The problem you describe is one that owners have been facing for years. Often it is the tenants who are the cause of the improper installation, but recently we’ve noticed the problems are more often caused by the actual dish or cable provider, by one of their subcontractors or employees. The transgressions are many; certainly, the installation by attaching the dish to your building facia or structure and the stringing of cable on your roof is neither permitted by the rental agreement, nor by law. More importantly, the entry upon your roof without your permission is an illegal trespass. The damage caused to your roof by directly attaching the dish to facia, or by the scattered nails and other debris working their way into the roofing material causing the roof membrane to leak, are certainly unacceptable and are actionable. Don’t be surprised when your roofing contractor seeks to void his warranty due to your failure to prevent persons from abusing the roof, the lack of maintenance by allowing nails, screws, and debris to remain on the roof, and the intentional penetrations of the roof membrane by the installers. Enforcing the terms of the agreement against the tenant is, of course, the obvious choice, but not necessarily the best. The fix has become a bit more complicated given the current climate of increasing vacancy and declining rents. In strong rental markets, a notice of default could be served on the tenant requiring the tenant to correct the problem, and if he failed to do so, evict him. Once evicted, the replacement tenant then moves in, calls the dish or cable guys, and the exact same problem happens again, deja vu. Problem solved? No. In the current rental market, owners want to solve the problem, keep it from re-occurring, and yet maintain the tenancy if at all possible. The best solution in today’s market, assuming the installation was not done by the resident, is to put the resident on notice of the breach, and with the tenant’s co-operation, demand that the dish or cable installer correct the problem and repair any damage done to the roof. A written demand should be served upon the dish or cable provider, as well as the installer, that you intend to pursue them civilly and will seek damages for their trespass on to your property, the roof, for recovery of the damages you have suffered and will suffer due to the damage to the roof and facia, and for further damages due to their ‘unfair business practices’ of engaging in illegal activity, trespassing, and causing damage to property. Provide them a reasonable amount of time, 10-days, to contact you to make arrangements to remove the offending equipment and to repair any damage done to your roof. Upon receipt of your letter, or your attorney’s letter, the provider will certainly prefer to correct the situation and will certainly not repeat the transgression on your property./