- Better air coverage starts with a continuous, well-aligned main duct route before any branches.
- Balanced branching spreads airflow to more destination areas than a single long extension.
- Turns and transitions must connect correctly on both sides or coverage stops at the corner.
- Test after every change so you always know which adjustment improved or broke coverage.
- Expand in stages to keep a growing HVAC layout easy to troubleshoot.
How Air Coverage Works in Ductworks
Ductworks is a Roblox HVAC sandbox built around air ducts, air physics, and piping. Air coverage means how much of your build area receives usable airflow from your duct network. Air can only follow a connected route: every section must meet the next, face the correct direction, and pass through transitions cleanly. Coverage improves when the main route is solid first, then extended with carefully placed branches.
Build the main path, verify it works, and only then add branches. Untested branches are the most common reason coverage stops spreading.
| Coverage Factor | What It Controls | Common Mistake |
|---|---|---|
| Route continuity | Whether air travels at all | Gaps between duct sections |
| Duct direction | Which way air flows | A section facing the wrong way |
| Turns and transitions | Direction changes | Corners misaligned on one side |
| Branch structure | Distribution to multiple areas | Adding several untested branches at once |
| Testing routine | Confidence in results | Changing many sections before a test |
Coverage Layout Strategies Compared
Different layouts produce very different coverage results. Pick the structure that matches your goal before you start placing ductwork.
Straight Trunk
- Simplest to inspect
- Best first test for new players
- Covers one corridor or room line
Balanced Branches
- Even distribution
- Splits the route to several destinations
- Requires a verified main path first
Compact Loop
- Readable turns
- Good for tight spaces
- Every corner must be tested individually
| Layout Type | Coverage Reach | Difficulty | Best For |
|---|---|---|---|
| Straight trunk | Single path, one destination | Easy | Learning placement basics |
| Multi-turn route | Same reach, more corners to verify | Medium | Working around obstacles |
| Single branch | Two destination areas | Medium | First expansion step |
| Balanced branches | Multiple areas, even spread | Hard | Larger HVAC designs |
A large, complex network built without testing is very hard to debug. If coverage fails, you will not know which section caused it.
Step-by-Step: Maximizing Air Coverage
Follow this workflow to expand coverage without losing track of what works. Each stage ends with a test so problems stay isolated.
Plan Sources and Destinations
Decide where air starts and every area that should receive airflow. Mark the main route and branch points before placing anything, and reserve space for turns.
Build and Verify the Main Path
Place a short, straight duct line from the source. Confirm the sections meet, face the correct direction, and pass an airflow test before extending further.
Add and Test Each Turn
Extend the route one corner at a time. Inspect both sides of every transition, then rerun the test so a misaligned corner never gets buried under new construction.
Branch One at a Time
Once the main route works, add one branch, test, and compare coverage at the destination. Repeat for each new area instead of adding several branches at once.
Compare and Rebalance
Test whether destinations receive comparable airflow. If one branch dominates, adjust its structure or reroute before adding more sections.
Follow the route from source to destination on every test. When a result is wrong, undo or adjust the most recent structural change first.
Coverage Experiments to Run
These repeatable experiments, adapted from the wiki's experiment set, show exactly how design choices change coverage. Change one variable per round.
| Experiment | Setup | What You Learn |
|---|---|---|
| Straight vs. turned route | Two similar-length routes, one with extra bends | How turns affect airflow behavior |
| Single vs. balanced branches | One single-destination design vs. a split design | How branch structure changes distribution |
| Incremental expansion | Add one section or branch per test round | When a layout starts behaving differently |
In Ductworks multiplayer, assign a layout planner, a builder, and a tester. One player can rebuild a section while another observes and records the coverage difference.
Air Coverage Milestones:
- Verify a working straight trunk route
- Add and test the first turn
- Confirm one branch reaches a second area
- Balance two branches for even coverage
- Retest the full system after every expansion
Troubleshooting Weak Coverage
When air fails to reach an area, check these issues in order of likelihood. Most coverage problems trace back to a connection or direction error introduced during the latest change.
| Symptom | Likely Cause | Fix |
|---|---|---|
| No airflow anywhere | Disconnected source or reversed section | Inspect the source and first section, then retest |
| Airflow stops mid-route | Gap or misaligned corner | Check the transition at the stopping point |
| One branch gets nothing | Branch added without testing | Isolate the branch, fix direction or connection |
| Coverage drops after changes | Multiple sections changed at once | Undo the latest change and test step by step |
Adjust the affected section instead of reconstructing the whole system. Small, targeted fixes keep working sections intact.
FAQ
Q: How do I get better air coverage in Ductworks?
Start with a verified straight main route, add turns one at a time with testing, then branch to new areas individually. Balanced branch structures spread airflow more evenly than a single extended branch.
Q: Why does airflow stop at a corner?
The transition is misaligned on one side. Inspect both the incoming and outgoing sections at the corner, correct the alignment or direction, and run the test again before extending the route.
Q: Should I add multiple branches at once to cover more area?
No. Add one branch per test round. If several untested branches are added together and coverage fails, you cannot tell which connection caused the problem.
Q: Does multiplayer help with coverage testing?
Yes. Dividing roles into planner, builder, and tester lets one player modify a section while another observes and documents how coverage changes, which speeds up troubleshooting.