Roof moss removal
in Overijse
On the building stock of Overijse — post-war villas on sloping ground, old greenhouses, complex roofs with multiple pitches — roof moss removal calls for an adapted method. We remove the moss and lichen without damaging the tile, then apply a water-repellent treatment that stops water sitting and the moss coming back.
BeforeAfter
The context in Overijse
Why here in particular
The tree cover keeps the roofs damp and the gutters fill up twice a year rather than once. So we adapt the equipment and the method rather than running a standard protocol.
In Belgium a north-facing slope takes moss within three to five years. Moss holds water, freezes in winter, lifts the tiles and eventually lets damp into the roof timbers.
- Quote
- Priced after a site visit, free of charge and with no obligation.
- Duration
- 1 to 2 days depending on the area and the access.
- Call-out
- Included in Overijse and neighbouring municipalities
How it runs
How the job runs
The same protocol everywhere, adapted to what the visit reveals on site. Nothing is decided from the pavement.
- Tarpaulins over the surroundings and the planting
- Low-pressure cleaning matched to the substrate
- Fungicide and algicide treatment
- Clearing the gutters and downpipes
- Water-repellent treatment with a beading effect
- Before / after photos handed over with the invoice
Inspection
Condition of the tiles, the ridge tiles, the flashings and the gutters. We photograph everything and show it to you.
Low-pressure cleaning
No 200-bar lance on a porous tile: low pressure, and a rotary brush where it is needed.
Anti-moss treatment
Fungicide applied over the whole surface, contact time respected.
Rinsing and clearing away
Full rinse, gutters cleared, waste taken away.
Water-repellent treatment
A colourless or coloured impregnation that beads water off and slows recolonisation.
Frequently asked questions
Roof moss removal in Overijse
The questions we get asked most often before this kind of job.
How long does the water-repellent treatment last?
Between 8 and 10 years on a tile in good condition, less on a tile that is already very porous. We tell you beforehand, not afterwards.
Do you need to be there during the job?
No. Access to an outside tap is enough. You get the photos at the end of the day.
Can a natural slate roof be treated?
Yes, but without a film-forming water-repellent treatment: slate has to stay breathable. We match the product to the material.
Do you come out to Overijse with no extra call-out charge?
Yes. Overijse is one of our 17 municipalities: the call-out is included in the quote, not added at the bottom of the invoice.
Other work in Overijse
While we are on site
Combining two jobs in one visit brings the invoice down. We suggest it when it makes sense, never to pad the quote.
Roof moss removal in the neighbouring municipalities
All our work in Overijse · Everything about roof moss removal
Your job in Overijse
On-site visit, detailed costing within 48 working hours, with no obligation on your part.