Measurement

Question 1

What are the differences between IPMS 1, 2, 3 & 4

Answer 1

IPMS 1 - Floor area measured to the external wall (GEA)

IPMS 2 - Floor area measure to the internal extent of the internal dominant face (GIA)

IPMS 3 - Measurement for exclusive use areas (NIA)

IPMS 4 - Measuring selected parts of a building

Question 2

What equipment can you use for measuring?

Answer 2

Tape measure, laser disto, trundle wheel

Question 3

How do you calibrate a disto?

Answer 3

Measure against a known distance.

Process for calibrating Leica distos on their website.

Question 4

What areas are excluded in GEA and GIA?

Answer 4

GIA
- Perimeter wall thickness
- External car park
- Patios and decks not forming part of building

GEA
- External car park
- Patios and decks not forming part of building

Question 5

What is excluded in NIA?

Answer 5

Toilets, plant rooms, communal corridors etc

Only measures the useable space.

Question 6

For what purpose would you use GEA, GIA and NIA?

Answer 6

GEA - Town planning, RCAs for residential

GIA - RCAs, valuation of industrial buildings

NIA - Estate agency & valuation, property management (service charge)

Question 7

What is the maximum tolerance a measurement should be within?

Answer 7

Depends on what is being measured as per the code of measuring practice guidance note.

Pacing the area of a car park that’s being resurfaced for an interim valuation +/- 10% may be reasonable.

Measuring an office building with a disto +/- 1% would be more appropriate