Do you have roof access? It's not going to be terribly windy in Boston... There are places that sell/rent temporary roof coverings, mainly for protecting from

Do you have roof access? It's not going to be terribly windy in Boston... There are places that sell/rent temporary roof coverings, mainly for protecting from storm damage until it can get fixed. But anyway, white/reflective coverings are available, and can be held down with a few bricks for a week.