Our Services
Joint Treatment
Expansion, construction and floor joints sealed with high-movement Sikaflex® and Sikadur-Combiflex® systems.
Overview
How we approach it
Joint treatment seals the deliberate gaps — expansion, construction and floor joints — that let a structure move without cracking. A failed joint is the most common way water enters an otherwise sound building, which makes sealing them correctly disproportionately valuable.
Joints exist because structures move — and in KSA's temperature swings they move a lot. A failed joint seal is the most common entry point for water into otherwise sound structures, and the most common cause of edge breakdown in industrial floors.
We seal facade, roof and structural expansion joints with Sikaflex® polyurethane sealants selected for the actual movement class, over correct backer rod and primed faces — geometry matters as much as chemistry in sealant life. For wide, wet or high-movement joints (tanks, basements, bridges) we install the Sikadur-Combiflex® SG band system, which tolerates movement no gun-applied sealant can. Floor joints in trafficked areas get semi-rigid Sikaflex® PRO or epoxy joint nosings that protect the arris from forklift impact.
Old failed sealant is cut out completely, never bridged over — a new seal is only as good as its adhesion faces.
Typical scope
- Joint surveyMovement class, width and failure mode of existing seals assessed.
- Removal & preparationOld sealant cut out, faces cleaned, backer rod and primer set.
- SealingSikaflex® / Sikadur-Combiflex® system installed per movement design.
- Tooling & warrantyProfessional finish, cure protection and warranty handover.
Related services: Roof Waterproofing · Industrial Flooring
Common questions
Frequently asked questions
Why do expansion joint sealants keep failing?
Three usual reasons: wrong sealant class for the joint's actual movement, wrong geometry (too shallow or too deep against the backer rod), or sealing over old failed material and unprimed faces. Saudi thermal cycling is brutal on joints — correct movement class and geometry matter more here than anywhere.
What is the best way to seal wide or wet expansion joints?
Gun-applied sealants have movement limits. For wide, wet or high-movement joints — tanks, basements, bridges — we install the Sikadur-Combiflex band system: a flexible membrane strip bonded with epoxy across the joint, tolerating movement no sealant can. It's the standard solution where sealants have already failed repeatedly.
How often should expansion joints be resealed?
A correctly specified and installed Sikaflex joint typically lasts 10+ years; cheap installations fail in 2–3. Inspect joints annually — early signs are adhesion gaps at the edges and surface cracking. Resealing at first signs costs a fraction of repairing the water damage a failed joint lets in.