Standard Repair Covenants in Industrial Lease Agreements
Standard repair covenants transfer ongoing building maintenance to tenants while legal limits cap end-of-lease dilapidation liabilities at actual market value loss.
Elastomeric Sealant
Meaning
Flexible joint compounds fill gaps between construction materials to prevent water and air infiltration while accommodating structural movement. An industrial-grade elastomeric sealant possesses the ability to stretch and compress repeatedly without losing its adhesive bond to the substrate. This product maintains its rubbery texture across a wide temperature spectrum.
It is used on expansion joints where rigid fillers would crack or fail.
Application Procedure
Proper surface preparation determines the longevity and adhesion of the joint filler. Workers must clean the concrete or steel joint of dust, grease, and old debris before applying the elastomeric sealant. A backing rod is inserted into deep gaps to control depth and prevent three-sided adhesion.
This step ensures the joint can move freely without tearing the compound.
Material Selection
Polyurethane and silicone formulations offer different performance profiles depending on the exposure environment. A silicone elastomeric sealant provides high resistance to ultraviolet radiation and extreme heat, making it suitable for exterior glass facades. Polyurethane options resist abrasion and chemical exposure better, which suits pedestrian walkways or industrial floors.
Each compound requires a specific curing period to achieve its full elasticity, meaning that early exposure to loads will ruin the installation.
Degradation Risk
Chemical exposure and excessive movement can compromise the joint barrier. Cohesive failure occurs when the elastomeric sealant tears within itself because of joint expansion. Adhesive failure arises when the product pulls away from the wall.