Hi Waylor, I’m still learning all this myself, but that sounds like major works that would require a special resolution >75% vote (based on lot entitlement) for the motion at a general meeting with owners. Are there any reports/ photos/ details of exactly what the problem is and what has caused it? Roof would be common property. Depending on the cause and what has actually occurred it might be claimable under insurance? If the roof slab is leaking it could be a leaking roof membrane which is common property and Owner’s Corporation responsibility to fix as part of maintenance. Roof tiling would be the same, unless damage occurred from a storm which might be claimable under insurance? Also you might be able to ask for more than 2 quotes? It might need urgently fixing though? I’d ask my strata manager for more information and time to digest it before the meeting. Also do the works constitute maintenance , eg. Repairing or replacing a membrane or repairing or replacing tiles with same tiles, or an improvement/ enhancement such as a fancy new roof? Both require a special resolution but the former is obligatory (duty to maintain common property) and may cost less.
Hopefully someone else on here can advise, as I’m not 100% certain.