{"id":8966,"date":"2024-01-24T08:22:25","date_gmt":"2024-01-24T07:22:25","guid":{"rendered":"https:\/\/commercecon.pl\/baza-wiedzy\/rozbudowa-hali-jak-ja-sprawnie-przeprowadzic\/"},"modified":"2026-11-02T15:45:30","modified_gmt":"2026-11-02T14:45:30","slug":"hall-extensions-how-do-they-go-smoothly","status":"publish","type":"knowledge","link":"https:\/\/commercecon.pl\/en\/baza-wiedzy\/hall-extensions-how-do-they-go-smoothly\/","title":{"rendered":"Hall extensions \u2013 how do they go smoothly?"},"content":{"rendered":"\n<div class=\"wp-block-group is-style-container\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-cover is-light\" style=\"min-height:411px;aspect-ratio:unset;\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\"><\/span><img decoding=\"async\" width=\"1920\" height=\"1279\" class=\"wp-block-cover__image-background wp-image-8581\" alt=\"\" src=\"https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0006D.jpg\" data-object-fit=\"cover\" srcset=\"https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0006D.jpg 1920w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0006D-300x200.jpg 300w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0006D-1024x682.jpg 1024w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0006D-768x512.jpg 768w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0006D-1536x1023.jpg 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-large-font-size wp-block-paragraph\"><\/p>\n<\/div><\/div>\n\n\n\n<style>\n    @media (max-width:1023px) {\n        .spacer-block_0b59fbf6a944c092ba18d746abf0285d {\n            height: 10px;\n        }\n    }\n    @media (min-width:1024px) {\n        .spacer-block_0b59fbf6a944c092ba18d746abf0285d {\n            height: 50px;\n        }\n    }\n<\/style>\n<div class=\"spacer spacer-block_0b59fbf6a944c092ba18d746abf0285d\"><\/div>\n\n\n\n<div class=\"wp-block-group is-style-container-small\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Steel hall extensions \u2013 what should be borne in mind?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/commercecon.pl\/en\/industrial-facilities\/steel-halls\/\">Steel halls<\/a>\u00a0are very often used as production and storage facilities. This is due to their ease of design, erection time and efficiency of material use for this type of building. On expanding their projects, investors often decide to purchase new machinery and equipment or extend production lines to increase the plant&#8217;s capacity. All this is aimed at improving and upgrading the facility. In order to do this, an extension should be carried out. By definition, an &#8216;extension&#8217; is a type of construction that creates a new part of an existing building. Historically, this type of project has involved a decision to take a facility out of service. Nowadays, with the development of technical know-how, computer programmes, the sophistication of construction machinery and equipment improving quality and safety, extensions are carried out without interrupting production processes or with partial shutdowns.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Most often, the extension of a hall involves increasing its length, less often the width. Some of the main aspects to look out for when considering the extension of a hall are discussed below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"532\" src=\"https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_0012D.jpg\" alt=\"rozbudowa hali\" class=\"wp-image-8579\" srcset=\"https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_0012D.jpg 800w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_0012D-300x200.jpg 300w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_0012D-768x511.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The extension of the steel hall can be planned as early as the design stage. This is the most favourable scenario. This makes it possible to introduce pre-conceived solutions that will allow an increase in the usable area of the building to be carried out easily in the future. Therefore, it is good practice among designers to design roof and wall bracing at the fore rather than at the extreme beams. By placing these elements between the second and third frames counting from the beginning and end of the hall, the later&nbsp;<strong>hall expansion<\/strong>&nbsp;does not affect the bracing system, nor does it require reworking the structure during assembly. Another solution used with a view to future hall expansion is to make the outermost frames from the same sections as the inner frames. Before expansion, they are less stressed and may appear to be inefficiently used elements, but at the time of expansion, the end frame becomes the inner frame and its strain increases significantly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Things are different when&nbsp;<strong>the extension of the hall<\/strong>&nbsp;had not been assumed at the design phase. Increasing the length of a steel or reinforced concrete hall is most often done by adding additional frames, as mentioned earlier. This is not a major execution problem, but it note that in this situation the gable wall frame becomes the inner frame and takes the load from the larger roof area. This must be taken into account in the static-strength calculations. Sometimes it becomes necessary to double the gable frame by adding a new gable frame for a new hall, in the immediate vicinity of the existing one, which usually involves widening the foundations. Expansion of a warehouse is more often achieved by increasing its width. This is done by adding one or more adjacent aisles, depending on the needs of the investor. If the existing columns have an adequate reserve of load-bearing capacity they can be used to support the designed rafters. If this is the case, note that they become internal poles and thus have to take on greater impacts.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hall extension vs. fire conditions<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">It goes without saying that extending a production and storage hall increases its usable floor space. It is important to note that as this parameter increases, the fire zone of the building may change.\u00a0<a href=\"https:\/\/commercecon.pl\/en\/industrial-facilities\/production-halls\/\">Production halls<\/a>\u00a0i\u00a0<a href=\"https:\/\/commercecon.pl\/en\/industrial-facilities\/warehouses\/\">storage halls<\/a>\u00a0are classified as PM (production and storage) in terms of fire conditions.\u00a0 The fire load density Q, measured in MJ\/m<sup>2<\/sup>, is used as the basis for classification in this category and is related to the amount of materials present in the hall that can be ignited. So a hall with a larger surface area will be designed to store more of these materials, plant or equipment. An increase in the area of the fire zones is permitted on condition that:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>protection of the zone is provided with fixed automatic water extinguishing systems,<\/li>\n\n\n\n<li>automatic smoke extractors are provided,<\/li>\n\n\n\n<li>the building contains no potentially explosive atmospheres and is made of non-fire-spreading elements.