Roof moss removal
in Lasne
On the building stock of Lasne — large detached villas, renovated cottages, outbuildings and stables, extensive roofs — roof moss removal calls for an adapted method. We remove moss and lichen without damaging the tile, then apply a water-repellent treatment that stops water sitting and moss coming back.
BeforeAfter
The context in Lasne
Why here in particular
Very scattered housing between meadows, hedges and woodland: Lasne is among the greenest municipalities in Walloon Brabant, with large isolated properties. In practice, those isolated properties add up a lot of square metres of roof plus outbuildings that get forgotten until the first leak.
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 Lasne 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 Lasne
The questions we get asked most often before this kind of job.
Do you work in winter?
Cleaning yes, the water-repellent treatment no below 5 °C. We push the second phase back rather than botch it.
Does the cleaning damage the tiles?
Not at low pressure. The risk comes from high-pressure lances held too close: they strip the engobe and leave the tile even more porous. We work at a distance and with the pressure kept in check.
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 come out to Lasne with no extra call-out charge?
Yes. Lasne 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 Lasne
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
A quote for roof moss removal in Lasne?
On-site visit, detailed costing within 48 working hours, with no obligation on your part.