The weak­en­ing of build­ing mate­ri­als, changes in phys­i­cal prop­er­ties and the appear­ance of defor­ma­tions lead to a dete­ri­o­ra­tion in the over­all per­for­mance of the build­ing. In order to avoid such defor­ma­tions, such a reli­able and durable tech­nol­o­gy as defor­ma­tion (elas­tic) seams is used. Thanks to them, a con­stant resis­tance of the struc­ture to var­i­ous phys­i­cal influ­ences is ensured. Using such a seam, it is pos­si­ble to exclude the destruc­tion of struc­tures.

Tech­ni­cal oper­at­ing con­di­tions

An expan­sion joint is a place in the wall of a house spe­cial­ly pro­vid­ed for this pur­pose, which ensures the move­ment of the build­ing rel­a­tive to the foun­da­tion. As a rule, the expan­sion joint has the form of a closed cav­i­ty, which is locat­ed along the wall of the struc­ture.

Its dimen­sions can be var­ied, how­ev­er, the min­i­mum width is 15 mm. Such a seam pro­vides com­pen­sa­tion for soil shrink­age or tem­per­a­ture changes. Depend­ing on the loca­tion, expan­sion joints are of the fol­low­ing types:

  • super­fi­cial;

  • inter­floor;

  • fun­da­men­tal.

for inte­ri­or and exte­ri­or walls. Such seams per­form dif­fer­ent func­tions, for exam­ple, they affect the redis­tri­b­u­tion of loads on the walls of the build­ing, pre­vent them from shift­ing, and also pro­vide sound and ther­mal insu­la­tion.

Expan­sion joints, which are arranged using water­proof­ing mate­ri­als, pro­tect build­ing mate­ri­als from destruc­tion, and the foun­da­tion from mois­ture. Cur­rent­ly, the vari­ety of expan­sion joints is impres­sive and every­one can choose an indi­vid­ual option for their project. The cor­rect instal­la­tion of the struc­ture deserves spe­cial atten­tion, since the seam must con­stant­ly work. All addi­tion­al ques­tions can be dis­cussed with rep­re­sen­ta­tives of the online store, who will help you make the right choice.

Expansion joint

Types of expan­sion joints

Based on the char­ac­ter­is­tics of the expan­sion joint, we can say that it can be: exter­nal, inter­nal and through. Accord­ing to the method of the device, they dis­tin­guish:

  • key­way;

  • anchor;

  • frame.

A keyed expan­sion joint is arranged dur­ing the lay­ing of the foun­da­tion. Anchor seam allows you to com­pen­sate for soil move­ments under the influ­ence of tem­per­a­ture con­di­tions. Frame seams are made dur­ing the con­struc­tion of build­ings to com­pen­sate for wall defor­ma­tions dur­ing shrink­age. With a through device of an expan­sion joint, the joints between all the walls of the struc­ture are locat­ed along its entire height.

Source: TopClimat.com