Oh definitely bulbs must be enlclosed. Last thing you want is a little snakie getting fried on the bulb
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They do have some very fine wire mesh available at the hardware store. What are the details on this snake? Might be able to help if I had more details on the snake and setup.
I don't have any huge enclsoures, so I'm only going on others words... but from what I gather, radiant heat panels seem to be the way to go. But they are pretty costly... but long lasting, cant burn your snake, and economical to operate, and dont affect humidity. You can also use pig blankets and Kane heat mats are suitable for use inside the enclosure as well. Other options include heat lamps and ceramic heaters.
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