All buildings big or small have to deal with a differential thermic setting between winter and summer. The thermal shrink of concrete is 1/100 mm/m/°C (The hygrometric expansion of bricks εr < 0,1mm/m); this means that the shrinkage cracks can be repaired or evaluated definitively after a (strong) winter. A building of 20m will undergo a theoretic, thermal setting of 20 x 0,01 x 50 = 10mm. A part of the shrink will be absorbed by the construction materials themselves, a part will translate into the “working” of hairline cracks. With a bigger building the dilatation joints will “cut” through the building to absorb extreme pulling forces because of thermal shrink. The joint of a building extension will translate differently than a solid building. The final evaluation of the (hairline) cracks can be correctly assessed after a strong winter. Also the recently fixed leaks in big concrete constructions can be pulled open again during or after a strong winter. You can best keep this in mind so you don’t have to pay twice.[/vc_column_text][stm_post_bottom][stm_post_about_author][stm_post_comments][/vc_column][vc_column width="1/4" offset="vc_hidden-sm vc_hidden-xs"][stm_sidebar sidebar="527"][/vc_column][/vc_row][vc_row full_width="stretch_row" el_class="third_bg_color" css=".vc_custom_1451889219674{margin-bottom: -60px !important;}"][vc_column][vc_cta h2="Questions about this subject?" h2_font_container="font_size:20px|color:%23000000|line_height:24px" h2_use_theme_fonts="yes" shape="square" style="flat" add_button="right" btn_title="contact us" btn_style="flat" btn_color="theme_style_2" btn_align="right" btn_i_align="right" btn_i_icon_fontawesome="fa fa-chevron-right" use_custom_fonts_h2="true" btn_button_block="true" btn_add_icon="true" el_class="third_bg_color" css=".vc_custom_1517479287226{margin-bottom: 0px !important;}" btn_link="url:https%3A%2F%2Fwww.humida.nl%2Fcontact-us%2F%3Flang%3Den|"][/vc_cta][/vc_column][/vc_row]