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- Опубликовано: 17 июн 2023
- A quick explanation, replete with shots of some of our live installs, of how Mattsson Roofing installs copper chimney flashing on our residential brick-and-mortar chimneys.
Copper is typically the best metal to use on brick-and-mortar residential roof installs. Aluminum is acceptable also (shown in one of the outtakes in this video), BUT a chemical reaction can sometimes occur between the aluminum and mortar which can degrade the aluminum flashing over time. Copper flashing, conversely, does not degrade when in contact with mortar.
The more you know!!
Stepped counter flashing can pull away from the brick at the vertical ends, straight cut it won't ever happen
why not step the flashing? would it be better cut the mortar as opposed to the brick?
How much did that cast the home owner another grand ? Seems Overkill .
You don't know what you are talking about. The reglet is the way you bend the copper flashing not the cutting. The edge that you bend in the copper going into the brick is returned at the back edge 1/4". The cut in the masonry should be made 3/4 ", all of the dust should be cleared out, and the cut joint should be caulked before the metal is installed. Lead wedges should be installed to hold the copper pieces in place. Then the joints should be caulked with the same caulk that was installed as the pre-caulk.
Noice! But why so rude at the start, you could have just stated the important. I dont like the lower left corner, seems like water can get in cause they didnt follow the order of laying shingles....they did it on the right. I prefer also to do it with a seperate part of metall he did it on one go not preventing the expansion of 2 materials and in this case even two seperate parts of the construction, the metall will "blow out" over time. For whatever reason he doesnt mention that the gutter has to be copper to even think about doin this.
Now a days it is better to make a straight cut into bricks. The bricks are fine when cut.. lol
Most shingle manufacturers even tell you that a straight cut is more than fine.
Lead is what you should be using for flashing and it should be stepped and inserted into the beds of cement
Oh. Don't cut into the brick. Every brick that got cut is compromised. Tuck it in the mortar and step it on the slopes.
I dont like the lower left corner, seems like water can get in cause they didnt follow the order of laying shingles....they did it on the right. I prefer also to do it with a seperate part of metall he did it on one go not preventing the expansion of 2 materials and in this case even two seperate parts of the construction, the metall will "blow out" over time. For whatever reason he doesnt mention that the gutter has to be copper to even think about doin this otherwise the copper particles will actualy "eat" the living crap out of whatever else material the gutter is from...also copper particle mixed rain gonna "clean" the roof underneath maybe even damage the shingles (but im not into shingles cant say that for sure), meaning its gonna look terrible after like 10 years. Also copper is pretty pricey around where im from...meaning like tripple to quadriple the cost of aluminum or zinc.
All that said, i did a church around 1400 m2 out of copper and loved it, that material is so forgiving and you can bend it into all kinda shapes, also lasts a life time if done properly.
BTW there is a costy way to "Caulk" the part between metall and chimney for a lifetime! If you buy lead strings (a little bucket costs around 400Euro and you can caulk around 4m with it) and hammer them into a groove, it lasts aslong as the copper. (european churches do that...well not anymore cause they are also running out of money)
Edit: I still gave a thumbs up cause you posted it and shared craftsmanship to the world. And im always curious to see what other countrys are doing.
Thank you Bill!
What a load of rubbish
Total wrong
Shit