Common use of Wall Insulation Clause in Contracts

Wall Insulation. Batt insulation for exterior walls of the building shall be mineral or glass fiber conforming to Federal specifications HH-I-S21 and ASTM C665. Flame spread shall not exceed 25, ASTM E84. ▇▇▇▇▇ shall be rated at R-11 or better. Provide a sound transmission coefficient of not less than 45 in all floor-to-ceiling interior walls and horizontal acoustic grid ceilings that enclose private offices, conference rooms, break rooms, libraries, and rest rooms - to accomplish this, said walls may have to extend a minimum 12" above the drop ceiling. STOP POINT: The Lessee is to be given at least a 48 hour advance notification to conduct an on-site inspection after insulation is installed and before the wall finish process is started. An inspection will be made by the Lessee within 2 business days of receipt of notification. Sound attenuation batt insulation for interior walls shall be 3” thick, United State Gypsum Thermafiber conforming to ASTM C655, and Federal Specification HH-1-521E, Type I or II or approved equal.