New in the marketplace Kantwerk. The metal roofer that folds in the workshop and seams on the roof
Kantwerk is a complete template for metal roofing and sheet metal businesses with 21 pages, six services from standing seam roofs to maintenance, four projects with fully written case studies, materials, workshop, process, about us and contact. On the home page a seam cross-section folds into a double-lock standing seam in four steps. Add five price calculators, a roof pitch slider, a before and after slider, a sheet metal folder you can swing, a material picker, a patina slider and a service area map with straight-line distances.
For your own websites and client projects. Customize the project folder in your AI tool. Want us to handle the setup?
A roof that is made in the workshop
Read the full story
Most roofing websites show scaffolding, a few keywords and a phone number. Anyone planning a metal roof wants to know whether it suits their roof pitch, what a square metre of titanium zinc costs and how long the family will live under a building site.
Kantwerk answers exactly that. The home page folds two trays in cross-section into a double-lock standing seam, a slider checks the pitch, five calculators name guide prices by area, length and metal, and in the workshop a sheet metal folder bends as soon as someone pulls the slider. That way the business shows its craft before anyone calls.
Behind it stands a whole business with six services, four case studies including variations and its own mistakes, a workshop, a materials comparison, a weekly schedule and a storm line. What is missing are your own photos and prices, and every business adds those with its AI.
- Pages
- 21
- Calculators
- 6
- Case studies
- 4
- Requests to third-party servers
- 0
Scroll through the homepage
The Kantwerk homepage travels as you scroll. Each stop explains why a section is built the way it is.
- 01
The double-lock standing seam
On the home page two trays fold in cross-section into a double-lock standing seam in four steps, calculated as a real fold in millimetres. A click on a step pauses it.
- 02
The seam lines
Vertical lines like the seams of a standing seam roof run across anthracite zones and draw themselves from the top as they appear. Red stays the one signal colour.
- 03
The roof shape picker
Six roof shapes from gable roof to metal façade, each as a drawn house with covering, guide price and the matching service.
- 04
The roof pitch slider
Set the roof pitch from 0 to 45 degrees, and the seam types that work tick themselves off. Below 3 degrees the page names the limit of seamed metal.
- 05
The sheet metal folder
A section through the folding machine in the workshop. The folding beam swings up to 135 degrees with a slider, and three buttons jump to 45, 90 and 135 degrees.
- 06
The service area map
Ten places around Meschede to scale, with rings every ten kilometres. Point at a place to see the straight-line distance to the workshop.
Not one page. All of them
You are not buying a homepage full of promises, you are buying a complete website. Every subpage is fully designed and written.
The seam, drawn to scale
Anyone planning a metal roof first asks whether it suits their own roof and what it costs. The standing seam page shows the seam in section, checks the roof pitch and calculates the guide price by metal.
- The section to scale
The opening shows trays with three double-lock seams on a separation layer and full boarding, labelled with tray width, seam height and clip spacing. The geometry comes from the same file as the seam on the home page.
- The pitch decides
A slider from 0 to 45 degrees ticks off which seam works, double-lock seam with sealing tape from 3 degrees, without from 7 degrees and angled seam from 25 degrees. For snowy areas the note below names 35 degrees.
- The price by metal
Choose steel, aluminium, titanium zinc or copper and drag the roof area from 40 to 400 square metres. The calculator names a guide value from, including VAT and excluding scaffolding.
- 3
- Degrees minimum pitch
- 4
- Metals in the calculator
- 12
- Metres of tray without a cross joint
Make Kantwerk your next project
Buy the template and rebuild it yourself, or let us finish it for you together.
The finished website, its knowledge and seven skills in one ZIP
ai-website-template-kantwerk.zip Instant download An agency would bill four figures for a website like this.
- The complete website, every subpage fully designed and written
- Guideline and knowledge folder, so your AI understands the system
- Seven skills that maintain and grow the site via chat
- Docs and skills in English or German, your choice
You rebuild the project folder yourself, with a code editor and an AI tool like Claude Code. The documentation walks you through it.
Secure payment via Stripe, the ZIP arrives right after Made in Germany, built by web designersRather have it done for you? With the AI Website Service for €799 we build in your content and take you live. ai-website.com talks it through with you in the call.
Who Kantwerk is built for
A template gets good by making choices. Kantwerk is tailored to one niche, and honest about where it does not fit.
