Specifications - City of Montpelier, Vermont

Title:Montpelier District HeatingCity of Montpelier, VT15050 – Basic Mechanical Materials and MethodsIssue Date:September 28, 2012Page #:7 of 104. Milcor Div. Inryco, Inc.5. Nystrom, Inc.PART 3– EXECUTION3.1 EXAMINATIONA. Examine substrates, areas, and conditions, with Installer present, for compliancewith requirements for installation tolerances and other conditions affectinginstallation and application of joint sealers, firestopping and access panels. Donot proceed with installation until unsatisfactory conditions have been corrected.3.2 PENETRATION OF RATED WALLS AND FLOORSA. Unless otherwise specified or noted, consider interior walls tobe penetrated ashaving a onehour rating and apply codeconforming means and methods toprotect those walls.B. Unless otherwise specified or noted, consider floors tobe penetrated as having aonehour rating and apply codeconforming means and methods to protect thosefloors.3.3 INSTALLATION OF SLEEVESA. Applications:1. Install sheet metal sleeves for all pipes passing through nonfire rated drywall partitions and walls.2. Install sheet metal sleeves for all ducts passing through floors and smokerated walls and in walls constructed of concrete or masonry.3. Install steel pipe sleeves for all pipes passing through fire and/or smokerated walls, and in walls constructed of masonry or concrete.4. Sleeves may be eliminated in walls when holes are cleanly cored or sawcut through solid concrete or masonry.5. Penetrations through exterior walls shall be sleeved with steel pipe.B. Sleeves poured in place shall have anchors welded to the outside of the sleeve toBASIC MECHANICAL MATERIALS AND METHODS150507