There are some problems you might see if you leave your swamp cooler on your roof...
Leaks may occur and cause water damage inside your home. During the winter months, there is a cold hole in your ceiling. Even though you can use a cooler pad to block the cold air from coming in, the pads don't completely seal and the cold air WILL come in. During summer months the heat from your roof may come in through the unused swamp cooler. Old swamp coolers are heavy and unsightly. There is no use in keeping them perched up on your rooftop. They can be removed. We do it all the time!
Here is the process: We remove the old swamp cooler and fill in the hole with precision-cut plywood. We then install an ice and water shield as underlayment. And then finally, we match your existing shingles and install them to look as if there were never a hole there in the first place! And there you have it...see ya later swamp cooler!