what type of roofing material should i use to lay flag stone in the low slope porch?
i want to install flag stone in my deck
right now the deck is with torch roofing material but i want to lay stone. please somebody recommend is there any material i can use so does not leak
There are two problems with this idea. First of all is the weight. Flagstones are heavy and this presents a dead load, (it is there all the time) that may stress the capacity of the roof. Any material of weight will add to the load.
The second issue to consider is that this kind of approach is also going to press into the torch down material. You won’t necessarily notice when the edge of a flagstone when stepped on presses into the material.
Flagstones can also get very hot and on a roof where there is no heat sink below them they will probably get very very hot. There is a reason why boardwalks are made of wood.
For these reasons the best approach is usually to put down some kind of wood deck that doesn’t sit directly on the roofing material and is easily removable for re-roofing. But I have also seen boardwalk like sections made to sit directly on the roof.
Flagstones are typically set in dirt, sand or concrete. All of these materials will tend to be hard on the roof and difficult when faced with re roofing.
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There are two problems with this idea. First of all is the weight. Flagstones are heavy and this presents a dead load, (it is there all the time) that may stress the capacity of the roof. Any material of weight will add to the load.
The second issue to consider is that this kind of approach is also going to press into the torch down material. You won’t necessarily notice when the edge of a flagstone when stepped on presses into the material.
Flagstones can also get very hot and on a roof where there is no heat sink below them they will probably get very very hot. There is a reason why boardwalks are made of wood.
For these reasons the best approach is usually to put down some kind of wood deck that doesn’t sit directly on the roofing material and is easily removable for re-roofing. But I have also seen boardwalk like sections made to sit directly on the roof.
Flagstones are typically set in dirt, sand or concrete. All of these materials will tend to be hard on the roof and difficult when faced with re roofing.
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