Specifications - City of Montpelier, Vermont

Title:Montpelier District HeatingCity of Montpelier, VT15050 – Basic Mechanical Materials and MethodsIssue Date:September 28, 2012Page #:10 of 103.7 APPLICATION OF FIRESTOPPING AND JOINT SEALERSA. General: Comply with joint sealer manufacturers' printed application instructionsapplicable to products and applications indicated, except where more stringentrequirements apply. Comply with recommendations of ASTM C 1193 for use ofelastomeric joint sealants.B. Surface Cleaning for Joint Sealers: Clean surfaces of joints immediately beforeapplying joint sealers to comply with recommendations of joint sealermanufacturer.C. Tooling: Immediately after sealant application and prior to time shinning orcuring begins, tool sealants to form smooth, uniform beads; to eliminate airpockets; and to ensure contact and adhesion of sealant with sides of joint.Remove excess sealants from surfaces adjacent to joint. Do not use tooling agentsthat discolor sealants or adjacent surfaces or are not approved by sealantmanufacturer.D. Installation of FireStopping Sealant: The Contractor must determine thepenetration is of suitable size and is properly prepared for installation of the firecaulk. Install sealant, including forming, packing, and other accessory materials,to fill openings around mechanical services penetrating floors and walls, toprovide firestops with fireresistance ratings indicated for floor or wall assemblyin which penetration occurs. Comply with installation requirements establishedby testing and inspecting agency. The Contractor must have, for reference on site,the testing laboratory written installation instructions specific to the installationbeing performed.3.8 INSTALLATION OF ACCESS DOORSA. Set frames accurately in position and securely attached to supports, with facepanels plumb and level in relation to adjacent finish surfaces.B. Adjust hardware and panels after installation for proper operation.END OF SECTION 15050BASIC MECHANICAL MATERIALS AND METHODS1505010