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Alternatively, the most common solution to leave the original division of fire zones is to build a fire separation wall. It is a masonry wall strengthened with reinforced concrete monolithic rims and studs. Note that such a wall must provide the load-bearing, insulating and fire tightness (REI) performance. This divides the total area of the hall into smaller zones that meet the requirements of the regulation.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"532\" src=\"https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_0009D.jpg\" alt=\"rozbudowa hali stalowej\" class=\"wp-image-8584\" srcset=\"https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_0009D.jpg 800w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_0009D-300x200.jpg 300w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_0009D-768x511.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Expansion plan for a hall<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A well-planned warehouse or production hall extension will have tangible benefits for both, the investor and the contractor. For both actors in this project, lead time is important. From the investor&#8217;s point of view, the most important factor is that the production of the plant should take place without interruption due to expansion. If this is unavoidable, of course, this has to be kept as short as possible.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"532\" src=\"https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0005D-1.jpg\" alt=\"rozbudowa hali przemys\u0142owej\" class=\"wp-image-8586\" srcset=\"https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0005D-1.jpg 800w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0005D-1-300x200.jpg 300w, https:\/\/commercecon.pl\/wp-content\/uploads\/2024\/01\/0803_Electropoli_D_0005D-1-768x511.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Please note that this type of work requires planning permission. It is therefore worth thinking about this in advance, as the waiting time for such a document is several weeks. Once the planning permission has been granted, work on the site begins. The structural axes must be determined by surveying, followed by the earthworks, i.e. the excavation, reinforcement and concreting of the footings. Once the concrete is strong enough, you can move on to installing the steel structure of the additional frame or aisle. The work ends with the installation of cladding with the necessary door and window flashings.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">From the contractor&#8217;s point of view, the extension of an existing hall differs from the construction of a newly designed facility. The proximity of existing buildings makes earthworks and the installation of the structure itself very challenging. It is crucial to create a schedule linked in time to the work of the extended facility. This will ensure that the work is carried out efficiently and safely. It is the safety of the crew and of the equipment and machinery that is the most important factor on the part of both, the investor and the contractor.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-style-container-small\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<style>\n    @media (max-width:1023px) {\n        .spacer-block_0b59fbf6a944c092ba18d746abf0285d {\n            height: 10px;\n        }\n    }\n    @media (min-width:1024px) {\n        .spacer-block_0b59fbf6a944c092ba18d746abf0285d {\n            height: 50px;\n        }\n    }\n<\/style>\n<div class=\"spacer spacer-block_0b59fbf6a944c092ba18d746abf0285d\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-x-large-font-size\">Q&amp;A<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What is a building extension and when is it necessary?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A building extension project involves the construction of a new section of the existing building in order to increase its usable floor area. It is most often driven by the need to increase production capacity, storage capacity or to install new machinery. This can mean increasing its length, width or adding more sections to the structure. Contemporary technologies allow for extension with little or no disruption to the building\u2019s operations.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How to plan a building extension at the design stage?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It is best to provide for potential extension as early as the initial design stage of the building. Designers use roof and wall bracing in the penultimate bays, which makes it easier to add new segments at a later date. The outer frames are designed so that they can serve as internal frames when the building is extended. This approach minimises the need to interfere with the existing structure and speeds up the project\u2019s completion.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How can you extend a building when this was not planned earlier?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In such cases, the length of the building is increased by adding further frames, or its width is extended by adding bays. Additional roof loads and static loads on the existing frames must be considered. Sometimes it is necessary to reinforce the foundations or double the gable frames. Accurate engineering calculations ensure the safety and durability of the extension.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How does the extension affect the fire safety conditions in the building?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Increasing the building\u2019s floor area may require a change to the fire zone classification in accordance with the relevant standards. Designers must provide for the fire load density and the quantity of flammable materials in the case of production and storage buildings. Installing fixed fire suppression and smoke extraction systems may be necessary. Such measures ensure the safety of staff and protect property within an extended facility.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What practices facilitate the smooth building extension?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It is important to plan the structure in advance, use prefabricated components, avoid on-site welding and ensure material compatibility. Co-ordination with the contractor helps to avoid production downtime. The well-thought-out arrangement of the braces and frames reduces the time taken to fit new segments. This ensures a quick and safe extension without disrupting operations in the existing building.<\/li>\n<\/ul>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is a building extension and when is it necessary?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A building extension project involves the construction of a new section of the existing building in order to increase its usable floor area. It is most often driven by the need to increase production capacity, storage capacity or to install new machinery. This can mean increasing its length, width or adding more sections to the structure. 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