Yakal and Narra from the Philippines!
A note to anyone: according to Wikipedia, these trees do exist, but Yakal is critically endangered and has literally next to nothing for info on it (Wikipedia says that it is a plant in the Dipterocarpaceae family, and that it is endemic to the Philippines, AND THAT IS IT)! And Narra is a vulnerably endangered species, Wikipedia has information on it, but they don't say anything about its lumber. Ipe is very rot resistant and is a member of the Ironwood family. I believe that it has a Class A fire rating similar to steel and concrete. It will last outside unfinished and untreated for 30 to 35 years.
I recommend Wallaba for fire resistance, especially in roofing applications. Red Diamond Wallaba Shingles have a Class A Fire Rating and have a 50+ year life expectancy without any chemical treatments.
Yes, most of them are wood, and will resist stains.
Pine is the hardest wood to stain becuase it absorbs the stain to erratically. anonymous@oola.com
Although wood is propably the most elegant for durability metal would be my choice.
Termites will eat any type of wood, as long as the wood is dead. You can get special termite treated wood that they will not eat, ask at your local timber supplier, most of them will probably have to order it in.
Cedar wood is naturally more weather resistant than maple. Cedar wood will darken and mold over time if left untreated, but it is more insect resistant and more resiliant than maple for exterior use.
Yes, there are.
The best wood for a deck is generally considered to be oak. This is a very durable and resistant wood that, when treated properly, can last for many years.
PRESSURE TREATED WOOD, CEDAR, REDWOOD
Black locust tree.
Yes. Canada produces the most wood in the world.
Petrified wood is usually silicified. Specimens could be washed with a mild detergent, small brush and plenty of water and left to dry naturally. Most petrified wood would be naturally resistant to weathering.
There are not woods resistant to carpenter ants. The ants must be destroyed by extermination. They chew through the wood to make their homes but do not actually eat the wood like a termites.