There is growing awareness in the AEC industry of the destructive problems of moisture and air leakage through the building envelope. Building codes have caught up to the findings of building scientists and now require continuous air barriers across the envelope, including at penetrations and openings such as at windows, curtain walls, and doors.
Understanding the “Leak Triangle” and utilizing the 3-D approach—deflect, drain and dry—will enable the design/construction team to be more effective in analyzing problems and recommending solutions.
Waterproofing concrete is essential at below-grade areas to prevent water intrusion and structural damage. In many areas of the world we have exhausted the building sites having the good