external frameThe roofing contractor may also guarantee their work for a certain amount of time, or let you pay to extend it.(Image: https://images.unsplash.com/photo-1510445740272-d3b16ec28439?ixid=M3wxMjA3fDB8MXxzZWFyY2h8Mnx8cm9vZiUyMHJlcGxhY2VtZW50fGVufDB8fHx8MTczNDI0NzU0Nnww\u0026ixlib=rb-4.0.3) When you think of what makes up a roof, shingles spring to mind, but building a roof requires an array of additional materials.(Image: https://images.unsplash.com/photo-1521690318401-5cc3a0886b04?ixid=M3wxMjA3fDB8MXxzZWFyY2h8MTZ8fHJvb2YlMjByZXBsYWNlbWVudHxlbnwwfHx8fDE3MzQyNDc1NDZ8MA\u0026ixlib=rb-4.0.3) These include components like the underlayment, an ice and water shield, ridge vents, plywood, and flashing. All of these features should be included in the project quote and warranty. In addition to labor and materials, there will be other costs to consider when budgeting for a roof repair or replacement. These include permit fees, roof inspection, a premium for expedited services in the case of an emergency, and additional damage you may have in gutters or metal flashing.