Introduction Series introduction Introduction to the Building Regulations *What are Building Regulations? *What do they apply to? *How are they enforced? Introduction to Part C - Site preparation and resistance to contaminants and moisture *General introduction, background and legislation changes *The regulatory impact of Climate change *The Environmental Protection Act 1990 *The Building Regulation requirements *Ways of satisfying the requirements Site Preparation And Resistance To Contaminants Clearance or treatment of unsuitable material *Site investigation *Unsuitable material (vegetable matter and tree roots) Resistance to contaminants *Definitions *Sites likely to contain contaminants *Carrying out a risk assessment *Stages of a risk assessment *Hazard identification and assessment *Risk estimation and evaluation *Remedial measures *Treatment *Containment Removal *Risks to buildings, building materials and services *Aggressive substances *Combustible fill *Expansive slags *Methane and associated gases *Risk evaluation *Remedial measures *Radon *Determining the level of protection *Detailed protective measures Subsoil drainage *Provision of subsoil drainage *Dealing with existing subsoil drains *Measures to prevent the entry of ground water *Flooding Resistance To Moisture Floors *Moisture from the ground *Ground supported floors *Suspended timber ground floors *Suspended concrete ground floors *Resistance to damage from interstitial condensation *Resistance to surface condensation and mould growth Walls *Moisture from the ground (internal and external walls) *Moisture from outside *Solid external walls *Cavity external walls *Cavity insulation *Framed external walls *Cracking of external walls *Impervious cladding systems for walls *Joints between walls and doors and window frames *Door thresholds *Resistance to damage from interstitial condensation *Resistance to surface condensation and mould growth Roofs *Resistance to moisture from outside *Resistance to damage from interstitial condensation *Pitched roofs (over 15 deg) with an attic space *Roofs pitched at less than 15 deg without an attic space *Resistance to surface condensation and mould growth