Iain Pearson Stone Masonry

Iain Pearson Stone Masonry Stone mason, stone restorer using traditional methods.

Lime Mortars, Pozzolans, Natural Hair & Fibre binders, Historic Sands & Natural Earth Ochre Pigments:A definitive guide....
24/04/2026

Lime Mortars, Pozzolans, Natural Hair & Fibre binders, Historic Sands & Natural Earth Ochre Pigments:A definitive guide.

Air Lime vs. Hydraulic Lime:

Air Lime (Non-hydraulic): Does not set in water, sets by air.
Air lime is often used where high v***r permeability is required for moisture management in buildings.

Hydraulic Lime (NHL): Contains clay, sets initially with water, and then carbonation, making it suitable for damp conditions.

Air lime (non-hydraulic lime) is a traditional binder made from high-calcium limestone (

Mr Thomas’s chop house, Manchester, England.One of my favourite buildings I’ve worked on, I’ll be talking or rather expl...
22/04/2026

Mr Thomas’s chop house, Manchester, England.

One of my favourite buildings I’ve worked on, I’ll be talking or rather explaining more about this project in greater detail at a later date, & I’ll also be posting unseen content from lots of other amazing period architecture that I’ve had the pleasure of working on, some dating back to the 11th century. I’ll also be explaining in great detail about the uses of different mortars & techniques from the past & hopefully setting up some form of workshop/online tutorials for skills that have either been lost in the fast paced society we live in or haven’t been truly documented due to either the above or lack of enthusiasm/time etc…

I did all the terracotta remedial replacements on this job, but as I said above I’ll go into the full details & explain everything in another post.

As many of you are aware I’m still in recovery through more than one disability, so bare with me, but it’s definitely worth checking out the full history of just this building alone, which is one of the first buildings in Manchester to have Electricity, its steeped in history.

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