A two layer system is made up of one base layer and one torch down layer.
Life expectancy of torch down roof.
A slate roof can last from 50 to 75 years and some will last more than 100 years if installed correctly.
Two layer systems tend to last approximately 15 years while three layer torch down roofing can last 20 years or longer.
Three layer systems have a base a smooth torch down layer and a torch down layer with a granular surface.
At the cheaper end you ll find thinner metals 26 to 29 gauge with a lifespan of 20 to 25 years.
The cost is often recouped by its quality aesthetic value and lifespan.
Modified bitumen is also called torch down roofing it lasts anywhere from 10 15 years.
High end metal roofing 22 to 24 gauge is popular in northern regions due to its ability to send.
Torch down roofing is more long lasting than some other types of flat roof systems.
Advantages of three layer torch down roofing.
Most of the time torch down roofs lasts up to 20 years.
Modified bitumen happens to be the older flat roof material.
Some however can reach until about 30 years depending on external circumstances as well as the maintenance.
Well unlike other flat roofing options a torch on roofing can only last for 15 to 20 years in an average.
In terms of contribution to global climate change based on independent research with a 15 year service life four torch on roofs would need to be installed before the first one will have reached its calculated carbon neutral break even point of just under 55 years.
The lifespan of a torch down roof is one of its main selling points at 15 to 20 years.
But the installation of this kind of roof can be hazardous and costs more than the conventional types of roofing.
If you re a little dismayed here s something you need to think about.
Even though the cost is high its advantages like long life span and resistance to even harsh weather make it worth the price.
Slate shingles can cost as much as four times more than asphalt shingles.
This article describes common defects found on modified bitumen roofs such as buckling cracking granule loss improper installation details leaks.
Modified bitumen roof life defects wear common defects life of modified bitumen roof effective roof coatings.
Often you ll hear people use the term torch down roofing.
Modified bitumen roof defects wear signs life expectancy life extension by coating.
This is due to its flexibility in hot and cold temperatures as well as its resistance to water damage.
Life expectancy and cost.
