A flat roof that stands the test of time. We take care of every detail — from high-quality insulation to perfect waterproofing — for renovation and new build.
Installation, repair and maintenanceComfort, durability and protection.
Does your flat roof need renovating, or are you looking for a reliable solution for a new build? We supply durable, energy-efficient flat roof systems.
With skilled craftsmen and high-quality materials, your flat roof is built to last — resistant to all weather conditions.
Renovation and new build
Insulation and waterproofing in one system
Room for installations or a terrace
Flat roofs · Flat roof
Flat roofInsulation and waterproofing for a long service life.
Does your flat roof need renovating, or are you looking for a reliable solution for a new build? We supply durable, energy-efficient flat roof systems and take care of every detail — from high-quality insulation to perfect waterproofing.
Kessel-Lo · apartment building with flat roofs
Insulation and waterproofing for a long service life.
Insulation
PIR · λ 0.022–0.025 at minimum thickness
Installation, repair and maintenance
Modern materials for reliable waterproofing
Room for installations, a roof garden or a terrace
New roof covering and finish
Renovation or new build: new roof covering, finish and insulation, also under a roof garden or terrace.
Renovation
New build
Roof garden or terrace
The build-upFrom roof deck to roof covering.
A flat roof works as one system: every layer has its own job.
01Roof deck
Checked for stability and flatness
02Vapour barrier
Stops moisture from inside
03Insulation
PIR boards for maximum insulation at minimum thickness
04Roof covering
Waterproof finish with neat upstands and roof edge profiles
DetailsWater must be able to drain away.
✓
Falls and drainage designed so that no water is left standing.
✓
Upstands, roof edges and penetrations finished watertight.
✓
Load checked in advance for a roof garden, terrace or technical installations.
✓
Insulation without thermal bridges at the roof edge.
ProjectsFlat roofs we built.
From an apartment building in Kessel-Lo to a renovation with a flat roof and PIR insulation in Lier.
A flat roof offers room for technical installations, a roof garden or a terrace.
Flat roof with terraceFlat roofs on a large scaleKessel-Lo
Grants and financing
We check what you are entitled to.
Since 2026, roof insulation in Flanders only qualifies for Mijn VerbouwPremie in income categories 3 and 4. We check your situation, help with the application and, if you wish, arrange a renovation loan through KBC.
Questions about flat roofsWhat our clients ask us.
Repair or renew?
We assess that during the site visit: the condition of the roof covering, the insulation and the roof deck determines whether a repair is enough or a full renovation is better.
Can I have a terrace or roof garden on my flat roof?
Yes, provided the roof deck can take the load and the build-up is designed for it.
Which insulation do you use?
PIR boards: maximum insulation at minimum thickness (λ 0.022–0.025).
Can I get a grant for roof insulation?
In Flanders, since 2026 roof insulation only qualifies for the Mijn VerbouwPremie grant in income categories 3 and 4. We review your situation and help with the application.
Free site visit · quote within 48 hoursReady for a new flat roof?
Our specialist inspects your roof and sends you a tailored, no-obligation quote within 48 hours.