Code of Massachusetts Regulations
780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS
Chapter 26 - Plastic
Section 2603 - FOAM PLASTIC INSULATION
Subsection 2603.8 - Protection against termites

Universal Citation: 780 CMR MA Code of Regs 2603.8

Current through Register 1531, September 27, 2024

In areas where the probability of termite infestation is very heavy in accordance with Figure 2603.8, extruded and expanded polystyrene, polyisocyanurate and other foam plastics shall not be installed on the exterior face or under interior or exterior foundation walls or slab foundations located below grade. The clearance between foam plastics installed above grade and exposed earth shall be at least 6 inches (152 mm).

Exceptions:

1. Buildings where the structural members of walls, floors, ceilings and roofs are entirely of noncombustible materials or preservative-treated wood.

2. An approved method of protecting the foam plastic and structure from subterranean termite damage is provided.

3. On the interior side of basement walls.

FIGURE 2603.8 TERMITE INFESTATION PROBABILITY MAP

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