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href="/en/company/company-profile/career">Career</a></li></ul></li><a href="/en/company/news"><li><div id="c3935"></div> Stay up to date</a><ul class="nav__main--level-3"><li><a href="/en/company/news">News</a></li><li><a href="/en/company/buildings-of-the-month">Buildings of the Month</a></li><li><a href="/en/company/events">Events</a></li></ul></li><figure><img src="/theme/Public/Images/Astron-Zentrale-800x600_2022.jpg" width="800" height="600" alt="" ></figure></ul></li> </ul> </nav> </div> </div> </header> <main class="main"> <section class="stage"> <!--TYPO3SEARCH_begin--> <div id="c494"></div> <div class="inside stage__static"> <figure> <picture> <source srcset='/fileadmin/global/Building_system/Products/roof/polar_roof/polar-roof_1140x500_bild.jpg' media='(min-width:1025px)'> <source srcset='/fileadmin/_processed_/1/7/csm_polar-roof_1140x500_bild_3ebc6c10a8.jpg' media='(min-width:769px)'> <source srcset='/fileadmin/_processed_/1/7/csm_polar-roof_1140x500_bild_95b69c4b42.jpg' media='(min-width:481px)'> <img srcset='/fileadmin/_processed_/1/7/csm_polar-roof_1140x500_bild_7f7c0f0a9c.jpg' title='' alt='Building System – Roofs – Polar roofs'> </picture> <figcaption> <p>Roof</p> <p>Sandwich panel roof system Polar</p> </figcaption> </figure> </div> <!--TYPO3SEARCH_end--> </section> <div id="page-buildingsystem-detail"> <nav class="nav__breadcrumb mobile-hidden"> <ul><li><a href="/en/">en</a></li><li><a href="/en/building-system">Building System</a></li><li><a href="/en/building-system/products">Products</a></li><li><a href="/en/building-system/products/roofs">Roofs</a></li><li class="active">Sandwich panel roof system Polar</li></ul> </nav> <section class="inside"> <div class="gr gr--g-xl gr--full l-gr--fit"> <div class="gc"> <!--TYPO3SEARCH_begin--> <div id="c24207"></div> <div class="text__columnize--1"> <h1>Sandwich panel roof system</h1> </div><div id="c493"></div> <div class="text__columnize--1"> <h2>Polar roof</h2> <p>Polar panels consist of two profiled ribbed coated steel panels, produced by cold roll forming, between which CFC-free polyurethane foam is factory injected. Different <a href="/en/building-system/products/roofs/astrotherm-insulation" title="Astrotherm insulation" target="_blank">insulation</a> thicknesses and panel profiles are available within the Polar sandwich panel roof system. The U-values of the different products are those published by the panel manufacturers.</p> </div> <!--TYPO3SEARCH_end--> </div> <div class="gc"> <div class="box__facts bg__blue--dark"> <!--TYPO3SEARCH_begin--> <div id="c484"></div> <h3>Advantages of sandwich panel roof</h3> <ul class="text__columnize--1 checkmarks--highlight"> <li> High degree of thermal insulation </li> <li> Aesthetical interior finish </li> <li> Quick erection </li> <li> Easy maintenance </li> <li> Large range of integrated accessories </li> <li> Fixed with stainless steel screws </li> </ul> <!--TYPO3SEARCH_end--> </div> </div> </div> </section> <section class="bg__gray--light"> <div class="inside"> <div class="gr gr--g-xl gr--full l-gr--fit"> <div class="gc u-l-1of3"> <!--TYPO3SEARCH_begin--> <div id="c485"></div> <h3>Technical Specifications</h3> <ul class="text__columnize--1 checkmarks"> <li> All standard thicknesses available </li> <li> Higher thicknesses on demand </li> </ul> <!--TYPO3SEARCH_end--> </div> <div class="gc"> <!--TYPO3SEARCH_begin--> <div id="c3812"></div> <figure class="c7 "> <img class="base-image" alt="Building System – Roofs – Polar roofs" src="/fileadmin/_processed_/4/e/csm_Polar-Roof_Technical_1140x500_1afa5f7f89.jpg" width="541" height="237" /> </figure> <!--TYPO3SEARCH_end--> </div> </div> </div> </section> <section class="bg__gray--light"> <div class="inside"> <div class="gr gr--g-xl gr--full l-gr--fit"> <div class="gc u-l-1of3"> <!