PCA conference 2016

  What a PCA conference it was! CEO Stephen Hodgson was able to tell delegates that the PCA is in great shape (as if we didn’t know). Over the past year PCA has delivered 2000 days of training and membership is growing well above 400 firms and individuals. Great stuff. Great speakers from across the […]

Retrofit insulation Traditional Buildings

Retro-Fit Insulation Traditional Buildings. I was a guest at the Yorkshire branch AGM of the Institute of Historic Building Conservation today.  The AGM was for members only, but it was preceded by two fascinating presentations, which I sat in on. John Preston gave a presentation on the Impact of Retrofit insulation on traditional Buildings. Nick […]

Which Wall Tie is Best? (three parts to all)

Remedial Wall ties for cavity wall tie replacement – which wall tie is best? Ever since the mid 80’s when wall tie corrosion first became widespread, people have asked; which wall tie is best? However, there really is no definitive answer for this. It’s like asking which car is best; is that a 4X4, sports coupé […]

Residential Ventilation Masterclass PCA

Extra knowledge of domestic ventilation via PCA   Last year I posted a review of the Bpec domestic ventilation engineers course. Now, after a year putting these skills to good use, I’ve been able to add further knowledge, via the new Residential Ventilation Masterclass, run by the Property Care Association. PCA members and many residential […]

Relative humidity and vapour pressure – which is best?

Time for a chat about humidity and the internal environment.     A student asked me the other day “Why would I need to find out the vapour pressure in a house, when I already have the Relative Humidity”?   A great question and one which others have asked, so I thought I’d explain the […]

Copyright © 2010 Preservation Expert. Legal Stuff: All the advice and information in the posts on my blog is made in good faith and is based on my experience and knowledge at the time of writing. However, nobody is infallible and whilst I’m confident that most of what I write about preservation issues is accurate, there’s a good chance there’ll be an error or two somewhere. I do change my mind about stuff, as I gain more experience. In view of this you must make your own decisions on whether to follow any advice I write and think about this; I could be wrong. No responsibility will be accepted by the author for any losses anyone may suffer as a result of any mistake or for the consequence of any action you take as a result of reading this blog. If you do suffer a loss, resulting from anything I’ve written, a verbal heartfelt apology will be your only compensation.