Damp Proofing

Outhouse damp/mould issues

Anonymous user 03/03/2024 - 3.39 PM

Hi all I have an outhouse that has significant cracks at the front. It was made with breeze blocks and then rendered. As a result there is significant damp (appearing as a result from the cracks) and mould spores occurring also throughout the room. There also doesn't appear to be any ventilation. We have since found out that no water proofing membranes were added in between breeze blocks and render. I have been contemplating adding cedar panels on just the front to give it a log cabin feel. My questions are, since there was no water/damp proofing, what steps do I need to take? Shall we take off all render on all sides, add the water proofing steps and re-render? Then nail on cedar panel cladding? Is it necessary to render the front again or is there a good waterproofing step to add under cedar panels? Also, which water proofing/damp methods should you use? Lastly, I presume we should add a vent in to stop the mould occurring and allow more breathability? Are there any in particular you would recommend for this structure? This might seem a silly question but which tradesmen should we seek in above and also to help restore interior mould/damp issues? would this be builder and plasterer? Thank you for your help!