--TYPO3SEARCH_begin--> <div id="c3736"></div> <h3>Accessories for PUF panel roof</h3> <ul class="text__columnize--1 checkmarks"> <li> <a href="/en/building-system/products/accessories/skydomes">Sky domes</a> </li> <li> <a href="/en/building-system/products/accessories/smoke-vents">Smoke vents</a> </li> <li> Roof jack </li> <li> Roof curbs </li> <li> Ventilators </li> </ul> <!--TYPO3SEARCH_end--> </div> <div class="gc"> <!--TYPO3SEARCH_begin--> <div id="c530"></div> <figure class="c7 "> <img class="base-image" alt="Building System – Roofs – Polar roofs" src="/fileadmin/_processed_/1/7/csm_polar-roof_1140x500_bild_7125b32861.jpg" width="541" height="238" /> </figure> <!--TYPO3SEARCH_end--> </div> </div> </div> </section> <section class="inside"> <!--TYPO3SEARCH_begin--> <div id="c812"></div> <h2>Colours and coatings of Astron PUF panel roof</h2> <div class="box box__tabs"> <input type="radio" title="tab-one" name="tabs-state" id="tab-one" checked /> <label for="tab-one" id="tab-one-label" class="tab__label"></label> <div class="gr gr--g-xl gr--full m-gr--fit tab__panel" id="tab-one-panel"> <div class="gc u-m-2of3 u-l-3of4"> <div class="gr gr--g-xl gr--full l-gr--fit"> <div class="gc"> <figure> <img alt="Building System – Roofs – Polar roofs" src="/fileadmin/global/Building_system/Products/roof/polar_roof/polar-roof_1140x500_01.jpg" width="1140" height="500" /> </figure> </div> <div class="gc"> <ul class="squares"><li>The Polar roof systems offers different coatings satisfying the various climatic requirements. </li><li>Exterior coatings and colours are those published by the panel manufacturer</li><li>Interior coatings: Superpolyester in grey white</li></ul> </div> </div> </div> </div> </div> <!--TYPO3SEARCH_end--> </section> <section class="bg__gray--light"> <div class="inside"> <!--TYPO3SEARCH_begin--> <div id="c3939"></div> <div class="text__columnize--1"> <h2>Product usage</h2> </div> <ul class="gr gr--g-xl gr--full s-gr--1of2 l-gr--fit"> <li class="gc"><div id="c2644"></div> <div class="gc "> <a href="/en/buildings/steel-frame-buildings/aircraft-hangar-building"> <picture> <source srcset='/fileadmin/_processed_/8/d/csm_hangar-136093-1-link_958ded1035.jpg' media='(min-width:1024px)'> <source srcset='/fileadmin/_processed_/8/d/csm_hangar-136093-1-link_742c24dc79.jpg' media='(min-width:768px)'> <source srcset='/fileadmin/_processed_/8/d/csm_hangar-136093-1-link_958ded1035.jpg' media='(min-width:480px)'> <img srcset='/fileadmin/_processed_/8/d/csm_hangar-136093-1-link_df7fd21c1a.jpg' title='' alt='Hangar'> </picture> </a> <h3>Hangar</h3> <p>Domodedovo airport in Moscow is one of the largest passenger airports in Russia. This is the starting point of both national and international flights…</p> <a href="/en/buildings/steel-frame-buildings/aircraft-hangar-building" class="btn btn__more"> Learn more </a> </div></li> <li class="gc"><div id="c2645"></div> <div class="gc "> <a href="/en/buildings/logistics-buildings/steel-warehouse-building"> <picture> <source srcset='/fileadmin/_processed_/b/3/csm_photo-3416-4-2-02_5cc016da70.jpg' media='(min-width:1024px)'> <source srcset='/fileadmin/_processed_/b/3/csm_photo-3416-4-2-02_73232f9019.jpg' media='(min-width:768px)'> <source srcset='/fileadmin/_processed_/b/3/csm_photo-3416-4-2-02_5cc016da70.jpg' media='(min-width:480px)'> <img srcset='/fileadmin/_processed_/b/3/csm_photo-3416-4-2-02_891e714c9a.jpg' title='' alt='Warehouse for Order Picking'> </picture> </a> <h3>Warehouse for Order Picking</h3> <p>This 5,500 m² order-picking warehouse was built for Völker GmbH, a company located near Stuttgart. The customer specialises in the import and export…</p> <a href="/en/buildings/logistics-buildings/steel-warehouse-building" class="btn