{"id":6067,"date":"2025-10-27T11:35:02","date_gmt":"2025-10-27T10:35:02","guid":{"rendered":"https:\/\/dcalastudio.com\/?p=6067"},"modified":"2025-10-27T13:01:28","modified_gmt":"2025-10-27T12:01:28","slug":"materiales-inerciales-sostenibles-arquitectura","status":"publish","type":"post","link":"https:\/\/dcalastudio.com\/en\/materiales-inerciales-sostenibles-arquitectura\/","title":{"rendered":"Inertial and sustainable materials in architecture"},"content":{"rendered":"
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Inertial materials are those that have the ability to accumulate and release heat slowly<\/b>, helping to maintain stable interior temperatures in buildings. Thanks to its thermal mass<\/b> and its capacity to regulate humidity<\/b>, These materials have been key in traditional architecture and are now gaining prominence again in the context of sustainability.<\/p>

Historical examples such as adobe, rammed earth, stone or solid brick<\/b> They show how, for centuries, homes were built that could maintain coolness in the summer and warmth in the winter without the need for mechanical air conditioning systems. Today, research and innovation have led to new contemporary compounds<\/b> that seek to combine these properties with the strength and durability required by modern constructions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Traditional examples: adobe, rammed earth, stone and brick<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Adobe and rammed earth<\/b><\/h6>

Adobe and rammed earth are very ancient techniques that have been used from Mesopotamia to Al-Andalus. Basically, it involves mixing land<\/b> (clays, silts and sands) with plant fibers<\/b> such as straw or hemp. In more recent versions, a small amount of lime or cement is added to make them more resistant. Their great value is that they have a lot of thermal mass<\/b>, that is, a lot of capacity to accumulate heat. They also regulate the humidity<\/b>, helping to keep interiors more stable and comfortable.<\/p>

How they work:<\/b> Adobe walls (made from molded, sun-dried pieces) or rammed earth (earth rammed directly on site) absorb heat when it's hot outside and release it slowly when it cools. This effect has a time lag of about 8\u201310 hours in walls that are 40\u201360 cm thick, meaning that houses heat and cool more smoothly.<\/p>

Good practices:<\/b><\/p>

  • Protect them from water with a stone or brick base and eaves to prevent direct rain.<\/li>
  • Use lime plaster, which allows the wall to breathe and prevents moisture problems.<\/li>
  • Periodically check the finishes to repair minor erosion.<\/li><\/ul>

    Current examples:<\/b> Many traditional houses in the Mediterranean or in arid areas of Latin America are made of adobe or rammed earth. Nowadays, modern versions are also being used, such as compressed earth blocks (CEB)<\/b>, which improve strength and durability.<\/p>

    One of the companies currently investing in this system is Feddeterra, offering innovative solutions to further develop this construction system.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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    Image of a single-family home in Rupi\u00e0 by the architects Nordest Arquitectura and construction system. The walls of the home are finished with prefabricated earth blocks Tapialblock\u00ae 8\/100\/15 and the lattice with Tapialblock\u00ae 15\/100\/15.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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    Stone<\/b><\/h6>

    Stone has been one of the most widely used materials in the Mediterranean. We can find it in many varieties (limestone, sandstone, tuff, or granite). Its main value is that it is very dense and durable<\/b>, which gives it a great capacity to maintain stable interior temperatures. A 50\u201390 cm stone wall acts as a great thermal regulator: in summer it keeps interiors cool and in winter it retains heat better.<\/p>

    How to use it well:<\/b><\/p>

    • Join the pieces with lime mortar, which allows the wall to \u201cbreathe\u201d and prevents moisture from being trapped.<\/li>
    • When improved insulation is needed, use breathable solutions, such as lime plasters with thermal properties or mineral panels.<\/li>
    • Take advantage of thick walls to create deep window openings, which not only provide shade but also improve visual comfort.<\/li><\/ul>

      Examples:<\/b> Many historic Mediterranean houses and buildings, as well as Gothic cathedrals, are kept cool in summer by the mass of their walls and cross ventilation.<\/p>

      Solid brick<\/b><\/h6>

      Solid brick is an evolution of fired clay, offering greater strength and uniformity. In Spain, between the 19th and 20th centuries, it was widely used in urban architecture, especially in facades of varying thicknesses or with air chambers, which provided inertia and moisture control.<\/p>

      Main advantages:<\/b><\/p>

      • It has good thermal mass and therefore helps keep interior temperatures stable.<\/li>
      • It is fire resistant and very durable.
        It works well with lime mortars, which prevent cracks and allow the wall to remain in good condition.<\/li><\/ul>

        Aspects to take care of:<\/b><\/p>

        • Thermal bridges can occur where floors or window frames meet. These can be resolved with continuous insulation on the fa\u00e7ade or with interior solutions.<\/li>
        • In older buildings, performance can be improved by filling the chambers with mineral or natural insulation that is compatible with the wall's breathability.<\/li><\/ul>

          Current uses:<\/b> It remains a highly valued material in renovations and new constructions seeking solidity and comfort.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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          Innovation in architecture: new contemporary compounds<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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          Contemporary construction isn't just about reusing traditional materials like adobe and stone. New composites are also being developed that seek to combine the logic of thermal inertia with the demands of modern architecture. These materials maintain their natural temperature regulation capacity, but are also more resistant, durable, and easy to apply on site.<\/p>

