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A look at the construction of various types of walls, from a stone castle in Ireland to polystyrene houses in the United States. A strong emphasis throughout on tracking down the true causes of damp, featuring many of Mike’s pioneering techniques.
DVD Topics:
1. Introduction – early walls
 Wattle and Daub – advantages
2. Ye olde oak construction
Classic 15th century timber framed construction
3. Monitoring moisture & creepy-crawlies
Measuring moisture in old timber frame buildings
Detecting insect infestation
4. Written in the stones
Solid masonry walls - importance of breathability
Lime mortars - example of Cor Castle in Ireland
5. A study in lime
Example of Pallace Wharf in Ireland
6. The cracking cottage
Example of thatched cottage where use of cement has caused damp
7. Between the walls – 2 case studies
Blocked cavity trays - extreme interior mould caused by blocked cavity wall
8. The ties that bind
Types of cavity ties and problems with them – how to locate ties
9. Geophysical surveys
10. Why do walls fail?
Vegetation
Subsidence
Heave
Over-hydration - example from Hong Kong
11. High Silica bricks
12. Diagnosing damp walls
Limitations of moisture meters
Hydrosticks
Salts test
Calcium Carbide test
Chemical analysis
13. The truth about damp and DPC’s
DPC’s do not fail - real causes of damp
14. Damp sources – raised ground levels
Bridging the DPC
15. Damp sources – damp from above
Gutters and downpipes
16. Damp sources – drips inside and out
Hidden waterworks
17. Condensation – symptom, not cause
Case study – monitoring condensation
18. Condensation – within these walls
The ‘EIFS’ System – interstitial condensation - case study in Chicago of American ‘closed cell’ wall system
19. Long-term off-site monitoring
A new system for monitoring damp
Use in timber and concrete and for condensation
20. Timber frames USA – the final word
The problem with modern timber-framed building methods
Bonus Section
More about Lime
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