| Manufacturer's Bond |
a security
company's guarantee that it will stand behind a manufacturer's
liability to finance membrane repairs occasioned
by ordinary wear within a period generally limited
to 5, 10, 15, or 20 years.
|
| Mastic |
see FLASHING
CEMENT or ASPHALT
MASTIC. |
| Mechanically Fastened Membranes |
membranes attached at defined intervals
to the substrate. |
| Membrane |
a flexible or semi-flexible roof
covering or waterproofing layer, whose primary function
is the exclusion of water. |
| Metal Flashing |
see FLASHING; metal flashing
is frequently used as through wall flashing, cap flashing,
counterflashing or gravel stops. |
| Mildew |
a superficial coating or discoloring
of an organic material due to fungal growth. |
| Mineral Fiber Felt |
a felt with mineral wool as its
principal component. |
| Mineral Granules |
opaque, natural, or synthetically
colored aggregate commonly used to surface cap
sheets, granule-surfaced sheets, and roofing shingles. |
| Mineral Stabilizer |
a fine, water-insoluble inorganic
material, used in a mixture with solid or semi solid
bituminous materials. |
| Mineral Surfaced Roofing |
built up roofing material whose
top ply consists of granule surfaced sheet. |
| Mineral Surfaced Sheet |
a felt that is coated on one
or both sides with asphalt and surfaced with mineral
granules. |
| Modified Bitumen |
composite sheets consisting of
a polymer (e.g., atactic polypropylene (APP), or styrene
butadiene styrene (SBS)) often reinforced and sometimes
surfaced with various types of mats, films, foils and
mineral granules. |
| Moisture Relief Vent |
venting device through the roofing
membrane to relieve moisture vapor pressure from within
the roof assembly. |
| Mole Run |
a meandering ridge in a roof
membrane not associated with insulation or deck joints. |
| Mop and Flop |
an application procedure in which
roofing elements (insulation boards, felt plies, cap
sheets, etc. are initially placed upside down adjacent
to their ultimate locations, are coated with adhesive
and are then turned over and applied to the substrate. |
| Mopping |
an application of hot bitumen
applied to the substrate or to the felts of a built
up roof membrane with a mop or mechanical applicator. |
| Solid Mopping |
a continuous mopping of a surface,
leaving no unmopped areas. |
| Spot Mopping |
a mopping pattern in which hot
bitumen is applied in roughly circular areas, leaving
a grid of unmopped, perpendicular bands on the roof. |
| Strip Mopping |
a mopping pattern in which hot
bitumen is applied in parallel bands. |
| Mud Cracking |
surface cracking of surface material
resembling dried cracked earthen mud. |
