Lithomex Stone Repairs in Edinburgh vs Cement Repairs
Lithomex Stone Repairs in Edinburgh are applied to the existing masonry units were the surface of the existing stone has deteriorated but is still structurally intact. Lithomex has high vapor permeability, low modulus of elasticity, excellent bond characteristics and achieves early freeze-thaw resistance. Lithomex develops early strength but not such that it becomes stronger than the background.
Stone repairs in Edinburgh and lime mortar repairs are specially formulated mortar based on Natural Hydraulic Lime and aggregates for the repair or simulation of masonry, brick or stone. Lithomex stone repair Edinburgh is a custom colored mortar to match existing stone, please see step by step guide below.
Why is cement Repairs bad for my stonework?
Cement repairs to masonry trap the moisture, which through the action of frost and the concentration of salts accelerates the decay of the stone over time
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 to weather rapidly and over time leaves the pointing standing proud of the stone. Cement-rich mortar prevents the stone from expanding when warmed by the sun, causing the stone to break up more quickly.
In addition to damaging the stone, cement mortar can looks out of place, as it is often a grey or off-white color which does not complement the color of the stone.
For more information on our stone repair, Edinburgh services contact the Edinburgh Stonemasons Ltd team on email@example.com or 0131 221 6602 and we can carry out a free survey of your building and highlight areas that of concern.
Experts in Stone Repairs Edinburgh
See below photos of some repairs carried out by Edinburgh stone repairs using lime based materials over the last 10 years
Step by Step guide to Stone Repair Edinburgh
- Remove old cement repairs using traditional hand tools
- If the existing stone is too soft its recommend for stone replacement
- Apply a base coat of minimum thickness of 5mm to the maximum of 40mm
- Apply top coat minimum thickness of 5mm and leave for 5hours unto 24hours
- Rub back to a finish level and apply stone tolling to match existing stone if required
- Cut back joints and lime point using traditional lime mortar