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CalMark Cover FAQ and Reference Information

Please browse the following companion information related to RV covers.

Quick and easy tie down system

Our newest feature allows you to quickly and securely tie down your custom made CalMark Cover. Please contact us for additional details.

Fabric Stress Reinforcement (FSR)

Click here to see why this feature is so important on any cover you purchase. This is offered only by CalMark and is included in every cover we make.

Zipper Doors

Having easy access to your RV when it is covered is, without question, one of the best features to look for when purchasing an RV cover. In addition to the main entrance zipper door, think about a zipper door for your main storage compartment, providing easy access to that as well. At CalMark we put doors in all of our covers and any special requests are invited. We want you to be pleased with your cover.

How do I know I’m buyer from a reputable manufacturer?

When it comes to purchasing any product, try to deal directly with the manufacturer versus a retailer or distributor. Our reputation is on the line. Check out what customers are saying about us on the RV chat lines.

Always insist on receiving samples of any fabric before making a purchase.

ASK for a statement of the Warranty and Guarantee.

Full warranty versus pro-rated warranty

You can answer this one for yourself. Manufacturers who offer a Full Warranty, such as CalMark, versus a pro-rated warranty must feel very confident in their product. Both the manner in which the cover is manufactured, like double stitching all seams, fabric stress reinforcement (a unique feature only offered by CalMark) and using only premium fabrics, make this possible. If something goes wrong with the fabric or workmanship during the warranty period under a full warranty, it is either replaced or repaired at no cost to you the customer.

Fabric Samples

Purchasing a quality RV cover for long term outdoor storage is no small investment yet it is the best investment you can make for your RV! To make sure you are getting quality fabric for your cover needs, always insist on a sample of the fabric before you purchase the cover. Buyer Beware!

Click Here to Request a Fabric Sample Brochure

Non-woven fabrics versus woven fabrics

Woven Fabrics like Sunbrella® are considered exceptional when it comes to protective covers for RV’s. Woven fabrics are incredibly strong and can withstand harsh weather conditions

Why do I need an RV cover?

In most cases, today’s Recreational Vehicle (RV) is considered a 2nd home.

Unfortunately, that 2nd home must be stored for extended periods of time. exposed to Mother Nature’s wear and tear. Ultraviolet radiation from the sun, air pollutants, snow, dirt and dust all take their toll. The damage will be easy to see. Ugly black streaks, almost impossible to remove, will mar the painted surface. The beautiful exterior surface will fade quickly and you can expect some serious roof repairs after about the second year.

Covering your RV is a smart investment.

If it is just to keep it clean and ready to go for your next outing, a cover is the only way to go. More importantly, a good cover can prevent the damage mentioned above and many years down the road the RV can look as nice as the day you bought it.


NEVER use a plastic tarpaulin to cover your RV. REMEMBER heat rises. RVs have to breathe. Blue plastic tarps ARE NOT BREATHABLE and will cause severe damage to the inside of your RV. You would be much better off not covering it at all. RVs have walls and if the foul air or condensation has nowhere to go, it remains within the walls and eventually you will experience dry rot and black mildew.

Are RV covers difficult to put on my vehicle?

If you are able to walk on the top of your RV, we suggest the following method. Tie a rope around the rolled up cover while it is on the ground and throw the rope over the RV. Get up on top and pull the cover up and sit it on the rear of the RV. Unroll the cover toward the front and then unfold it as you work your way back to the ladder. Do not try to adjust the position until you are back on the ground. NEVER try to carry the cover on your shoulder as you climb the ladder.

If you cannot walk on top, give us a call. We will guide you through a couple of other easy methods of installation.

Request a Fabric Sample

See and touch the quality of the fabric used in every cover.

How to take the cover off

If you take the cover off as follows, it will be that much easier to install the next time.

What is the average weight of a cover?

Your CalMark Cover when made will weigh approximately 2 lbs per linear foot. So if you have a 30′ RV the weight of your cover will be approximately 60 pounds. Some covers in the industry use a non-woven lighter weighted fabric, While they may be lighter, easier to manage and less expensive they have the shortest life span.

Fabric features

A Quality RV Cover must have the following features for outdoor exposure:

Any RV cover fabric must be breathable, water resistant, non-abrasive, mildew and dry rot resistant and, most importantly, have a high UV resistance factor. At CalMark we only use 100% USA made acrylic woven fabric – Sunbrella® by Glen Raven Mills.