Lime Mortar

Mortar is a mixture of sand or aggregate and binder (lime or cement) that is most often used to build brick or block walls. This mixture creates a workable...

Its breathable! Lime mortar is highly breathable allowing water to pass through the building thereby avoiding a build-up of moisture...

Ty-Mawr’s mortars have always been manufactured as hot lime mixes.  We have perfected hot mixes over the last 20 years producing high-quality mortars...

Application Type of Lime Notes Pointing Tŷ-Mawr Premixed...

More than likely it is an earthen mortar or ‘stabilised soil’ dug straight out of the ground outside your house. This may have been mixed with some quicklime...

Dating mortar accurately is very difficult unless it is obviously something like a black ash mortar which was prevalent in the 19th and early 20th century...

Preparing the Mortar Do not add water - a premixed mortar when purchased may appear too dry. It must be ‘knocked-up’ (the process of...

Preparing the mix Mix the lime and aggregate by volume (check the specification for exact mix ratio for the job or refer to the table...

We are often asked if our lime mortars can be used with a conventional pointing gun. The answer is that you can with certain machines, usually the forced...

Crumbling or failing mortar can be caused by a number of reasons: Failing mortar can usually be attributed to a lack of carbonation...

Lime Mortar Leaching has two possible causes: Exposure of pointing to rain prior to carbonation can cause lime to...

Cracking of Lime Mortar has several possible causes: Lack of moisture control – Drying and carbonation are two different...

Lime Mortar - Inappropriate finishes / detail ‘Ribbon’ or raised pointing not only has an aggressive character...

Possible causes of smeared Lime Mortar over masonry/brick Unskilled or hurried application of pointing can lead to...

My lime mortar appears a different texture and colour to what I thought it would be, is there a reason for this? The visual appearance...

There are many types of building lime on the market. It is crucially important to understand their differences and the way in which they perform, ...

Which aggregate should I use? We have a range of aggregates available that can be used across all applications including; pointing...

Depending on the size and location of your project, supplying the aggregate from our yard in the Brecon Beacons can significantly increase the delivery...

Guidance for Protecting Lime work all year round As with all good building practice using any mortars, plasters/renders and paints, ...