Blog | Listed Building Surveys

More Liesegang Rings

As a continuation of my occasional observations, these Liesegang rings were seen in a cellar in Oxfordshire
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Magazine Article on Damp Surveys of Traditional Buildings

I wrote an article which was published in the Nov/Dec 2020 issue of Listed Heritage magazine
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Iron Pyrites in Slate

The rust stains sometimes seen in cheaper slates are impurities of naturally occurring iron pyrites. As well as being unsightly, this will also lead to premature ageing and failure.
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Asphalt Roof Defects

Asphalt is an excellent roofing material but It suffers when use vertically and in locations that can be exposed to be hot sunshine for prolonged periods.
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Asian Longhorn Beetle

In the UK, we have the House Longhorn Beetle. In Europe and Asia this species of beetle can be found much larger and can do considerable damage.
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Resin Repairs on Historic Timber-Frames - A Ticking Bomb..?

The use of epoxy-resin for the repair of historic timber-frames has been seen since the 1990's, or a little earlier. In theory, the product can provide a strong and robust option, especially in awkward spaces and random shaped decayed frames and joints. However, there is little known about the long-term building pathology and consequences of this type of repair and we are now starting to see the problems developing.
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Writing about historic buildings