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container-fluid"> <div id="inner-content" class="row"> <div class="wrapper-top-row col-12"> <div class="templatera_shortcode"><p><div class="vc_row wpb_row vc_row-fluid"><div class="wpb_column vc_column_container vc_col-sm-12"><div class="vc_column-inner"><div class="wpb_wrapper"> <div class="wpb_raw_code wpb_raw_js ad-object" > <div class="wpb_wrapper"> <broadstreet-zone zone-id="147584"></broadstreet-zone> </div> </div> </div></div></div></div></p> </div> </div> <main id="main" class="col-sm-12 col-12 col-md-8" role="main" itemscope itemprop="mainContentOfPage" itemtype="http://schema.org/WebPageElement"> <article id="post-12984" class="cf post-12984 post type-post status-publish format-standard hentry category-envelope-materials category-uncategorized category-white-papers single cf" role="article" itemscope="" itemtype="https://schema.org/Article" data-post-id="12984"><div class="basic-content-wrap cf"> <div class="basic-content-wrap cf"> <h1 class="entry-title">An Introduction to Structural Ventilation of the Building Envelope</h1> <h5 class="subtitle">Improve Air Quality, Reduce Energy Consumption, Minimize Moisture Contamination and Deterioration</h5> <div class="entry-meta-wrapper"> <div class="entry-meta entry-date"> <time class="updated entry-time" itemprop="datePublished">July 13, 2022</time> </div> <div class="entry-meta entry-author multiple-bylines"> <span class="by"></span> <a href="https://www.hpbmagazine.org/author/sam-vacek/">Sam S. Vacek, BSArE, MSCE, PE</a><span class="author-sep">, </span> </div> </div> <p>In the mid 1970鈥檚, the oil embargo resulted in rising energy costs. In an attempt to reduce these costs, the minimum building outside air intake was reduced to 5 cfm per person. This minimum still exists today.</p> <h3><a href="https://www.hpbmagazine.org/content/uploads/2022/07/s/t/Vacek-White-Paper-07.12.22.pdf">Download Sponsored White Paper</a></h3> <p> </p> <p>  </p> <div class="article-categories-tags"> <div class="article-categories"> <span class="article-taxonomy-label article-taxonomy-label-categories">Categories<span class="colon">:</span></span> <a class="article-taxonomy" data-taxonomy-type="category" data-mp-link-type="article taxonomies" href="https://www.hpbmagazine.org/category/envelope-materials/" rel="category tag">Envelope & Materials</a><span class="comma">,</span> <a class="article-taxonomy" data-taxonomy-type="category" data-mp-link-type="article taxonomies" href="https://www.hpbmagazine.org/category/white-papers/" rel="category tag">White Papers</a> </div></div> <div class="ssba-modern-2 ssba ssbp-wrap left ssbp--theme-2"><div style="text-align:left"><ul class="ssbp-list"><li class="ssbp-li--facebook"><a data-site="" class="ssba_facebook_share ssbp-facebook ssbp-btn" href="http://www.facebook.com/sharer.php?u=https://www.hpbmagazine.org/an-introduction-to-structural-ventilation-of-the-building-envelope/" target="_blank" ><div title="Facebook" class="ssbp-text">Facebook</div></a></li><li class="ssbp-li--pinterest"><a data-site='pinterest' class='ssba_pinterest_share ssbp-pinterest ssbp-btn' href='javascript:void((function()%7Bvar%20e=document.createElement('script');e.setAttribute('type','text/javascript');e.setAttribute('charset','UTF-8');e.setAttribute('src','//assets.pinterest.com/js/pinmarklet.js?r='+Math.random()*99999999);document.body.appendChild(e)%7D)());'><div title="Pinterest" class="ssbp-text">Pinterest</div></a></li><li class="ssbp-li--twitter"><a data-site="" class="ssba_twitter_share ssbp-twitter ssbp-btn" href="http://twitter.com/share?url=https://www.hpbmagazine.org/an-introduction-to-structural-ventilation-of-the-building-envelope/&text=An%20Introduction%20to%20Structural%20Ventilation%20of%20the%20Building%20Envelope%20" target="_blank" ><div title="Twitter" class="ssbp-text">Twitter</div></a></li><li class="ssbp-li--linkedin"><a data-site="linkedin" class="ssba_linkedin_share ssba_share_link ssbp-linkedin ssbp-btn" href="http://www.linkedin.com/shareArticle?mini=true&url=https://www.hpbmagazine.org/an-introduction-to-structural-ventilation-of-the-building-envelope/" target="_blank" ><div title="Linkedin" class="ssbp-text">Linkedin</div></a></li></ul></div></div> </div> </div></article> <div class="wrapper-article-footer"><div class="templatera_shortcode"><div class="vc_row wpb_row vc_row-fluid"><div class="wpb_column vc_column_container vc_col-sm-12"><div class="vc_column-inner"><div class="wpb_wrapper"><style type="text/css" media="screen"> .clt-19 .thumb-wrap { display: block;float: none;} .clt-19 .inner-thumb-wrap { padding: 66.67% 0 0 0; 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