Built for
- Metal roofing and sheet metal businesses with standing seam roofs, gutters, flashings and metal façades
- Roofing contractors with industrial roofs for business and farming, with asbestos removal, maintenance and a storm service
- Agencies that deliver sites for roofing and building envelope trades repeatedly and predictably
Not meant for
- Roofers who mainly lay clay tiles and slate, because Kantwerk tells the story of metal from the seam to the folder
- Plumbers in the sense of plumbing and heating, Klarlauf from the same category fits them
- Electrical, air conditioning and painting businesses, Kupferrode, Luvhagen and Kalkblau from the same category fit them
A different industry? Browse all templates
At home on the phone
More than half of all visitors arrive on a phone, in emergencies almost all of them. Kantwerk is built for that, not squeezed into it.
From ZIP to live website
Three steps. You need Node.js, an editor and one hour.
More than a pretty surface
Kantwerk ships with its knowledge and the seven skills, so your AI understands the website instead of guessing it apart.
Quick answers
As soon as you enter them. The guide prices live in src/data/site.ts under leistungen and material, the figures of the five price calculators in rechner in src/pages/leistungen/[slug].astro, and the price bars of the overview in src/pages/leistungen/index.astro. The systemwissen skill lists every place that has to match, and your AI enters your values in one go.
Yes, with your AI. The six services live in src/data/site.ts, each service page adds tables by slug from its page template, and the home page spreads them over six fixed tiles. The template-setup skill walks through every place, including the new grid of tiles.
A scaled cross-section in which two trays are folded into a double-lock standing seam in four steps, from the upstand formed in the workshop to the second fold through 180 degrees. The geometry is calculated in millimetres by src/lib/falz.ts. A click on a step pauses it, and with reduced motion the first step stays in place.
Only with certified competence under TRGS 519, the German technical rule for asbestos, and from 19 December 2026 with the approval under section 11a(4a) of the German Hazardous Substances Ordinance. The page names the certified competence and the notification to the regional authority, and the knowledge files point to the approval. If either is missing, your AI removes the statements, and a search for TRGS 519 in src shows every place.
Because five years on building work is the statutory period under section 634a of the German Civil Code, not an extra promise. Advertising a statutory right as an advantage breaches German competition law. You can add a real guarantee with your own terms.
Kantwerk tells the story of metal, with seam, folder, metals and patina, and the services overview says plainly that the business lays neither tiles nor slate. A business with metal and tiles adds a service of its own with its AI and adjusts that answer.
Yes, and the knowledge files record which. CLAUDE.md lists every detail on seam, aluminium, gutter fall, angled seam, clip spacing, façade build-up and weight that a sheet metal worker would recalculate. Service lives of 80 and 100 years appear as manufacturer figures, next to the 50 years of the German federal valuation table. The page names the insulation duty under the German building modernisation act, in force since 29 July 2026.
No. Company, names, prices, projects, key figures and testimonials are invented and marked as examples on the page. All names have been checked against phone books and the commercial register of the region, and both phone numbers come from a block that the German Federal Network Agency keeps free for media use. There is deliberately no rating score.
The 46 photos come from Pexels and may be used commercially. They show no real business and no real sites, only motifs without a recognisable face appear next to names, and brands and house numbers have been retouched. Your own photos belong in the team and project sections, and LIZENZEN.md explains what applies.
As placeholder pages with instructions, not as finished texts. The legal notice lists the mandatory details of a roofing and sheet metal business and the image credits, the privacy page describes what the website does technically. We deliberately do not supply legal texts, because they differ for every business.
No. Font and photos live in the project, the service area map, house drawings and sections are original drawings, and there are no tracking pixels and no videos. Consent is prepared in case you add an analytics service later.
Yes. Every heading, every text and every case study is there without a script, questions and tabs are open, and every calculator shows a finished starting value.
The German original uses the formal Sie throughout, in form messages, the consent dialogue and the case studies too. The English edition addresses visitors as you, in a plain and factual tone.
Anywhere that serves static files. Astro builds the site into a folder of finished HTML that runs without a database or server script. The enquiry form checks the input and sends nothing yet, it needs a recipient before going live.
Yes. Pay once, yours forever, for your own projects and client projects. You get the complete source code without a watermark.
Yes. In the English package the whole website is in English, with English knowledge files and English skills.
No. You tell your AI in the project folder what should change, and it finds the place through CLAUDE.md and the seven skills. If you want to work by hand, most of the content sits in src/data/site.ts.
Ready for Kantwerk?
The complete template is ready as a ZIP.
- Ready in hours. Download the ZIP, run npm install, and the finished website runs locally for you.
- Yours forever. Pay once, and website, knowledge and skills belong entirely to you, with no running costs.
- Adjustable via chat. Your AI turns Kantwerk into your brand, page by page.

