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Residential and commercial buildings

BlowerDoor simulation flows

Since energy costs are currently increasing, Thermal measurement services can offer a decrease in energy bills, as well as a higher level of comfort. We offer a total package of different quality measurements such as: air tightness, indoor air quality, thermography, ventilation and sound. We can even provide assistance in helping you achieve a energy neutral home with our advanced equipment.

Air permeability

BlowerDoor simulatiestromen

BlowerDoor simulatiestromen

The measurement of the air permeability of the building envelope can, unlike thermographic research, quantitatively determine the extent of existing air leaks. Moreover, the location of air leakages can be determined. According to NEN 2686, the measured air permeability for residences can be compared to the Buildings Decree requirements along with the value that is utilized for the calculation of the energy coefficient.

For the test method of air permeability in conformity with NEN 2686 / NEN-EN 13829, the building is, with the aid of a fan, put on under- or over pressure, whereupon the air quantity is measured in order to maintain a certain level of under- or over pressure. This measurement is performed at different types of pressure. The results of these measurements are then displayed in a pressure- volume curve, a graphical representation of the relationship between the air flow and difference of air pressure. On this basis, the volume flow is determined by a differential pressure of 10 Pa, also known as the characteristic air flow (qv, 10, cart).

Buildings Decree and EPC infiltration value:
qv10 and qv10kar
In the Buildings Decree is that the air permeability of the air flow is generated through the cracks and seams between the various components within the envelope of a building at a pressure differential of 10 Pascal, called qv10 value. For a building of 500 m3, the value is:
Class 1: Basic: qv10 a maximum of 200 dm3/s (0,2 m3/s) a qv10/m2 of 1 dm3/s.m2) (qv10 EPC calculation)
Class 2: Good: qv10 a maximum of 80 dm3/s (from 250 m3 building volume), a qv10/m2 of 0.6 dm3/(s.m2)
Class 3: excellent: qv10 a maximum of 30 dm3/s (from 250 m3 building volume), a qv10/m2 of 0.15 dm3/(s.m2) Source SBR publication “Airtight Building – therorie, design, practice.”

When speaking about the “qv, 10, cart” this is the building of a 500 m3 qv10 converted value; the qv10, cart is used in large buildings.
In place of the value of V50 is not at a overpressure of 50 Pa, but measured to 10 Pa.

BREEAM credit ENE 26

For additional information BREEAM ENE 26 – Assuring quality thermal building envelope
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italics Dutch redgels !

  • Residential and commercial buildings
  • Passive house standard
  • Hospitals
  • Data centers & computer rooms
  • Cold stores
  • Thatched roof constructions
  • Leak Detection
  • BlowerDoor XL
  • Rental BlowerDoor
  • Sales BlowerDoor

Reference projects

  • Waterland Hospital in Purmerend
    Waterland Hospital in Purmerend
  • University Medical Center Utrecht
    University Medical Center Utrecht
  • newAmsterdam building Amsterdam Southeast
    newAmsterdam building Amsterdam Southeast
  • Erasmus MC hospital in Rotterdam
    Erasmus MC hospital in Rotterdam
  • Blowerdoortest woning St. Nicolaasga https://t.co/jCQ4sH7SwW via @KramersBB over a year ago
  • Super goed gedaan, erg leuk om zulke resultaten te meten ! https://t.co/Y5zZbudb5E over a year ago
  • Testen van Ellen- tochtprofielen voor Elton BV https://t.co/fYHxe9NEc0 over a year ago
  • RT @blowertechnic: Simultane Blowerdoor meting van 7 woningen te Nederland! Samen met collega Herman Bos van Thermodicht. Wat een leuke sam… over a year ago
  • Sponsor van Het BeterBoek Waterland Ziekenhuis Purmerend https://t.co/tQ2A8LRMh7 over a year ago

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Thermodicht
Waardeel 5
9756 AP Glimmen
E info@thermodicht.eu
T +31 50 260 50 50

KvK Groningen 01143872
Btw nr. NL098072675B01

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