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Specification
Perlite Loose-Fill
Insulation
GUIDE SPECIFICATIONS
Part 1 - General
1.01 SCOPE
The work covered by this section of the
specification includes supplying and installing loose-fill material for the thermal
insulation of all masonry walls in accordance with these specifications and applicable
drawings.
Part 2 - Products
2.01 MATERIALS
Perlite loose-fill insulation. Each package shall be clearly marked as such.
The insulation material should conform to the requirements of ASTM Designations
C549. Prior to installation of the insulation, the manufacturer should furnish a
certificate to the architect or owner stating that the product conforms to the Standard
Specifications for Loose-Fill Insulation as adopted and published by the Perlite
Institute, Inc.
Part 3 - Execution
3.01 INSTALLTION
(a) The insulation must be installed in the following locations:
- In the cores of all exterior (and interior) hollow masonry
units.
- In the cavity between all exterior (and interior) masonry
walls.
- Between exterior masonry walls and interior furring.
(b) The insulation shall be poured directly
into the wall at any convenient internal. Wall sections under doors and windows shall be
filled before sills are placed. Rodding or tamping is not necessary.
(c) All holes and opening in the wall through which insulation can escape shall be
permanently sealed or caulked prior to installation of the insulation. Copper, galvanized
steel, or fiberglass screening shall be used in all weep holes. (The inclusion of
weep holes is considered good construction design practice to allow passage of any water
that might penetrate the cavities or core spaces of wall construction.)
(d) Insulation must remain dry. Cavity caps or other suitable means should be used
as the work progresses to insure that the insulation is protected from inclement weather.
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