Vinyl

Vinyl grill covers are waterproof and are reliable for outdoor use especially during the rainy season. However, they are still divided into different types as per their durability. Heavy-duty vinyl covers with at least 12 gauge are quite durable and popular. Lighter vinyl covers are comparatively more affordable but may not be as durable as the heavy-duty ones.​

Polyester

This is the common type and the consumers’ favorite among all the other materials. Aside from its lightweight feature, they are suitable for different types of weather. They are the most durable of all as it comes with sturdy construction. It is often treated chemically to be resistant to water and sunlight.

Canvas

This material opted as an alternative of polyester covers. It is one of the best options for outdoor use due to its resistance to different types of weather. These are fireproof as well. Canvas is often used in making covers for boat sails, tents and shoes. What is also great about it is, despite its durable quality, the price is not inflated.

Protection from Weather

Keeping rain and snow off of your grill is the key to long term care, and it will also ensure that your grill doesn’t develop rust on any of its parts.  Especially if you live in an area where it snows, a grill cover comes in super handy.  You can simply just remove your grill cover and get to grilling when it’s time to cook instead of having to clean snow off your grill.

Protection from Natural Elements

If your setup is near trees or other plants, a cover will protect your grill from tree sap, pollen, dust, dirt, and water spots that may contaminate food.  There’s also the element of critters and pets – a grill cover will protect your grill from getting messed with, nested in, or defecated on by birds and animals.

Protection from Chemicals

If your grill is placed next to a lawn, a grill cover will also protect your grill from lawn chemicals, fertilizers, and other substances that might be corrosive to your grill.

The Right Material

You should avoid easy to tear materials or any lined or flannel-lined covers.  These materials generally won’t last a long time and will look ratty after a year or so of use.  The best grill cover materials are vinyl, polyester, oilcloth, and weather-proof nylon. 

Choice Between a Custom Grill Cover and a Generic One

With a custom cover, you might pay a little more but, your cover is guaranteed to fit your grill snugly. Custom grill covers are made of the right materials and are truly high quality, especially if you buy a grill from a reputable manufacturer. Generic grill covers on the other hand are designed by third parties and are meant to work for a wide variety of grill types.  Thus, choose as per your requirements