Building seal EPDM seal retractable sealing strip

Construction joints, also known as expansion joints, means to prevent the building components temperature due to climate change (heat up, shrink), so that the structure cracks or destruction of a house constructed along the longitudinal direction of the appropriate parts of the vertically disposed seam. Expansion joints is the basis of the above building components such as walls, floors, roofs (except wooden roof) is equally divided into two separate parts, so that the building can do along the longitudinal direction of the horizontal scaling. Joints [] refers to the expansion joint gap to adapt to expansion and contraction deformation material impact on the structure and set up the structure. Also known as temperature seam joints, it is one of the common term construction projects. Its main role is to prevent the houses due to climate change and cracks. Its approach is: slot reserved a certain distance, the buildings are all turned off from the roof, walls, floors and above ground every member along the longitudinal direction of the building, building foundations because buried in the ground by the temperature change is small, do not disconnected. Expansion joint width is generally 2 cm to 3 cm seam fill insulation, expansion joints pitch two clearly defined architectural structure specification. Bridge expansion joints: In order to meet the requirements of the bridge deformation, usually between two end of the beam, or set the position articulated joints on the bridge between the end of the beam and abutment. Requires expansion joints in parallel, perpendicular to the axis of the bridge in both directions, can freely scalable, secure and reliable vehicle should be smooth too, no sudden jump and noise; to be able to prevent the infiltration of rainwater and mud blocked garbage; installation, inspection, maintenance , to be simple and easy to eliminate dirt. Set expansion joints, railings and the bridge deck to be disconnected. Boarding bridge expansion joints: from the terminal to the airplane aisle boarding bridge expansion joints between the junction.