What is expansion joint cover?
What is expansion joint cover?
An Expansion Joint Cover, or EJC for short, provides a covered transition across the Expansion Joint opening, remaining unaffected by the relative movement of the two surfaces either side of the joint.
What is a floor expansion joint?
Expansion joint covers for floors. Joint coversare profiles that cover the gaps created in the screed to allow natural thermal expansions and structural movements to avoid cracks in the flooring.
What spec section are expansion joints?
Section 07 72 00, ROOF ACCESSORIES: Roof Expansion Joint Cover Assemblies. Section 09 06 00, SCHEDULE FOR FINISHES: Color of Elastomer Inserts, Filler Strips, Exterior Wall Seals and Metal Finishes.
Do concrete floors need expansion joints?
All concrete will shrink slightly as it dries and, when it’s set, will expand or contract depending on the ambient temperature. To prevent cracks from forming, concrete expansion joints should be incorporated to allow for movement, particularly in slabs with a surface area exceeding 6m2.
Where do I put expansion joints in concrete?
Expansion joints are put in place before the concrete is poured. Expansion joints are used to allow the slab to move and not put stress on whatever it abuts. These joint are placed where a slab meets a building, where a slab meets another slab, and where a pool deck meets the coping.
Do you need expansion joints in concrete slabs?
Expansion joints are virtually never needed with interior slabs, because the concrete doesn’t expand that much—it never gets that hot. Expansion joints in concrete pavement are also seldom needed, since the contraction joints open enough (from drying shrinkage) to account for temperature expansion.
What is the common use of an expansion joint?
Expansion joints are devices that are used to allow for the heat-induced expansion and reduction that takes place in various states of weather. They are often used in the construction of bridges and sidewalks.
What is an expansion joint cover?
expansion joint cover. A prefabricated cover which serves to protect an expansion joint, 1; designed to accommodate relative movement between the surfaces on the two sides of the joint.
What is joint cover?
The Joint Covers protect the butt joint where two siding planks meet and provide an expansion joint to help prevent siding buckling. 7/16 in. x 12 in. Joint covers are available in lengths and return lip widths to fit all major brands of hardboard and cement fiber siding, including most profiled 12 in. and 16 in.
What are building expansion joints?
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.