Renovation of an educational facility in Dexter, Michigan. Completed plans call for the renovation of a educational facility.

A. Remove portions of existing building as indicated on Drawings including, but not limited to, the following: 1. Remove portions of roof construction and/or trim as noted within drawings.. 2. Remove other items indicated, for salvage and relocation. 3. Unless otherwise indicated, fill excavations, open pits, and holes in ground areas generated as result of removals, using specified fill; compact fill as specified in Division 31. 1. Exterior Joints: Seal open joints, whether or not the joint is indicated on drawings, unless specifically indicated not to be sealed. Exterior joints to be sealed include, but are not limited to, the following items. a. Wall expansion and control joints. b. Joints between door, window, and other frames and adjacent construction. c. Joints between different exposed materials. d. Openings below ledge angles in masonry. e. Other joints as indicated. 2. Interior Joints: Do not seal interior joints unless specifically indicated to be sealed. Interior joints to be sealed include, but are not limited to, the following items. a. Joints between door, window, and other frames and adjacent construction. b. Other joints as indicated. 3. Do not seal the following types of joints. a. Intentional weepholes in masonry. b. Joints indicated to be treated with manufactured expansion joint cover or some other type of sealing device. c. Joints where sealant is specified to be provided by manufacturer of product to be sealed. d. Joints where installation of sealant is specified in another section. e. Joints between suspended panel ceilings/grid and walls. The scope of work for this project consisted of field investigations of the roof systems covering the designated buildings. Our field investigation work consisted of visual observation of the roof including the membrane, base flashings, penetrations, sheet metal accessories, and roof top equipment and supports. Nondestructive moisture detection surveys (infrared thermography) were performed at each of the designated buildings. This part of the survey was done after sundown. A DJI Mavic 2 Enterprise drone with infrared thermal scanning and imaging was used to seek out areas of entrapped substrate moisture. Wet insulation retains heat longer and conducts heat more readily than dry insulation which allows the camera to detect the thermal anomalies caused by this and other conditions. The device was used to scan the roof and flashing surfaces for surface temperature variations. Representative test cuts were made to roofs at each location to determine key as-built information such as the deck type, insulation types and roof system. A rating system was formulated to establish a format whereby each roof area is rated relative to various factors including existing roof conditions, current maintenance and repair requirements, necessary roof system replacement areas, and general life expectancy. The parameters established to rate each roof are outlined in Table 1 below. Each of these items were addressed as they pertain to each roof area prior to determining a rating number. Each roof has been rated from 1 to 5 with a 1 rating representing the best condition and a 5 rating representing the worst.