Improper installation of EPDM seals can lead to several issues that compromise the effectiveness and longevity of the expansion joints. Here are some common signs to watch out for:
1. Leaks and Water Ingress
- Signs: Presence of water leaks around the expansion joints, especially after rain or cleaning.
- Cause: Poor sealing of seams or inadequate adhesive application1.
2. Bubbling or Blistering
- Signs: Visible bubbles or blisters on the surface of the EPDM seal.
- Cause: Trapped air or moisture during installation, or improper bonding of the seal to the substrate2.
3. Shrinkage and Pulling Away
- Signs: The EPDM seal appears to shrink or pull away from the edges of the expansion joint.
- Cause: Insufficient relaxation time for the EPDM material before installation or exposure to extreme temperatures1.
4. Cracks and Tears
- Signs: Cracks or tears in the EPDM seal, especially around seams and corners.
- Cause: Incorrect cutting, excessive stretching during installation, or use of inappropriate tools3.
5. Poor Adhesion
- Signs: The EPDM seal does not adhere properly to the substrate, leading to gaps or loose sections.
- Cause: Inadequate surface preparation, use of incompatible adhesive, or insufficient curing time2.
6. Debris and Contaminants
- Signs: Presence of debris, dust, or other contaminants on the EPDM seal or within the expansion joint.
- Cause: Failure to clean the surface properly before installation1.
7. Improperly Sealed Seams
- Signs: Seams that are not properly overlapped, primed, or sealed, leading to visible gaps or weak points.
- Cause: Poor seam preparation and sealing techniques2.
8. Damaged Flashings and Accessories
- Signs: Flashings and accessories around the EPDM seal are damaged or not securely fastened.
- Cause: Incorrect installation or use of incompatible materials3.
Regular inspections and maintenance can help identify these issues early and prevent further damage. For high-quality EPDM expansion joints and expert installation guidance, visit www.dseal.in.
