Roof Vent Ice

The cap isn't just for debris, it is to keep animals out as well. This is especially true in the cold winter months during which animals want to find warm spaces, such as one might find by crawling through your vent stack.

If you have access to remove the cap in the winter you have access to knock the ice off. Do that and use the winter months to locate a different cap that won't cause the same problems but will keep the animals outside.

I have the same problem with the vent cap for the bathroom fan vent. Ice forming and dripping into the bathroom. Heavy snow here. Is there a better vent/cap. Ours is brown plastic and flat.

to protect your vent from ice or any falling objects , easily you can make bend by using 2 nos. of elbow 90 degree. to reverse the vent cap direction from up to down .

gas heaters have vent pipes too???