> ## Documentation Index
> Fetch the complete documentation index at: https://docs.leads.roofera.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Subject lines

> Battle‑tested subject line patterns to A/B test across audiences.

<Info>Keep subjects short (\~35 characters), natural case, no emojis, no sales words. The goal is to get the recipient to open the email — invoke curiosity.</Info>

## Patterns to test

* Curiosity: ``firstName`, odd question` | `quick roof note` | `noticed something at `street``
* Personalized: ``firstName`, quick question` | `Question about `property``
* Short: `roof plan?` | `winter prep` | \`\`firstName`, quick one`
* Connection: `Found you via `source`` | `Working with managers in `city``
* Useful: `reduce roof costs` | `prevent leak season`

<Tip>Curiosity-driven subject lines tend to produce the highest open rates. Lead with something that makes the recipient want to find out more.</Tip>

## Safety checks

* Avoid ALL CAPS, punctuation spam, and words like "free/discount/sale"
* Do not use links or tracking in Email 1
* Test one variable at a time and let each run to 50–100 sends

## Length & personalization

* Aim for **\~35 characters** so it fits on mobile and stays scannable
* Use light tokens where available: `firstName`, `street`, `company`, `city`
* Focus on an outcome or pain (e.g., leak prevention, winter prep)