Blown-in roof insulation

<p>Blown-in roof insulation involves projecting loose-fill insulation onto the attic floor until a continuous layer covers the entire surface. It treats <strong>hard-to-reach unused attics</strong>, where fitting rigid panels would be difficult, and reduces heat loss through the top of the building. The technique suits houses with an unconverted roof space, cluttered attics and irregular surfaces. Depending on the configuration, the material blown in is rock wool, cellulose or glass fibre, applied at a <strong>thickness of 24 to 32 cm</strong> over a roof of around 60 to 100 m².</p>
<p>Here is what a specialist is able to handle :</p>
<ul>
<li><strong>The inspection</strong> of the attic and the substrate, identifying thermal bridges and fragile areas.</li>
<li><strong>The preparation</strong> of the site and protection of hatches, ducts and spotlights before projection.</li>
<li><strong>The mechanical blowing</strong> of the insulation, spread in an even layer across the whole surface.</li>
<li><strong>The treatment</strong> of singular points, technical ducts and roof-frame passages.</li>
<li><strong>The check</strong> of the blown thickness using markers placed on the floor.</li>
<li><strong>The cleaning</strong> of the site and removal of the protections once finished.</li>
</ul>
<p>Once the layer is spread, the roof has an <strong>even level of insulation</strong> that limits temperature swings between the seasons and lowers the building's heating needs. The result stays stable as long as the layer is neither compacted nor displaced.</p>
<div class="faq" style="display:none;">
<h3>Frequently asked questions</h3>
<ul>
<li><strong>Why this service ?</strong> To improve the thermal performance and comfort of the building.</li>
<li><strong>What is the typical duration ?</strong> About one day depending on the surface and the accessibility of the attic.</li>
<li><strong>How often ?</strong> Generally once per complete installation.</li>
</ul>
</div>