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DO I need lime pointing ?

Lime pointing edinburgh

WHY should I use lime on traditionally built buildings?

Lime pointing has certain characteristics which makes it the most appropriate material for repairing buildings constructed or finished with lime. Lime mortars allow ‘traditionally constructed’ (mass wall) buildings to ‘breathe’, unlike modern OPC mortars which can be virtually impermeable to moisture, trapping it within the walls and leading to dampness and decay internal.

Why cement pointing bad vs lime pointing

Cement pointing traps the moisture, which through the action of frost and the concentration of salts accelerate the decay of the stone.

Cement-rich mortars, like these, will set harder than the stone. Cement mortar is less porous than stone, so moisture gets trapped in the stone and evaporates at the stone face, causing it the weather rapidly and over time leaves the pointing standing proud of the stone. Cement-rich mortar prevents the stone and bricks from expanding when warmed by the sun, causing the stone to break up more quickly.

In addition to damaging the stonework, cement-rich mortar looks out of place as it is often a grey or off-white colour which does not complement the colour of the stone and is in most cases too strong for the masonry units. For more information on our Lime Pointing services, please contact us.

Frequently asked questions

Lime mortars allow ‘traditionally constructed (mass wall) buildings to ‘breathe’.

Cement pointing traps the moisture which, through the action of frost and the concentration of salts, accelerate the decay of the stone.

Lime pointing has certain characteristics which make them the most appropriate material appropriate material for repairing buildings constructed or finished with lime. Lime mortars allow ‘traditionally constructed’ (mass wall) buildings to ‘breathe’, unlike modern OPC mortars which can be virtually impermeable to moisture, trapping it within the walls and leading to dampness and decay internal

In addition to damaging the stone stonework, cement, rich mortar looks out of place, as it is often a grey or off-white colour which does not complement the colour of the stone and is in most cases too strong for the masonry units.

Depending on access, size of area and stone used, costs generally are £60-£120 per SQM.

It helps persevere your house for future years, it help the house breath and most importing it looks good. 

Lime Pointing

We are experts in using lime mortar please vist this service for more information

Rope Access

Cheaper faster solution to scaffolding do you have high building in Fife? visit our service page on rope access

Stone Repairs

Stone repairs is lime mortar repair to weather stone that can be applied by the rest of the existing block of stone is in sound condition

Conservation

We have many years in maintain / persevering our built heritage, visit our conservation page for more information

COMMON QUESTION, CAN YOU USE LIME IN THE WINTER ?

Things to look for on your building lime pointing vs. cement pointing

  1. Stone erosion around hard cement pointing
  2. Missing or loose pointing on the stonework

Likely cause of damage to the building

  1. Old decayed lime or cement pointing
  2. Cement pointing prevents evaporation and causes saturated stonework

Suggested repair works

  1. Selective repointing of masonry units using traditional lime pointing Edinburgh
  2. Carefully remove cement pointing and repoint with lime
Key Points for lime pointing vs. cement
  • Lime mortar is more porous than cement mortars
  • Lime is breathable cement is not
  • Historic buildings are frequently constructed with relatively soft masonry units and many types of stone and minor movement in such buildings is quite common. This movement breaks the weakest part of the wall, and with cement mortar, this is usually the masonry unit. When lime mortar is used, the lime is the weaker element and the mortar cracks in preference to the masonry.
  • Non-hydraulic lime takes longer to set and should not be allowed to freeze before it is well set. Although the setting process can be slow, the drying time of a lime mortar must be regulated at a slow rate to ensure a good final set.
  • A rapidly dried lime mortar will result in a low-strength, poor-quality displaying shrinkage cracks. In practice, lime mortars are often protected from direct sunlight and wind with damp hessian sprayed with water to control the drying rates.
Can we carry out lime pointing in the winter ?

WHAT IS THE PROCESS 

Our Edinburgh team will check your stone wall or stone and brick wall to have a closer inspection of the existing mortar

Then we can send your edinburgh lime to the Scottish Lime Centre for a closer inspection to try and find the based mortars type for a additional fee of £980+vat, this allows you to tray and match the existing as close as possible 

Then we can use traditional methods to replace your mortar with new lime 

Our clients say

Edinburgh Stonemasons recently installed a high quality hardwood and glass panelled doorway in my C-listed house The design of the door and the installation of it – it is an outer doorway – were first rate, and we particularly appreciated the trouble Edinburgh Stonemasons went to use and install sympathetic wood and stone throughout – this involved the sometimes unforeseen cutting of basalt blocks and obtaining at some trouble appropriate materials to match the existing house. I would highly recommend the firm. Hope that helps. And good luck!
Michael Spiller
Owner
An honest appraisal of the work required, a clear quote, high quality work, clear communication throughout the project, and great value, could not recommend this firm more highly.
Stewart removed old mastic from our sash and case windows and applied new mastic to 9 windows across three floors. Great quality work, clear communication. Highly recommended
Repointed wall surrounding my house Great workmanship great communication throughtout the job and throughly cleaned site after work was completed would highly recommend

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