Cut a piece of canvas. For thin canvas coverings on furniture, cut a piece of canvas, a little larger than the torn area, and with the end of a spoon, insert the canvas underneath the tear and lay it even to cover the entire area.
Secure the canvas. Secure the canvas onto the piece of canvas underneath with a pin so that the piece of canvas will remain directly under the ripped or torn area.
Apply latex adhesive. Carefully apply the adhesive onto the canvas piece without overflowing onto surrounding surface area. Make sure to apply the glue over the entire area that is torn above.
Close the flap. Close the ripped flap onto the glue. Secure the canvas with a couple of pins until completely dried.
Sew the tear. For thicker canvas material such as patio umbrellas, use heavy duty thread to sew the tear or rip. Be sure to get a similar colored thread before sewing to blend in. For large rips, use a sewing machine and a heavy duty needle.