Roof waterproofing is not patched: water gets in at an upstand or an outlet and comes out somewhere else. We strip the old protection, re-screed the falls and lay a two-layer bitumen waterproofing, upstands included, before a twenty-four-hour flood test.
The protection can become a floor: terracotta tiles, pedestal slabs, or a reflective resin that lowers the heat under the slab in summer.
What the job covers
- Stripping the old protection and re-screeding the falls
- Primer and two-layer bitumen waterproofing
- Upstands in alu-faced felt with flashing strips
- A twenty-four-hour flood test
- Protection: tiles, pedestal slabs or reflective resin
The steps and how long they take
The typical schedule for this job, worked out like a real project’s: rooms move forward in parallel between the opening and the handover.
| Room | Step | Starts | Takes | Indicative length: 8 working days, Saturday to Thursday. |
|---|---|---|---|---|
| Site | Site protection | day 1 | 1 d | |
| Roof terrace | Strip old protection | day 2 | 1 d | |
| Roof terrace | Waterproofing | day 3 | 2 d | |
| Roof terrace | Terrace tiling | day 5 | 3 d | |
| Site | Cleaning and handover | day 8 | 1 d |
What is included
The design
Survey, plan, 3D views and choice of materials with the interior designer.
The quote
Itemised line by line with product references, fixed once signed.
The works
Every team, materials delivered from the depot, site protection and cleaning.
The handover
The final walk-round, snags cleared and the report signed.
The warranty
Completion, equipment and waterproofing, with someone who answers.
The materials come off our shelves
Every product on the quote is a catalogue product, delivered from our depots and reserved from a single lot for tiles and faïence.
Questions about renovation
When should waterproofing be redone?
Ideally in spring or early autumn, on a dry deck, and before leaks damage the ceiling below.
What warranty on the waterproofing?
Ten years on waterproofing laid by Qarmoud Atelier, provided it is not pierced afterwards.
Can it be insulated at the same time?
Yes: extruded polystyrene boards laid on the waterproofing, under a heavy protection, keep the summer heat out of the slab.
Our other services
Flats
Two to five rooms, redone room by room without you having to coordinate the trades.
- Indicative price per m²
- 18 000 – 45 000 DA / m²indicative
- Typical job
- 14 working days
Villas
A whole house, from the roof terrace to the floors, with teams moving forward in parallel.
- Indicative price per m²
- 22 000 – 60 000 DA / m²indicative
- Typical job
- 14 working days
Kitchens
A kitchen designed around how you work, fitted in two weeks with its services.
- Indicative price per m²
- 55 000 – 130 000 DA / m²indicative
- Typical job
- 12 working days
Bathrooms
Walk-in shower, wall-hung toilet, zellige or faïence: a watertight bathroom made to last.
- Indicative price per m²
- 60 000 – 140 000 DA / m²indicative
- Typical job
- 14 working days
Shops and offices
A unit fitted out to open on the date announced, with works that do not disturb the neighbours.
- Indicative price per m²
- 15 000 – 40 000 DA / m²indicative
- Typical job
- 14 working days