Hi, our house built 8 years ago has dry ridge roof system and the metal foil tape/aluminium flashing has lifted up. The tiles are still in place. Asked the builder and they said it’s out of warranty, asked NhBc and they said if it’s not leaking they don’t want to know. Not sure if it is a problem or not - it’s not leaking. Asked a couple of roofers and they said we need scaffolding to get up and sort it! Worried it’s going to cost a fortune for a minor problem? Any advice welcome.