What is the structural advantage of using ICFs and marketing a building as being stronger than a traditional stick frame building if the roof is a regular roof and will not add any extra protection to elements?

Or can the roof be made stronger aswell?

Thanks,
Patrick

I went with metal trusses as well as a standing seam metal roof. The j-bolts which attach the sill plate to the top of the walls are embedded in concrete so even if I had went with a standard wooden roof I feel it is still a much stronger system.  As far as the elements are concerned, a wooden roof system can certainly be made to enhance the potential energy saving features of the ICF.

Patrick,
The roof can be fastened securely enough to withstand most hurricanes even if you choose to use a wooden system. You can also build using a concrete roof, if you wish. Look at some of the most recent posts about concrete roofs. Also assuming the roof comes off and the interior is flooded with water you do not loose the entire structure. Remove the dry wall and any other damaged material and reinstall. Much better than starting from scratch. Therre have been structures that heve gone through wild fires and servived that were made using ICF's.

Patrick
The roof can be upgraded to 150 MPH wind loads with better materials and better installation procedures.
Tell your engineer or your truss company that you want the trusses to be designed for 150 MPH. If means changing a couple of parameters in their program is all and then they use stronger wood and bigger connectors. Cost is $1500 for 3000 sq ft.
Put 5/8" five ply structural grade plywood on for sheathing and nail it every 4" on the exterior edges and every 6" in the field with 2 1/2" ring shank nails.
Make sure you put the "H" spacers between every piece of plywood. Cover the plywood joints with Peal and Stick 6" mastic tape. This seals the joints and prevents water intrusion if the shingles ever blow off.
This will give you a 150 MPH designed roof that will actually withstand a lot more in actual condition.
These are not my ideas, they come from the IBHS Fortified house Program and the Florida 'Flash" programs. There is some very high priced Engineering behind these standards.
We have had 5 houses go through two hurricanes with no damage.
Total cost to upgrade the house should not exceed $2500.
Regards,
Joe