MIL-HDBK-1001-5 Roofing And Waterproofing S/S By Mil-Std-3007This handbook sets forth guidelines for design of roofing, LAYOUT 1 and waterproofing systems for building construction. It covers design of new low-slope and steep roof systems, reroofing of existing buildings, and waterproofing, and dampproofing systems.

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MIL-HDBK-1001/5A

ASHRAE 1985 Handbook - Fundamentals, and the Manual of Built-up Roof Systems by Griffin. Where data reported by insulation manufacturers differs from that shown in handbooks, appropriate justification and explanation should be obtained. Where the thermal resistance declines with age, the aged values should be used.

3.4 Tapered Insulation. Where the roof deck is flat or level, one reasonable means available for providing adequate roof slope for drainage purposes is by using the insulation; tapered factory fabricated insulation may be used for this purpose. Manufacturers of several types of board insulation provide a variety of tapers. Where tapered insulation is to be used, careful detailing and dimensioning is necessary in order to

ensure that the proper slope and positive drainage are achieved. The use of tapered insulation should be limited to reroofing of existing low slope roof buildings.

3.5 Application Criteria. It is extremely important that the type or types of insulation to be used are appropriate for the roof assembly. Refer to other sections in this handbook for specific criteria with each type of roof deck and/or roof membrane. Carefully read and evaluate the detailed application criteria and limitations on use for several major manufacturers of the type of insulation to be utilized or permitted along with other sections of this handbook, in order to eliminate any incompatibility.

Specific provisions should be set forth for the insulation manufacturer and contractor to meet to set up requirements regarding storage and installation of insulation.

The insulation must be kept dry, both when stored on the job site and when installed on the roof. Waterproof covering over stored insulation is essential, as is elevating the insulation so that ground water cannot enter. Require that stored material be adequately secured from blowing away. Insulation must be covered at the completion of each day's work with completed roofing.

Means for securing the roof insulation to the roof deck to resist displacement, such as adhesives and/or corrosive resistant mechanical fasteners, which are compatible with the materials used, should be specified. Refer to Section 12.