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![<p><strong>Advantages:</strong></p>
<ul>
<li>high and uniform vapour permeability<strong>,</strong></li>
<li>high elasticy and lighweight to facilitate instalation,</li>
<li>water proof, seal the roof,</li>
<li>very high mechanical durability,</li>
<li>very high resistance to UV radiation,</li>
<li>wide product range to facilitate the choice of a proper membrane,</li>
<li>complete information available for proper installation.</li>
</ul>
<p> </p>
<table border="1" cellpadding="3" cellspacing="0" width="560">
<tbody>
<tr>
<td align="center" bgcolor="#f3f2f2"><strong>PARAMETR</strong></td>
<td align="center" bgcolor="#f3f2f2"><strong>VALUE</strong></td>
</tr>
<tr>
<td align="center">material</td>
<td align="center">PP</td>
</tr>
<tr>
<td align="center">Mass [g/m2]</td>
<td align="center"><b>265</b>/+/-20</td>
</tr>
<tr>
<td align="center">Sd – diffusively equivalent air layer thickness (m) </td>
<td align="center">
<p><strong>0,015</strong></p>
<p>(+0,06/-0,01)</p>
</td>
</tr>
<tr>
<td align="center">Tearing resistance [N / 5cm]</td>
<td align="center">
<p>along 5<strong>00</strong><b> </b>(+/-200)</p>
<p>across 55<strong>0</strong><b> </b>(+/-200)</p>
</td>
</tr>
<tr>
<td align="center">Elongation by tearing [%]</td>
<td align="center">along<strong> 6</strong><strong>0</strong> (+40/-30)<br />
across 8<strong>0</strong> (+40/-30)</td>
</tr>
<tr>
<td align="center">Water tightness</td>
<td align="center"><strong>W1</strong></td>
</tr>
<tr>
<td align="center">Standard dimensions on a roll (m)</td>
<td align="center"> 1,6m x 25m</td>
</tr>
<tr>
<td align="center">Reaction to fire</td>
<td align="center"><strong>E -d2</strong></td>
</tr>
<tr>
<td align="center">UV resistance*</td>
<td align="center">26 weeks</td>
</tr>
<tr>
<td align="center">
<p>Period without primary covering**</p>
</td>
<td align="center">4 weeks</td>
</tr>
</tbody>
</table>
<p><span style="font-size:12px;">* According to laboratory studies conducted under artificial aging, this period is based on average annual UV exposure from sunlight in Central Europe.<br />
** The recommended period for the membrane to remain on the roof without primary covering should be as short as possible, depending on the membrane’s construction.</span></p>
<p> </p>](/gfx/marma/_thumbs/sklep_oferta/33/ekran_dachowy265,poWH32imk1fbp8HiV6Sp.jpg)
![<table background="http://www.marma.com.pl/lay/table_bg.gif" border="0" cellpadding="2" cellspacing="2" width="100%">
<tbody>
<tr>
<td style="text-align: center;"><strong>Width<br />
[m]</strong></td>
<td style="text-align: center;"><strong>Thickess<br />
[mm]</strong></td>
<td style="text-align: center;"><strong>Colour</strong></td>
<td style="text-align: center;"><strong>Type of perforation</strong></td>
</tr>
<tr>
<td style="text-align: center;">3</td>
<td rowspan="8" style="text-align: center;">0,055</td>
<td rowspan="8" style="text-align: center;">transparent</td>
<td rowspan="8" style="text-align: center;">100 holes/m<sup>2</sup> , 10 mm bore*<br />
*for special order different kinds of perforations and widths and anticondesation</td>
</tr>
<tr>
<td style="text-align: center;">3,2</td>
</tr>
<tr>
<td style="text-align: center;">3,4</td>
</tr>
<tr>
<td style="text-align: center;">3,6</td>
</tr>
<tr>
<td style="text-align: center;">4,2</td>
</tr>
<tr>
<td style="text-align: center;">4,8</td>
</tr>
<tr>
<td style="text-align: center;">5,0</td>
</tr>
<tr>
<td style="text-align: center;">5,4</td>
</tr>
</tbody>
</table>](/gfx/marma/_thumbs/sklep_oferta/13/perforowana_2,poWH32imk1fbp8HiV6Sp.jpg)
