Zaventem · 1930
Flat roof waterproofing à Zaventem
Flat roofs, terraces and extensions: EPDM, bitumen felt or liquid resin. In Zaventem it is striking how many enquiries concern what sits under the tiles.
9 km from our depot in Grimbergen
What that changes here
On the periphery, the flat roofs over extensions and garages are almost always under trees. A single blocked outlet turns the roof into a pond, and that weight of water forces the weak points. Balloon gratings and an overflow matter more here than the membrane itself.
Zaventem lives with the airport: over the decades many houses have had extra insulation and acoustic work carried out in the roof. That work was not always done carefully, and we regularly find a crushed air gap or a missing vapour barrier.
What we get called out for in Zaventem
In Zaventem it is striking how many enquiries concern what sits under the tiles. Over the years many roofs have had an extra layer of insulation or acoustic work; we get called when damp gets involved. Alongside that, the ordinary work: gutters, roof windows and slopes at the end of their life.
Zaventem porte le code postal 1930 et se situe in the northern periphery of Brussels. Notre équipe part de Grimbergen, à 9 km : nous y planifions l’étanchéité de toit plat en même temps que les chantiers de Kraainem, Machelen et Wezembeek-Oppem, pour qu’un déplacement serve plusieurs toitures.
- 01Tracing
- 02Diagnosis
- 03Renewal
- 04Final test
The full technical detail of this service is on the page Flat roof waterproofing.
Leak tracing zone by zone, never guesswork
0492 95 94 94The service in detailAll services in ZaventemCommon questions
Pour un devis, la visite à Zaventem se fixe en général sous quelques jours ouvrés. Nous partons de Grimbergen, à 9 km, et nous groupons nos visites par secteur : si un chantier tourne déjà cette semaine à Kraainem ou Machelen, cela peut aller plus vite. En cas de fuite active, nous venons d’abord bâcher et sécuriser ; l’étanchéité de toit plat n’est chiffrée qu’ensuite.
EPDM is laid in a single piece, with no seams across the field of the roof, and lasts thirty to fifty years if it is laid properly: it is the logical choice for an extension or a terrace of normal size. Torch-on bitumen felt still makes sense on large areas and complicated decks. The deck and the actual falls decide, not the catalogue.
Not always. If the deck is sound and the insulation dry, an overlay is possible and costs considerably less. We always probe the insulation: covering over waterlogged insulation means shutting the problem in for ten years.
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Flat roof waterproofing à Zaventem
We come out, we go up onto the roof, we photograph. The quotation follows within 24 working hours, item by item.
Not sure about your roof?
The visit costs nothing and the quotation follows within 24 hours. One call is enough to know where you stand.