BADLY REPAIRED BRICKWORK		BRICKS REPLACED AND REPOINTED		CEMENT POINTING REMOVED		REPOINTED AND PINNED WITH LIME

                                                                                                            

 

 Much harm can be done to older buildings as a result of inappropriate repairs and modernisation work and the use of modern materials that have the unfortunate effect of suffocating old houses that need to BREATHE

One of the most damaging applications is where traditional lime mortar has been removed and replaced using impervious modern cement mortar.

This traps moisture in the structure which can lead to poor insulation,decay,and also frost damage to the brick faces.

Lime mortar is porous and allows moisture to evaporate,helping to keep a building free of so called damp

Lime mortar is a relatively softer mortar which is another of its advantages,as old buildings are made on shallow foundations,they frequently move over time,lime mortar will allow this movement to occur across a large area and through the mortar joint rather than through the bricks. 

It is therefor vital to ensure the correct materials(sands and limes) and ratios are used.

With a wide variety of limes available it is important to choose the correct lime for purpose and also the correct sand

Please be aware just by putting hydrated lime in with a sand and cement mix will not make a breathable mortar,this will only improve the plasticity and workability of the mix.

As with any work, preparation is the key to success you can have the best materials and lime mixes possible,but if the background is unstable,dusty,dirty,mouldy,then it will fail.