btn__more"> Learn more </a> </div></li> <li class="gc"><div id="c2647"></div> <div class="gc "> <a href="/en/buildings/production-halls/steel-frame-building"> <picture> <source srcset='/fileadmin/_processed_/9/1/csm_repair-shops-1-link_b60d5d7e0f.jpg' media='(min-width:1024px)'> <source srcset='/fileadmin/_processed_/9/1/csm_repair-shops-1-link_64959b9bf4.jpg' media='(min-width:768px)'> <source srcset='/fileadmin/_processed_/9/1/csm_repair-shops-1-link_b60d5d7e0f.jpg' media='(min-width:480px)'> <img srcset='/fileadmin/_processed_/9/1/csm_repair-shops-1-link_895ec3babe.jpg' title='' alt='Repair Shop'> </picture> </a> <h3>Repair Shop</h3> <p>The car dealership with adjoining repair workshop in the Ukraine was erected in just two months with the help of our authorised Builder Partner Sakti…</p> <a href="/en/buildings/production-halls/steel-frame-building" class="btn btn__more"> Learn more </a> </div></li> <li class="gc"><div id="c2648"></div> <div class="gc "> <a href="/en/buildings/office-buildings/sustainable-office-building"> <picture> <source srcset='/fileadmin/_processed_/6/7/csm_office-with-curved-roof_01_link_fbc5c4e191.jpg' media='(min-width:1024px)'> <source srcset='/fileadmin/_processed_/6/7/csm_office-with-curved-roof_01_link_cab51f2c0e.jpg' media='(min-width:768px)'> <source srcset='/fileadmin/_processed_/6/7/csm_office-with-curved-roof_01_link_fbc5c4e191.jpg' media='(min-width:480px)'> <img srcset='/fileadmin/_processed_/6/7/csm_office-with-curved-roof_01_link_5d52998a78.jpg' title='' alt='Office with curved roof'> </picture> </a> <h3>Office with curved roof</h3> <p>The Astron “Building of the Month” is located in Denmark, near the Copenhagen airport. Within twelve months this attractive steel building was erected…</p> <a href="/en/buildings/office-buildings/sustainable-office-building" class="btn btn__more"> Learn more </a> </div></li> </ul> <!--TYPO3SEARCH_end--> </div> </section> <hr /> <section class="inside"> <div class="gr gr--g-xl gr--full l-gr--fit"> <div class="gc u-full"> <!--TYPO3SEARCH_begin--> </div> <div class="gc"> <div id="c2604"></div> <figure class="c7 "> <img class="base-image" alt="Building System – Roofs – Polar roofs" src="/fileadmin/_processed_/1/c/csm_Polar_roof_Erection_aee9d6b7b5.jpg" width="541" height="288" /> </figure> <div id="c24202"></div> <hr class="divider"/> </div> <div class="gc u-m-1of3"> <div id="c769"></div> <ul class="documents text__columnize--1"> <li> <a href="/fileadmin/en/PDF/Astron_Product_Selector_EN.pdf" target="_blank" class="btn btn__icon--pdf">Product Selector</a> </li> </ul> </div> <!--TYPO3SEARCH_end--> </div> </section> </div> </main> <footer class="footer"> <div class="inside"> 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width=72 height=72 alt="Astron" /> <h3> Your nearest contact </h3> <address id="nearest-contact" class="vcard"> <p class="org" data-bind="title">Astron Buildings S.A.</p> <p class="street-address" data-bind="street">Route d'Ettelbruck</p> <p><span class="postal-code" data-bind="postalcode">9230</span> <span class="locality" data-bind="place">Diekirch</span></p> <p data-bind="country">Luxembourg</p> <p> <a href="tel:+352802911" class="tel" data-bind="phone">+352 802 91-1</a> </p> <p><a class="email" href="mailto:info@astron.biz" data-bind="mail">info@astron.biz</a></p> </address> </div> <div class="gc tablet-hidden"> <nav class="nav__footer"> <h3><a href="/en/buildings">Buildings</a></h3> <ul> <li><a href="/en/buildings/logistics-buildings">Logistics Buildings</a></li><li><a href="/en/buildings/production-halls">Production Halls</a></li><li><a href="/en/buildings/office-buildings">Office buildings</a></li><li><a href="/en/buildings/multi-storey-car-parks">Multi-storey Car 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