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NEWS


CONCRETA 2017   (2017-11-20)

Visit  CONCRETA – International Construction Exhibition” since the 23rd until the 26th November 2017, between 10h00 and 19h00 in Exponor – Porto - Portugal.

We will present news in the domain of the thermal treatment of edifications with new reflective insulation.

Visit us Pavilion 5, stand A10

                                                                                                                                                                              Discharge your Concreta - Electronic Invitation

 


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CONCRETA 2017   (2017-10-30)

Reflectherm, Lda will participate on CONCRETA – International Construction Exhibition” since the 23rd until the 26th November 2017, between 10h00 and 19h00 in Exponor – Porto - Portugal.

Visit us Pavilion 5, stand A10



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INFORMATIVE NOTE   (2017-01-20)

 

Informative Note about the Value of the Thermal Resistance of the Multilayers Quilts

We are daily consulted about the evaluation method of the multilayer quilts; that is why we publish the Reflectherm opinion that is consistent with official organisms.

Definitions / Values

Thermal Conductivity - The thermal conductivity is:

 

Polyethylene foams

0,04 W/m2.°C

Polyester Fibres

0,05 W/m2.°C

Non-perforated multi-layer quilt

0,04 W/m2.°C

Sewed or Pasted multi-layer quilt

0,045 W/m2.°C

 

Therefor and for an example of a 25mm thick quilt, multi-layer glued its intern Thermal resistance is:

0,025

=0,55 m2.°C /W

0,044

 

If the same quit is not perforated and does not have intermediate collages, its resistance will be:

0,025

=0,625 m2.°C/ W

0,04

 

To this value, we have to add the thermal resistance of the air box, if and only if it is not ventilated, with the value of 0.53 m2 ° C / W for the perforated quilts and 0.57 m2 ° C / W for the seamless and without welds quilts.

In the Roofing situation so that it can exist 2 non-ventilated air boxes, it is necessary to place another product;  which promotes the existence of the second air box, otherwise we will only have one air box + the internal heat resistance of the product.

The under tile air box is ventilated and its thermal resistance is zero (0)

 

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CONSTRUMAT 2017   (2016-12-01)

Reflectherm, Lda will participate on “Construmat” since the 23rd until the 26th May 2017 in Barcelona - Spain.

Visite us!



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CONSTRUTEC - IFEMA - MADRID   (2016-10-31)

Construtec was a success!

We would like to thank you for your presence in our stand.

We are at your disposal for any desired clarification. 





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