If you are trying to sell your property, the condition of your roof will affect the valuation of your home. If you have damaged or missing tiles on your roof, this could negatively affect the value and will give any potential home buyers cause for concern as they will see this as a major cost for them in the future. Re-roofing with tiles will definitely increase the value of your home as the property will be more secure from things such as leaks, and it will be more aesthetically pleasing for potential buyers.