Glossary

1:1:6

mortar 1 part cement 1 part lime and 6 parts sand by volume.

1:2:9

mortar 1 part cement 1 part lime and 9 parts sand by volume. 1:2:9 is prone to premature failure, 1:1:6 is a better option.

2-way switching

A method of wiring switches so that a lamp can be turned on or off from more than one switch.

3:1

mortar 3 parts sand to 1 part cement by volume.

ac

a/c or a.c.

1. alternating current
2. air conditioning

Acrylic

1. Type of plastic
2. Type of Paint
3. Type of adhesive/sealant (typically marketed as 'solvent-free' gripfill/no-more-nails/etc)

AF

Across Flats. Most commonly used imperial nut