          Main examples:<\/b><\/p>

          • Stabilized earth:<\/b> A mixture of soil with lime or cement. It's more resistant than traditional adobe and very sustainable, as it uses local resources. It's widely used today in the form of compressed earth blocks (CEBs).<\/li>
          • Dense concretes with recycled aggregates:<\/b> They provide thermal mass and reuse waste such as glass or slag. They reduce waste and promote the circular economy.<\/li>
          • PCM (phase change materials):<\/b> They are integrated into panels or plaster. They retain heat when the temperature rises and release it when it drops, keeping the interior temperature more stable.<\/li>
          • Hybrid ceramics:<\/b> They combine the inertial capacity of traditional ceramics with less weight and greater ease of assembly. Ideal for modern facades and modular systems.<\/li><\/ul>

            These materials demonstrate that tradition and innovation can go hand in hand, offering solutions that improve comfort, reduce energy consumption, and facilitate more sustainable and efficient construction.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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            Scientific evidence of thermal performance<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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            The effectiveness of inertial materials is not just a perception based on tradition, but is supported by numerous scientific studies. Research from universities and specialized centers has rigorously measured how these materials behave in different climatic conditions and housing types. The results clearly show that constructions with adobe, rammed earth, stone, or even modern composites such as PCM achieve reduced energy consumption, improved thermal comfort, and decreased dependence on mechanical air conditioning systems.<\/p>

            Outstanding scientific evidence:<\/b><\/p>

            • Energy and Buildings (2019):<\/i> This study showed that adobe houses could reduce between 20 and a 40%<\/b> the need for air conditioning in arid areas. In other words, earth walls help maintain a cooler interior and significantly reduce the use of air conditioning.<\/li>
            • UPC (2020):<\/i> The Polytechnic University of Catalonia analyzed 50 cm rammed earth walls in the Mediterranean and found that they reduced the thermal load by 30%<\/b> compared to lightweight walls. In practice, this means less heat entering the interior and greater comfort without having to use as much cooling.<\/li>
            • LBNL (2021):<\/i> Lawrence Berkeley National Laboratory found that buildings with high inertia reduced indoor temperature fluctuations by 35%<\/b>, which allows living in more stable spaces with less need for mechanical air conditioning.<\/li>
            • Cabeza et al. (2020):<\/i> This research team tested phase change materials (PCMs) on plasters and found that they increased by a 60% thermal storage capacity<\/b>. In practice, this translates into walls that retain more energy and release it when the temperature drops, improving the building's passive efficiency.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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              Life cycle analysis (LCA) of inertial materials<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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              When we talk about sustainability, it's not enough to look at how a material works inside the building. We also need to analyze its entire journey: from how it's extracted, how it's processed and transported, to how long it lasts and what happens to it when the building is renovated or demolished. This is called life cycle assessment (LCA)<\/b>.<\/p>

              Inertial materials often fare very well in these types of studies, especially when local resources are used.<\/p>

              • Adobe and rammed earth:<\/b> They generate virtually no CO emissions\u2082<\/span> in its manufacture, since only the earth needs to be molded or compacted.<\/li>
              • Stone:<\/b> Extracting and transporting it requires energy, but in return, it's a material that can last for centuries with little loss of quality. Its long lifespan largely compensates for the initial impact.<\/li>
              • Concrete:<\/b> It has a higher carbon footprint due to the use of cement, although this can be reduced by adding recycled aggregates.<\/li>
              • PCM and other modern compounds:<\/b> Their production may be more costly from an environmental point of view, but over the life of the building they help save a lot of energy in air conditioning.<\/li><\/ul>

                A clear example is given by a study by Elsevier (2021)<\/i>: an adobe wall has an approximate carbon footprint of 30 kgCO<\/b>\u2082<\/b><\/span>\/m\u00b2<\/b>, while a prefabricated lightweight wall made of steel and mineral wool can reach 120 kgCO<\/b>\u2082<\/b><\/span>\/m\u00b2<\/b>. Simply put, inertial materials generate fewer emissions and save more energy during the building's use phase, making them a highly valuable option within sustainable architecture.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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                The inertial and sustainable materials<\/b> They represent much more than a construction technique: they are a way of reconciling architecture with the environment. Their ability to maintain stable interior temperatures reduces the need for mechanical systems, which means less energy consumption and fewer emissions.<\/p>

                Tradition has left us clear examples of how adobe, rammed earth, stone, and brick have been able to respond to very demanding climates. Today, innovation allows us to combine that wisdom with modern compounds that expand the possibilities without losing sight of sustainability.<\/p>

                For architects and designers, choosing these materials is not just a technical issue, but also a commitment to the future. It means designing buildings that care for people and the planet at the same time. In a context of climate crisis, architecture has the opportunity to lead the change toward more resilient, healthy, and sustainable cities.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

                Discover how inertial and sustainable materials, from adobe to modern composites, improve comfort and efficiency at Dcala Studio.<\/p>","protected":false},"author":6,"featured_media":6104,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6067","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/posts\/6067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/comments?post=6067"}],"version-history":[{"count":11,"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/posts\/6067\/revisions"}],"predecessor-version":[{"id":6108,"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/posts\/6067\/revisions\/6108"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/media\/6104"}],"wp:attachment":[{"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/media?parent=6067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/categories?post=6067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dcalastudio.com\/en\/wp-json\/wp\/v2\/tags?post=6067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}