We had a structure fire a couple of weeks ago. We went offensive and kept it to the void space above the living room and behind the wall of the upper bedroom. It got into the roof and was trying to travel. The roof was composed of 1x6 slats with three layers of wood shake shingles with one layer of tar shingles on the outer most layer. We have an old FMC with a high pressure pump that would peel up the top layer of shingles but that still left the wood shingles. Over an hour was spent just trying to peel up the wood shingles with shovels and pry bars. Here is my question. How would you get down through the layers of shingles efficiently to ensure that you have stopped it?
Personally we use the Chainsaw with a carbide tipped chain. Works great even through nails. And we never have a had a problem with speed of use. That is as long as someone that knows what they are doing is on the saw. But a lot of us have worked in the woods for years either for firewood or for the logging industry. So most of us know how to handle a saw.