A hot week can raise sick leave and requires employers to assess and address workplace risks. Lichen is designed to route agreed measures by site and keep a traceable record of the response. Starting with heat.
Sick days you pay for, and a duty you must document. Both land unevenly across sites, shifts and roles — and often only become visible once the sick notes arrive. By then the hot week is over, and there is nothing left to prove.
“There is no regulation deficit — there is an implementation deficit.”
DGB · German Trade Union Confederation · June 2026The rules exist. The templates exist. What is missing is execution inside the company — and proof of it. That is exactly what Lichen does.
Your absence data against your site temperatures. Which shifts lose the most, what it costs you, and where the 26, 30 and 35 °C duties bite.
Every site over threshold gets its measure, a named owner and a deadline. The templates are free on the BMAS site. Getting them done on the day it matters is the hard part. That part is ours.
Each warning, assignment and response is recorded with site, responsibility, timestamp and status. This creates a traceable history that supports the employer's documentation; it does not certify legal compliance.
Illustrative preview with example data — not real customer data. Concrete effect figures are established during the pilots.
Follow the path. At each step you see exactly what it costs you in effort — and what you get back. The line ends where you want to be: measures running, proof writing itself.
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The DWD trend is unambiguous: temperatures are rising nationwide and hot days keep increasing — the next warning is a question of when, not if. Build the baseline now and you enter summer 2027 with a finished plan and defensible numbers, instead of starting from zero when the warning hits.
Excel can collect measures and confirmations. What remains manual is routing the right action to each site, reminding owners and keeping a consistent audit trail. Lichen is designed to connect those steps without replacing professional judgement.
The underlying work already exists in emails, notices and follow-up calls. Lichen aims to reduce that coordination effort by linking one warning, one assigned task and one status record. The pilot will test how much effort this actually saves.
The pilot is designed around data minimisation: aggregated absence figures can be used without diagnoses or employee profiles. Retention, deletion, access and contractual safeguards are agreed before data is provided.
And they stay in charge. Your occupational-safety professionals decide what applies; Lichen supports coordination and documentation across sites. It is a tool for them, not a replacement.
The ASR thresholds start at 26 °C, so September counts too. More to the point, this season is your run-up to the next one: start now and you head into summer 2027 with a finished plan and defensible numbers. The DWD leaves no doubt it's coming.
For centuries, lichen has been how we read the air. Now Lichen reads the conditions your people work in.
Tell us in one minute where you stand. Within 24 hours you'll get an answer from the founder — with a proposed time for the first call, not a newsletter.
“You'll talk to me directly, not to a sales sequence. And if Lichen isn't right for your operation, I'll tell you that in the first call.”
Kseniia Pavliuchik · Founder & CPOWe'll get back to you within 24 hours with a proposed time for the first call. Tip: an absence export (CSV) speeds up your baseline.
Lichen is a software venture in formation. So you can judge every claim on this page, here is what is built, what is proposed, what is illustration, and what is still being proven.