If you are employing an engineering company for the replacement, these are the individuals whose brains should be picked. Ask why they favor one type of roof over another, etc. Also, what you discuss initially with the engineer will probably drive to a great extent the selection of the roof. If someone is looking for a green roof, then the engineer will recommend the green roof or will tell you why he/she does not favor it for your specific structure. If you say, you do not have much money to spend on your roof, your deck may be overlooked to a great extent and he/she may try to get a second layer if possible at a lesser cost.

Again, engineers will do the recommendation based on the prelliminary study and based on your initial conversation to ensure that the work that they will finally sign off pleases the customer and the budget. No sense in designing a rolls royce if you can only pay for a chevy.

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