Repairs
Membrane Repair:
Applicability: Repair of cuts and punctures in the RubberCover EPDM membrane, contamination of the membrane with hazardous products.
Instructions:
- Mark the damaged area with a white crayon as soon as identified during the installation
- Cuts and punctures in the RubberCover EPDM Membrane should be repaired with Flashing Tape. The repair must extend a minimum of 50mm beyond the perimeters of the damaged area in all directions. Pinholes in the membrane may be repaired with a piece of corner flashing
- Round all corners of the repair piece
- When repairing a membrane that has been in service for some time, although it is necessary to prepare the surface to be spliced thoroughly prior to starting the splicing operation. First, scrub the surface with a brush and warm soapy water, rinse with clean water and dry the surface with clean cotton rags. Finally scrub the area with primer. Additionally cleaning may be required on heavily contaminated areas.
- Membranes which have been in contact with hazardous chemical discharges such as fresh bitumen, petroleum products, greases, oils, animal fats, coal tar based or plastic roof cements need to be inspected for damage. Remove immediately all excess of the contamination materials and replace the damaged area with a new piece of membrane.
Repairing a cover tape join:
- Use scissors to cut the wrinkles away
- Pull apart the loose edges of cover tape. Re-apply primer and mate the two areas
- Use a small silicone rubber roller to roll the edges flat
- Clean the part of the membrane where the repair piece is to be placed, making sure to clean an area larger than that of the repair piece. if the membrane is very dirty, clean it first with a brush and soapy water.
- Apply primer to the affected area and repair with a patch and of Flashing tape.