Complete Roof replacement - most cost effective way?

My single storey 190m2 brick veneer 1990s house has been significantly fire damaged and will require a complete roof replacement along with a lot of internal framing work. Roof is to be a gable with one hip.

Im wondering if anyone here has done the costing exercise as to the cheapest solution to put a new roof on. Previously the roof was concrete tile, which I understand to be a slightly cheaper option to metal sheeting, but im thinking surely you can save big on the number of trusses required for a metal roof system v a concrete tile since its so much lighter?

Would love to hear thoughts.

Cheers

 

The roof framing supplier will plug the numbers into the computer to determine stress grades, member size & stress grades.

Tell them to provide quotes for both.

 

Thanks for the info Scott, i've began speaking with a drafty to get drawings organised for the building permit, as I understand it engineering drawings are required for the permit also.

I'd assume the engineer would be designing based on selected roof material and thus I would need to know which one to go with first? Perhaps getting some roofing quotes on the two options is first port of call?

 

Flick the roof plan to a roof framing company and get them to quote both - even If it's a budget, better than nothing.

Likewise to a roofer/tiler.

 

In Perth they are around the same for the reasons you outline - less trusses evens out the more expensive sheeting.

I will always chose a metal sheeting roof over tiles even if a little more for a number of reasons - low maintenance, more weatherproof, lighter colours available and more secure.