Addi­ti­o­nal infor­mati­on on ener­gy savings and ther­mal pro­tecti­on – buil­ding insu­lati­on requirements

In terms of industrial buil­dings, ther­mal com­fort in the wor­k­pla­ce, often in com­bi­nati­on with pro­per tech­no­lo­gi­cal con­di­ti­ons, faci­li­ta­tes the manu­factu­ring process.

Ther­mal and tech­ni­cal requi­re­ments for manu­factu­ring faci­li­ties are spe­ci­fied in the Buil­ding Act and its imple­men­ting regulations.

A num­ber of ther­mal com­fort requi­re­ments in the wor­k­pla­ce are gover­ned by the Labor Code and its imple­men­ting regu­lati­ons. A spe­cial set of rules applies to ref­ri­ge­ra­ted and fro­zen-food ware­hou­ses. Requi­re­ments for dif­fe­rent types of ref­ri­ge­rati­on and fre­e­zer faci­li­ties are regu­la­ted by the ČSN 148102 Stan­dard on Ref­ri­ge­rati­on and Fre­e­zer Sto­rage Ther­mal Insulation.

Exter­nal clad­ding insu­lati­on must com­ply with ener­gy-saving and ther­mal pro­tecti­on requi­re­ments to achie­ve the requi­red microc­li­ma­te and to mini­mi­ze hea­ting and/or air-con­di­ti­o­ning costs.

The basic ther­mal insu­lati­on valu­es for exter­nal clad­ding defi­ned by buil­ding regu­lati­ons are as follows:

  • The lowest inter­nal sur­fa­ce tem­pe­ra­tu­re of a structure.
  • The heat per­me­a­bi­li­ty coef­fi­ci­ent (for­mer­ly a ther­mal resistan­ce value)
  • The annu­al con­densati­on value and the volu­me of con­den­sed vapor within a structure.
  • Spe­ci­fic heat con­sumpti­on (for­mer­ly the total ther­mal cha­rac­te­ris­tic of a building).

Secti­on 47 of the Buil­ding Act defi­nes the mate­ri­als to be used for con­structi­on purposes:

  1. Mate­ri­als and structu­ral com­po­nents designed and uti­li­zed for con­structi­on pur­po­ses shall be designed in a man­ner that ensu­res com­pli­an­ce with requi­re­ments for mecha­ni­cal resistan­ce and sta­bi­li­ty, fire safe­ty, hygi­e­ne, heal­th and envi­ron­men­tal pro­tecti­on, ope­rati­o­nal safe­ty (in con­si­de­rati­on of disa­bled per­sons and per­sons with redu­ced mobi­li­ty), noi­se pollu­ti­on pre­ven­ti­on, ener­gy saving and ther­mal pro­tecti­on of pro­per­ly con­struc­ted and main­ta­i­ned buil­dings for the durati­on of the­ir pro­jec­ted ser­vi­ce life.
  2. The mate­rial pro­per­ties with a major effect on the final con­structi­on qua­li­ty shall be veri­fied in accor­dan­ce with rele­vant regu­lati­ons and in refe­ren­ce to the requi­re­ments sti­pu­la­ted in article 1 above.

Buil­ding ener­gy requi­re­ments were for­mer­ly regu­la­ted by the ČSN 73 0540-2 Stan­dard. Buil­ding ener­gy requi­re­ment issu­es are current­ly add­res­sed by Act No. 4062000 Coll., on Ener­gy Manage­ment, name­ly Regu­lati­on No. 2192001 Coll., spe­ci­fy­ing details of effi­ci­ent ener­gy uti­li­zati­on for the hea­ting of buildings”.

This regu­lati­on defi­nes the requi­red spe­ci­fic heat con­sumpti­on valu­es to be achie­ved and the docu­men­tati­on demon­stra­ting the ener­gy per­for­man­ce of a buil­ding, known as ener­gy cer­ti­fi­ca­tes. The­re are two types of ener­gy certificates:

  • ener­gy cer­ti­fi­ca­te data - resi­den­tial buildings
  • ener­gy cer­ti­fi­ca­te data - ter­ti­a­ry, industrial and agricul­tu­ral buildings