· What is an expansion joint?
· In building construction, an expansion joint is a mid-structure separation designed to relieve stress on building materials caused by building movement induced by:
- thermal expansion and contraction caused by temperature changes,
- sway caused by wind,
- seismic events, etc.
· Because the joint bisects the entire structure, it marks a gap through all building assemblies--walls, floors, roofs, decks, planters, plazas, etc. This gap must be filled to restore the waterproofing, fire proofing, sound proofing, air barrier, roof membrane, trafficable surface and other functions of the building elements it bisects.
· Expansion joint systems are used to bridge the gap and restore building assembly functions while accommodating expected movements.
· The term "movement joint" has been widely adopted in preference to "expansion joint" as it more appropriately encompasses the fact that building movement results in both compression and expansion of the material installed.
· For example, when a structure heats up, the building materials from which it is built expand. This causes the "expansion joint" to close down, thereby compressing the expansion joint system installed in the gap.
· Conversely, when the temperature drops, the materials cool causing the joint gap to open. This requires the expansion joint material to expand to follow the joint movement.
Specifications
Product |
Aluminum Expansion Joint Covers |
Material: |
Aluminum Alloy(ASTM6063-T5) |
Joint width: |
50-350mm |
Movement capacity: |
+/-50% |
Mounted: |
floor to floor |
Optional parts: |
fire barrier |
Applications |
Airports, Hospitals, Shopping Malls, Offices; Schools |
Marks: |
N/M, usually no marks |
Business type: |
manufacturer |
Payment terms: |
T/T, L/C, Western Union |
Advantages: | 1. All products are made free of defects, and conform to technical data listed. We will replace any material proven defective before delivery.
2. MEISHUO aluminum profile can be used for 20-30 years.
3. MEISHUO vapor barrier can be used for 5-10 years. |
Expansion Joints Installation:
Along the long direct of the building preset gaps at every certain distance. Disconnect the building from the the roof, walls, floors and other above ground members, building foundation don't need to connect, because it is buried, it is affected by temperature changes
Features of Expansion Joint Covers:
1. Glide Plate and Centering Bar Systems.
2. recessed frame designed for drywall installations or system can be surface mounted as well.
3. Snap-fit cover design for easy on-site assembly, no exposed fasteners makes the system ideal for public/high abuse conditions.
4. Mill finish standard.
About Us:
Nanjing MEISHUO Building Materials Co., Ltd was founded in 2000 in China and has more
than 13 years project experience in designing, manufacturing and installation of building
expansion joint systems (floor, wall and ceiling, roof), stair nosing, movement Joint, aluminum entrance mat, aluminum skirting board, tile trim, etc.
Any questions, pls feel free to contact us!!!