Figure 8. Controlling moisture through building design and construction.

Figure 8Controlling moisture through building design and construction

(1) Drain rainwater and surface water from near the building. (2) Drain the foundations with an underground pipe. (3) Install a tilted (rather than a flat) roof in wet climates. (4) Install eaves to protect walls from rain. (5) Install water-tight piping penetrating the roof. (6) Install good ventilation, especially in bathrooms, laundry rooms and kitches. (7) Install watertight, sloping floors with floor drains in wet-process rooms. (8) Prevent condensation on walls and windows. (9) Install vapour barriers in walls. (10) Use good, watertight window construction, including window sills. (11) Drain rainwater from the roof. (12) Protect against frost when applicable. (13) Ventilate attics and crawl spaces when applicable.

From: 3, Moisture control and ventilation

Cover of WHO Guidelines for Indoor Air Quality
WHO Guidelines for Indoor Air Quality: Dampness and Mould.
Copyright © 2009, World Health Organization.

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