Traditional Mortar

Internal plastering using Tradlym products

Laths

Riven Oak or Chestnut lath in various lengths. Fix using stainless steel nails.

Tradlym Mortar BM2

A mix of mature lime putty and 3mm sharp, washed, well graded sand at a ratio of 3:1

Tradlym Backing with Hair/Fibre

A mix of mature lime putty and 3mm sharp sand at a ratio of 3:1 with the addition of animal hair (Goat, Horse, Yak as specified) or polypropylene fibre.

Tradlym Fine Finish

A 2:1 mix of mature lime putty with silver sand.

Application

Fix laths if required. Allow 25 no metre lengths to the square metre.

Make sure surfaces are sound. Wet surfaces thoroughly. Dub out any large voids using Tradlym Mortar BM2. Allow dubbing out to cure.

First coat

Wet surface thoroughly. Apply 1st backing coat of Tradlym Backing with Hair/Fibre to a maximum depth of 10mm. If application is to laths sufficient mortar must be pushed through the lath to form “hooks” to take the weight of the remaining mortar. Allow to cure (up to 10 days) misting occasionally if plaster starts to dry out. Scratch to receive 2nd coat.

Second coat

Wet 1st coat. Apply 2nd coat of Tradlym Backing with Hair/Fibre and straighten up. Allow to cure again misting if necessary. Scratch with devil float.

Finish coat.

Wet 2nd coat. Apply Tradlym Fine Finish plaster to a maximum depth of 4mm.

Protect all work from strong sunlight. See the Tradlym on-site guide for further advice.

 

Estimating usage of Tradlym products - to be used as a guide only.

Bricklaying

One 15 litre tub will lay 27 bricks in a 225mm wall

One tonne will lay 900 bricks in a 225mm wall

Pointing

One 15 litre tub will point 1.1m² of joints 12mm x 25mm

One tonne will point 40m² of joints 12mm x 25mm

Plaster/render

One 15 litre tub will cover 1.4m² at 10mm thick

One tonne will cover 50m² at 10mm thick

For 1st coat of backing onto lath, halve coverage

Plaster/render…finish

One 15 litre tub will cover 3.50m² at 4mm thick

One tonne will cover 150 at 4mm thick

Limewash

One 15 litre tub will cover approximately 42m² at one coat.