Expansion Joint Filling
Reliable Expansion Joint Filling and Waterproofing Services
Expansion Joints are Supposed to Move & Your Waterproofing Should Move with it
All buildings expand under the summer heat while shrinking in the chilling winter. For this movement, the structure includes expansion joints designed to make it possible without issue. Without these joints, the structure will collapse under thermal expansion.
Now, the movement is the exactsue with these joints. When the joint opens, a hard sealant breaks. A weak seal, when it shuts, tears.
In most buildings in Pakistan, joints are filled with materials not designed for long-term movement during construction, and when these fail, water has a direct
route into the building. Failure of expansion joints is one of the most underrated causes for leakage in the roof, terrace, and internal wall seepage in commercial and industrial buildings.
At One Roof Waterproofing, we offer reliable expansion joint filling and waterproofing solutions to prevent leakage and structural damage. Our team ensures long-lasting protection designed to handle building movement effectively.
Book It Now
Where Expansion Joints Fail Most Often: Fix the Problem From Base
- Roof and Terrace Joints: Standing water after rain sits directly on the joint. When the seal fails, water gets into the slab.
- Factory and Warehouse Floor Joints: Open joints are exposed to traffic and load over time. Water and chemicals penetrate the substrate.
- External Wall Joints: Rainwater driven in horizontally, especially on high-rise and commercial buildings.
- Joints of Basement and Underground Structure: Failed joints are penetrated by groundwater under constant hydrostatic pressure.
- Parking Decks and Podium Slabs: Vehicle loading and exposure to fuel accelerate the deterioration of joint sealants.
- Roof Parapets and Upstands: Where the flat roof meets a vertical surface, joint movement is greatest, and the risk of seepage is highest.
Signs Your Expansion Joints Need Attention: Keep An Eye On Problems
- Water stains on ceilings or walls directly under a roof or terrace seam.
- Existing joint sealant is showing signs of cracking, hardening, or shrinkage.
- Joint sealant that has separated from one side or both sides of the joint.
- Damp patches on internal walls at intervals corresponding to the joint spacing.
- Water that pools on terraces or roofs either drains very slowly or not at all.
- Rust stains at locations of joints in concrete, indicating moisture reaching the steel reinforcement.
Our Expansion Joint Filling Process: Making Every Step Count
Step 1: Check the joint’s width, depth, and how it moves. This helps in choosing the right materials.
Step 2: We ensure the removal of the old sealant is complete down to the bare surface. You can’t get a good bond if there’s still old material there.
Step 3: Using a backer rod helps manage how deep the sealant goes and stops it from sticking on three sides.
Step 4: Prime Both Sides. Many contractors overlook this step, and it’s a big reason many joints don’t last more than a year.
Step 5: Apply sealant
- Polyurethane is great for roof, terrace, and outside wall joints.
- Polysulfide works well in areas that deal with water retention and chemical exposure.
- Silicone is ideal for glazed facades and joints that get a lot of UV exposure.
- As for epoxy mortar, it’s best suited for dormant joints in industrial flooring.
Step 6: We make sure everything’s fully healed before we reopen. We’ll check each joint to ensure the profile and adhesion are good before handing it over.
Why Choose One Roof for Expansion Joint Filling?
- Material matched to movement
- Full preparation included
- All joint types handled
- Integrated with waterproofing
- Experienced across building types
Reach Out For Joint Expansion Now
If you notice any cracks in the joint sealant or keep seeing leaks in your ceiling or walls, those expansion joints might be the culprit. Give One Roof Waterproofing a call for a free inspection and a precise quote.
Talk to An Expert Now
Reliable Expansion Joint Filling and Waterproofing Services
Expansion Joints are Supposed to Move & Your Waterproofing Should Move with it
All buildings expand under the summer heat while shrinking in the chilling winter. For this movement, the structure includes expansion joints designed to make it possible without issue. Without these joints, the structure will collapse under thermal expansion.
Now, the movement is the exactsue with these joints. When the joint opens, a hard sealant breaks. A weak seal, when it shuts, tears.
In most buildings in Pakistan, joints are filled with materials not designed for long-term movement during construction, and when these fail, water has a direct route into the building. Failure of expansion joints is one of the most underrated causes for leakage in the roof, terrace, and internal wall seepage in commercial and industrial buildings.
At One Roof Waterproofing, we offer reliable expansion joint filling and waterproofing solutions to prevent leakage and structural damage. Our team ensures long-lasting protection designed to handle building movement effectively.
Book It Now
Where Expansion Joints Fail Most Often: Fix the Problem From Base
- Roof and Terrace Joints: Standing water after rain sits directly on the joint. When the seal fails, water gets into the slab.
- Factory and Warehouse Floor Joints: Open joints are exposed to traffic and load over time. Water and chemicals penetrate the substrate.
- External Wall Joints: Rainwater driven in horizontally, especially on high-rise and commercial buildings.
- Joints of Basement and Underground Structure: Failed joints are penetrated by groundwater under constant hydrostatic pressure.
- Parking Decks and Podium Slabs: Vehicle loading and exposure to fuel accelerate the deterioration of joint sealants.
- Roof Parapets and Upstands: Where the flat roof meets a vertical surface, joint movement is greatest, and the risk of seepage is highest.
Signs Your Expansion Joints Need Attention: Keep An Eye On Problems
- Water stains on ceilings or walls directly under a roof or terrace seam.
- Existing joint sealant is showing signs of cracking, hardening, or shrinkage.
- Joint sealant that has separated from one side or both sides of the joint.
- Damp patches on internal walls at intervals corresponding to the joint spacing.
- Water that pools on terraces or roofs either drains very slowly or not at all.
- Rust stains at locations of joints in concrete, indicating moisture reaching the steel reinforcement.
Our Expansion Joint Filling Process: Making Every Step Count
Step 1: Check the joint’s width, depth, and how it moves. This helps in choosing the right materials.
Step 2: We ensure the removal of the old sealant is complete down to the bare surface. You can’t get a good bond if there’s still old material there.
Step 3: Using a backer rod helps manage how deep the sealant goes and stops it from sticking on three sides.
Step 4: Prime Both Sides. Many contractors overlook this step, and it’s a big reason many joints don’t last more than a year.
Step 5: Apply sealant
- Polyurethane is great for roof, terrace, and outside wall joints.
- Polysulfide works well in areas that deal with water retention and chemical exposure.
- Silicone is ideal for glazed facades and joints that get a lot of UV exposure.
- As for epoxy mortar, it’s best suited for dormant joints in industrial flooring.
Step 6: We make sure everything’s fully healed before we reopen. We’ll check each joint to ensure the profile and adhesion are good before handing it over.
Why Choose One Roof for Expansion Joint Filling?
- Material matched to movement
- Full preparation included
- All joint types handled
- Integrated with waterproofing
- Experienced across building types
Reach Out For Joint Expansion Now
If you notice any cracks in the joint sealant or keep seeing leaks in your ceiling or walls, those expansion joints might be the culprit. Give One Roof Waterproofing a call for a free inspection and a precise quote.
Talk to An Expert Now