The forty-year-old roof
The original tiles have gone porous and the roofer suggests a full re-roof. It's the moment to change colour, and the owners compare anthracite and brown on their own house before signing.
Change your roof colour with AI
A photo of your house re-roofed in flat anthracite tiles, then in chocolate brown tiles, with the facade left alone. To choose before the roofer's quote. Workflow visible here, no account needed.
Real workflow: a house with an orange tile roof seen from the garden, then the same house with flat anthracite tiles and with chocolate brown tiles. Chimney, roof window and grey shutters stay in place; on the anthracite render, the sky turned plain blue.
At a glance
- You provide
- 1 photo · a text or a brief
- What the workflow produces
- 2 images in 4:3
- Canvas structure
- 6 nodes wired by 4 connections
- Models wired in
- Flux Kontext
- Cost of one full run
- about 12 credits, roughly $0.14
- Account
- The demo is visible without an account; generating requires a free account, trial credits included
Re-roofing changes the biggest visible surface of a house in one go, for decades. The colour usually gets chosen from a single tile on the roofer's table, which tells you very little about a whole roof seen from the garden. This workflow starts from a photo of YOUR house and shows the roof redone in two colours: anthracite and chocolate brown.
The hard part is getting a real break in colour. An editing model likes to stay close to the original, and a brown asked for over orange tiles comes back as dark orange. The prompt compares the new shade with the old one and keeps the roof shape, the chimney and the roof window. Flux Kontext swaps the tiles without touching the render or the shutters.
For panels on the new roof, chain it with the solar panel visualizer; for the walls, with the facade makeover. Both roofs cost twelve credits.
Actual renders from the demo
These are the files of the workflow above, exactly as the models produced them, unretouched. The starting point is shown when there is one.
Starting point
Render
Who it is for
Homeowners re-roofing, roofers attaching a picture to the quote, buyers of a house that needs work.
Which files to provide
A photo of the house with the whole roof slope in view, the tile type and the colour you want.
How it works
- 1
Photograph the roof
From the garden or the street, with the whole slope and some of the facade in view. An overcast sky gives truer colours.
- 2
Name tile and colour
Flat tiles, pantiles, slate, and the colour: anthracite, brown, weathered red. Add matte or satin.
- 3
Compare with the old roof
"Clearly darker than the old tiles": that line made the difference in the demo. Without it, the brown stayed orange.
- 4
Check sky and details
Look at the chimney, the roof window and the sky on the render. If something has shifted, run it again before showing anyone.
Variations and use cases
The same canvas, tuned for different needs: each variation is two or three lines of prompt away.
The roofer and the quote
The roofer photographs the house during the visit and attaches two renders of the new roof to the quote. The customer chooses a tile by seeing the whole roof, not a sample.
The house that looks dated
Bright orange tiles, beige render, grey shutters: the whole thing says 1990s. An anthracite roof shows whether one change is enough to bring the house up to date.
The estate with colour rules
The estate rules require tiles within a range of browns. The owners render the approved shade to see whether it suits the facade before submitting their plans.
Before going solar
Some owners re-roof in anthracite before fitting black panels, for a uniform look. The render shows the roof on its own, before adding the panels in a second node.
The fixer-upper
A buyer views a house with a tired roof. They render the roof redone to picture the place, and to talk it through with a roofer before making an offer on the house.
Common mistakes
A colour too close to the old one
Without a comparison, brown tiles asked for over orange ones gave a barely darker orange on our first try. Write "clearly darker than the old tiles".
Not checking the render
On the anthracite demo, the cloudy sky turned blue and a dark patch appeared near the chimney. Look over the whole picture before showing it to the roofer.
Forgetting the roof window
If you don't name it, the model may tile right over it. List chimney, roof window, aerial and ridge.
Choosing without checking the rules
Roof colour and material are often regulated locally. The picture helps you choose within what's allowed, not get around it.
Recommended models
Flux Kontext
Nano Banana 2.1
GPT Image 2.5 SunburstFrequently asked questions
Does the house change?
The walls, the shutters and the garden stay as in the photo. On the anthracite render, though, the cloudy sky turned blue: a slip by the model, worth re-running.
Does it work for switching to slate?
Yes: ask for dark grey natural slates instead of tiles. The pitch and shape of the roof stay the same.
Can I pick any colour I like?
Not always. Many areas restrict roof colours and materials, especially in conservation areas. Check with your council before you choose.
How much do the two roofs cost?
Twelve credits, six per render on Flux Kontext. A third colour on the same photo costs six more.
Why Flux Kontext?
Because it changes the material of one area and keeps the rest: shutters, render and garden stay as in the photo. It needs a prompt that insists on the colour gap, otherwise it stays close to the original.
Flat tiles or curved tiles?
Both work: write the type you want. In the demo, the anthracite roof has flat tiles and the brown one keeps a profile close to the original tiles.
Is the render true to the real colour?
It's an approximation. A tile looks different in different light and weathers over time. Ask the roofer for an address where the same tile is already fitted.
What output format?
The format of your photo, here 4:3. A house seen from the garden is shot in landscape.
Change your roof colour with AI
Use this workflowFree account, no card required. The workflow opens pre-filled in your canvas.