Originally Posted by
jonnyenglish
As with most building materials, pest control is required. With AAC blocks, adequate barriers are needed to deter termites from taking up residence, this should be done using termite proof grout and a form of flexible gel coat applied to all AAC blocks after placing, and before rendering. Rendering alone may not prevent termites, as there will inevitably be cracks due to shrinking and settling on any new build. I haven't heard nor seen of any such coating being used here in Thailand, but that doesn't mean that it doesn't get used.
I considered using AAC blocks on my build , but my builder adamantly refused to use them. I'm sure that this was because he would rather use materials he was familiar with to avoid catastrophe and potential loss of face, but it could also be that he is aware that it's not as straightforward using these blocks as it would at first appear, possibly owing to availability of materials, extra care and processes required.