Glossary

Mansard roof: A roof with two sloping planes of different pitch on each of its four sides. The lower plane is steeper than the upper, and may be almost vertical. See also gambrel roof.

Manufactured Wood: A wood product such as a truss, beam, Glue Lam TM or joist which is manufactured out of smaller wood pieces and glued or mechanically fastened to form a larger piece. Often used to create a stronger member which may use less wood. See also Oriented Strand Board.

Manufacturers Specifications: The written installation and/or maintenance instructions which are developed by the manufacturer of a product and which may have to be followed in order to maintain the product warrantee.

Masonry primer: An asphalt-based primer used to prepare masonry surfaces for bonding with other asphalt products.

Mastic: An adhesive putty material used as a sealant for plumbing or as a seal when waterproofing a foundation wall.  An adhesive used to fasten ceramic tile in non wet areas.

Millwork: All building materials made of finished wood.

Mineral stabilizers: Finely ground limestone, slate, trap rock or other inert materials added to asphalt coatings for durability and increased resistance to fire and weathering.

Miter joint: An angled or square cut joint of two pieces of wood used either to join or turn wood.

Mineral-surfaced roofing: Asphalt shingles and roll roofing that are covered with granules.

Mobile Home Aluminum Roof Coating: Durable one-coat application prolongs the life of mobile home roofs while reflecting sun's rays and providing a decorative surface. Reduces energy costs.

Modified Bitumen roof: A roof covering that is typically composed of a factory-fabricated composite sheet consisting of a copolymer-modified bitumen, often reinforced with polyester and/or fiberglass, and installed in one or more plies. The membrane is commonly surfaced with field-applied coatings, factory-applied granules or metal foil. The roofing system may incorporate rigid insulation.

Mortise:  A rectangular slot that has been cut into a piece of wood that another piece of wood is to be inserted into to form a locking joint.  A cutout for hinges or door strikes.