When cleaning your motorhome, it is important to remember to take time to clean the awnings. If the awnings are not properly maintained, mildew can build up and damage the fabric. Since motorhome awnings can be expensive to replace, you should take the time to clean them instead. If the awnings can be removed from the frame, you should do so prior to cleaning. Otherwise, you may need a ladder to access the awning.
Put on a pair of gloves. You may want to wear old clothing as well since you can get dirty while cleaning motorhome awnings.
Mix together a small amount of mild soap into a bucket of hot water. Avoid using any harsh cleaning chemicals for the awnings of the motorhome.
Dip a soft-bristled brush into the solution. Scrub the entire surface area of the awnings with the soap and water mixture. Remember to avoid applying too much pressure--this can cause the frame of the awnings to break.
Use a stiffer brush for tough stains that do not go away with the softer brush. Some stains, like bird droppings, require a stiffer scrub brush dipped into the hot water and soap mixture.
Rinse off the soap using a garden hose. Once the awnings have dried, examine them for any hard-to-remove stains, like tree sap.
Get rid of any tree sap stains with a small amount of acetone. Blot the stain with a rag. Only use the acetone on a small area of the awnings in order to avoid any damage to the material.