(a) Some policies cover only “named perils” — in other words, if the “peril” (the cause of the damage) isn’t listed on your policy, it isn’t covered. This is generally referred to as a standard policy.
(b) Other policies cover named perils on the contents of your home and “all risks” on the building. “All risks” provides insurance for losses due to a wide range of causes. But instead of listing what is covered, an all risks policy lists what is EXCLUDED, or NOT covered. This is generally referred to as a broad form policy.
(c) Still other policies cover all risks on both the building and its contents, but is still subject to some exclusions. This is generally referred to as a comprehensive policy.