Guides
What we end up explaining on site anyway, written down once and for all. No jargon, no miracle promises.
Why moss always comes back on Belgian roofs
Maritime climate, north-facing pitches, nearby trees: the three reasons a roof turns green again, and what really slows it down.
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Roof water repellent: what it does, what it does not do
A water-repellent treatment is not waterproofing. What you can expect from an impregnation, how long it really lasts, and the cases where it is of no use.
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Gutters: what time of year to have them cleared
After the leaves fall, before the winter rain. The maintenance calendar that keeps the facade from being soaked come spring.
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Asbestos in the roof: how to tell and what to do
Recognising an asbestos fibre cement sheet, what Belgian law allows, and why removing it without breaking it changes everything.
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A ceiling leak never comes from straight above
How water travels through roof timbers, why the stain sits off to one side, and the search method that avoids opening up at random.
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Flat roof: what makes it last twenty years or five
The number of layers, the upstands, the fall and the roof outlet. The four points that separate durable waterproofing from permanent repair.
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Insulating your roof without trapping damp
Continuous vapour barrier, ventilated air gap, useful thicknesses: why badly fitted roof insulation damages the roof timbers it covers.
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Brick facade and driving rain: when a water-repellent treatment is the right answer
Telling an infiltration through the facade apart from rising damp, and choosing between impregnation, repointing and render.
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The signs that give away roof timbers under attack
Frass, exit holes, timber that gives: what we look at during a diagnosis, and what counts as urgent.
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Reading a roofing quote without getting taken in
Underlay, scaffolding, waste removal, VAT: the lines that must appear and the wordings that should put you on alert.
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One phone call is enough to know whether it is urgent or can wait until spring. We will tell you straight.