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.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 - 48 - 49 - 50 - 51 - 52 - 53 - 54 - 55 - 56 - 57 - 58 - 59 - 60 - 61 - 62 - 63 - 64 - 65 - 66 - 67 - 68 - 69 - 70 - 71 - 72 - 73 - 74 - 75 - 76 - 77 - 78 - 79 - 80 - 81 - 82 - 83 - 84 - 85 - 86 - 87 - 88 - 89 - 90 - 91 - 92 - 93

MIL-HDBK-1001/SA

Expansion joint.  A flashed, structural separation between two building segments, designed to permit free movement without damage to the roof system.

Exposure.  Transverse dimension of a felt not overlapped by an adjacent felt in a built-up roof membrane.  Correct felt exposure in a shingled, built-up membrane is computed by dividing the felt width minus 2 in. by the number of plies - e.g., for four plies

of 36-inch-wide felt, exposure = 36-2/4 = 8 1/2 inches.

Fabric.  Woven cloth of organic or inorganic filaments, threads, or yarns.

Fallback.  Reduction in bitumen softening point, sometimes caused by refluxing or overheating in a closed container.

Felt.  Flexible sheet manufactured by interlocking of fibers with a binder or through a combination of mechanical work, moisture, and heat.

Felt layer.  Spreader-type, wheel-mounted equipment for laying felt and simultaneously dispensing hot bitumen.

Finger wrinkling.  Wrinkling of exposed felts in small, finger- sized ridges parallel to the longitudinal direction of the felt roll, caused by transverse moisture expansion of the felt.

Fishmouth.  Membrane defect consisting of an opening in a membrane felt edge lap.

Flashing.  Connecting devices that seal membrane joints at walls, expansion joints, drains, gravel stops, and other places where

the membrane is interrupted.  Base flashing forms the upturned edges of the watertight membrane.  Cap or counterflashing shields the exposed edges and joints of base flashing.

Flashing cement.  A trowelable, plastic mixture of bitumen and asbestos (or other inorganic) reinforcing fibers, and a solvent (a stiffer, more sag-resistant material than plastic cement).

Flash point.  Temperature of combustible material, as oil, at which there is sufficient vaporization to support combustion of the vapor.

Flux.  Bituminous material used as a feed stock for further processing and as a material to soften other bituminous materials.

72