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/SA

Strawberry.  Small bubble in flood coat of gravel-surfaced membrane.

Stripping.  (1) The technique of sealing the joint between base flashing and membrane plies or between metal and roofing membrane with one or two plies of felt or fabric and hot- or cold-applied bitumen.  (2) The technique of taping joints between insulation boards or deck units.

Styrene-butadiene rubber.  High molecular weight emulsion polymers, cross-linked to maximize elasticity via copolymerization of styrene butadiene monomers, used as the modifying compound in some modified bitumen roofing membranes.

Styrene-butadiene-styrene copolymer (SBS).  High molecular weight emulsion polymers, with both elastomeric and thermoplastic properties, formed by the block copolymerization of styrene and butadiene monomers.  The tri-block copolymer formed has a mid- block of butadiene with end blocks of styrene in some modified bitumen single-ply membranes.

Tearoff.  Process of removing an existing roof system down to the structural deck.

Terne.  Terne metal, prime copper-bearing steel, coated both sides with terne alloy, 20% tin, 80% lead.  Terne metal is manufactured in a form of rolls in various widths and can be formed for standing seam roofs, batten seam roofs, and many types of flashing.

Thermal conductance (C-factor).  The time rate of heat flow through unit area of a body induced by a unit temperature difference between the body surfaces. See thermal resistance.

Thermal conductivity (k-factor).  The time rate of heat flow through unit thickness of a flat slab of a homogeneous material in the perpendicular direction to the slab surfaces induced by unit temperature gradient.

Thermal insulation.  Material used on walls, ceilings, roofs and floors to retard the passage of heat.

Thermal resistance.  Under steady conditions, the mean temperature difference between two defined surfaces of material or construction that induces unit heat flow through unit area. Note:  Thermal resistance and thermal conductance are reciprocals. Thermal resistances are R-values; to obtain the U-

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