Read the guide: Can construction vibration damage my house?
How to check a reading against the limits
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Step 1: Get a peak particle velocity (PPV) number. It can come from a professional monitoring report, the contractor, or the PDF report from our construction vibration monitor.
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Step 2: Type the number into the box and make sure the unit matches your number: mm/s or in/s.
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Step 3: If you know the main frequency in Hz (from a monitoring report or the monitor's event table), enter it. Without it, the DIN 4150-3 and USBM values use their strictest low-frequency numbers.
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Step 4: See where it falls: how people are likely to feel it, and how it compares with the damage guidelines.
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Step 5: Find the row for your kind of building. Old, fragile and historic buildings have lower values than modern homes.
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Step 6: Decide whether the vibration was a one-off event (transient, like a single blast) or went on for a while (continuous, like pile driving or a vibratory roller). Pick it under Type of vibration in the tool, or use the matching column in the tables below.
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Step 7: If your reading is near or above a guideline, talk to the contractor and think about hiring a professional vibration monitoring company.
Construction vibration limits for residential buildings aren’t one number. They depend on the type of building, whether the vibration is a single jolt or goes on for hours, and sometimes its frequency. The tables below come from three widely used sources. They’re guidelines engineers use to set project limits, not laws.
What peak particle velocity (PPV) means
PPV is the fastest speed at which the ground or a building moves during a vibration event. In the US it’s given in inches per second (in/s), and elsewhere in millimeters per second (mm/s).
- To convert: 1 in/s = 25.4 mm/s. So 0.3 in/s × 25.4 = 7.6 mm/s, and 5 mm/s ÷ 25.4 = 0.2 in/s.
- Why velocity: Caltrans calls PPV the most appropriate measure for judging the potential for building damage.
- Phone estimates: our phone tools estimate PPV as RMS velocity × √2. That’s exact for a smooth, steady vibration and can read low for sharp single jolts. Professional seismographs record the true peak on each of three axes, which is what the guidelines use.
How people feel vibration
Caltrans (2020) human response guidelines, PPV:
| How people feel it | Transient, in/s (mm/s) | Continuous or frequent, in/s (mm/s) |
|---|---|---|
| Barely perceptible | 0.04 (1.0) | 0.01 (0.25) |
| Distinctly perceptible | 0.25 (6.4) | 0.04 (1.0) |
| Strongly perceptible | 0.9 (22.9) | 0.10 (2.5) |
| Severe | 2.0 (50.8) | 0.4 (10.2) |
People notice vibration long before a building is at risk, and steady vibration bothers people at much lower levels than a single jolt. Our people and buildings scale uses the continuous column.
Damage guidelines by building type (Caltrans)
Caltrans (2020) guideline vibration damage potential, maximum PPV:
| Building type | Transient, in/s (mm/s) | Continuous or frequent, in/s (mm/s) |
|---|---|---|
| Extremely fragile historic buildings, ruins, ancient monuments | 0.12 (3.0) | 0.08 (2.0) |
| Fragile buildings | 0.2 (5.1) | 0.1 (2.5) |
| Historic and some old buildings | 0.5 (12.7) | 0.25 (6.4) |
| Older residential structures | 0.5 (12.7) | 0.3 (7.6) |
| New residential structures | 1.0 (25.4) | 0.5 (12.7) |
| Modern industrial and commercial buildings | 2.0 (50.8) | 0.5 (12.7) |
Transient means a single isolated event, such as a blast. Continuous or frequent means sources like impact and vibratory pile drivers and vibratory compaction equipment.
DIN 4150-3 guideline values
The German standard DIN 4150-3 is widely used in Europe. Short-term vibration, PPV in mm/s:
| Building type | Foundation, 1–10 Hz | Foundation, 10–50 Hz | Foundation, 50–100 Hz | Top floor, horizontal |
|---|---|---|---|---|
| Commercial and industrial | 20 | 20–40 | 40–50 | 40 |
| Dwellings | 5 | 5–15 | 15–20 | 15 |
| Sensitive or historic | 3 | 3–8 | 8–10 | 8 |
For long-term (continuous) vibration, the top-floor horizontal values are 10, 5 and 2.5 mm/s for the three building types. Note that slower vibration gets stricter values.
Blasting guidelines (USBM RI 8507)
The US Bureau of Mines report RI 8507 (Siskind and others, 1980) studied homes near surface mine blasting. Simplified:
| Blast frequency | Plaster on wood lath | Drywall |
|---|---|---|
| Below 40 Hz | 0.5 in/s (12.7 mm/s) | 0.75 in/s (19 mm/s) |
| 40 Hz and above | 2.0 in/s (51 mm/s) | 2.0 in/s (51 mm/s) |
The full criteria curve also has a displacement limit at very low frequencies, so check the original chart if the vibration is very slow.
Worked examples
A roller next door. Your phone log shows 2.0 mm/s (0.08 in/s) during vibratory compaction, and your house was built in the 1960s. That’s between distinctly and strongly perceptible, so you’ll clearly feel it. But it’s about a quarter of the Caltrans guideline for older homes (0.3 in/s): annoying, not in the damage range.
A single blast. A monitoring report shows 0.6 in/s (15.2 mm/s) at 25 Hz, and you live in an older house with drywall. That’s below the USBM drywall value (0.75 in/s), but above the Caltrans transient value for older homes (0.5 in/s) and the DIN 4150-3 value for dwellings. When guidelines disagree like this, ask an engineer.
Where these numbers come from
- Caltrans, Transportation and Construction Vibration Guidance Manual (April 2020).
- DIN 4150-3, Vibrations in buildings, Part 3: Effects on structures.
- US Bureau of Mines RI 8507, Structure Response and Damage Produced by Ground Vibration From Surface Mine Blasting (1980).
Going over a guideline doesn’t mean damage happened, and staying under it doesn’t guarantee there will be none. Existing cracks, settling and moisture all play a part.
When to hire a professional
If you think construction has damaged your home, or you’re heading for a dispute, hire a professional vibration monitoring company. They use calibrated seismographs at your foundation and write reports that insurers and contractors take seriously. A structural engineer can assess any damage. Phone readings are a good guide, not a certified measurement. Use them for your own records and to start a conversation.
Frequently asked questions
How much vibration can damage a house?
It depends on the building and the type of vibration. Caltrans (2020) gives 0.3 in/s (7.6 mm/s) PPV for older homes under continuous vibration and 0.5 in/s (12.7 mm/s) for a single transient event. Fragile and historic buildings have lower values, and new homes higher ones.
Is there a legal limit for construction vibration in the US?
There's no single national limit for construction vibration near homes. Some cities, states and project contracts set their own, often based on guidelines like these. Ask your city's building or permit office and the contractor which limit applies to your project.
What does PPV stand for?
Peak particle velocity. It's the highest speed at which the ground or a building moves back and forth during a vibration, in in/s or mm/s. It isn't the speed of the wave traveling through the ground, which is far faster.
Can I use my phone to check against these limits?
As a rough check, yes. Our construction vibration monitor logs estimated peak velocity for each event. It's a good guide, not a certified measurement, and it can read low on sharp jolts, so hire a professional when it matters.
Why are the limits for a single blast higher than for pile driving?
A blast is one short event. Pile driving and vibratory rollers shake a building over and over for hours, which can loosen and crack finishes at lower levels. That's why the guidelines have separate columns for transient and continuous vibration.
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