Sint Gummaruskerk 4156

St Gummarus church Lier

Building physics research for sustainable climate control.
  • Partners: Agentschap Onroerend Erfgoed

  • Client: City and OCMW Lier

  • Timing: 2021

  • Status: Executed

  • Photographer: N. Moyaert

  • Advisors: Royal Institute for Art Heritage (KIK) – Cel Preventieve Conservatie

Energy audit: building physics, structural and installation engineering audit for sustainable climate management. This audit complies with and follows the guidelines of the Agency for Real Estate Heritage and is based on European directive EN16883.

Step 1: Analysis

In the first preparatory phase, the existing condition of St Gummarus church is comprehensively mapped. We distinguish between data concerning the building envelope, the interior climate, the state of preservation of immovable heritage elements and cultural goods and the already established heritage valuation.

Step 2: Recommendations

When developing the recommendations, we look first of all at the possible passive measures that optimise the hygrothermal inertia and performance of the building and the preservation condition of the movable and immovable heritage elements.

The aim is to

  • provide structural solutions to building physics problems,
  • reduce risks and control measures
  • and enable a more stable indoor climate.

In the next phase, active and energy-consuming measures are examined to ensure the preservation conditions and user comfort set out. Annual and daily fluctuations are smoothed out and supplemented by active techniques to achieve the targeted comfort.

Step3: Impact analysis

The structural and building physics risk analysis uses simulation software to calculate the risk of surface condensation/mould, internal condensation, etc. This allows clear identification of the risks and feasibility to detailing as a function of heritage values.

Step 4: Reasoned choice

On the basis of the elaborated scenarios and the corresponding impact analysis, a clear recommendation with a reasoned choice of measures is worked out with a ranking in terms of impact.

  • Which choices are necessary for preventive conservation?
  • And which ones are complementary in function of the desired comfort level or risk management?

Meet our team of experts

From Team Sustainability, Energy & Comfort (2)

B B Martijn Vyncke 8087 Large

ing. Martijn Vyncke

Daglicht expert
Adviseur technische installaties
E-mail |
BB Robbe oct2014

ir. arch. Robbe Verelst

Energie- en duurzaamheidsadviseur
Ingenieur bouwfysica
E-mail |

From Team Renovation, Restoration & Maintenance (1)

Bert 569 A0759 Gemiddeld

arch. Bert Van den Bergh

Project architect
Advisor renovation & restoration
E-mail |

Would you like more about our building physics advice?

TAGS: Building physics, Comfort & Well-being