Glossary

A building envelope is the assembly of exterior elements, including roofing, siding, and insulation, designed to protect a structure from the outside elements, such as weather, moisture, and temperature fluctuations.

Metal strips or sheets used to prevent water from entering the joint between a chimney and the roof.

The decorative molding or overhanging section of a roof, typically located along the eave.

A metal strip installed along the edges of a roof to direct water away from the fascia and prevent water damage.

The lower edge of a roof that overhangs the exterior wall.

A flat surface or side of a structure, often referring to individual sections of a roof.

The horizontal board running along the edge of the roof, typically where the gutters are attached.

A layer of asphalt-saturated material applied to the roof deck before installing shingles or other roofing materials.

The triangular part of a wall between the edges of a sloping roof.

An intake or exhaust vent located in the outside walls of the attic on the “gable end.”

A roof with two slopes on each side, where the lower slope is steeper than the upper slope.

The external angle formed by the meeting of two sloping sides of a roof, typically on a house with four sloping sides.

The formation of ice along the eaves of a roof, causing water to pool and potentially allowing moisture to enter.

The overlap of one roofing material over another, such as the overlap of shingles or siding.

A roof with four slopes, where each side has two slopes – a steep lower slope and a shallower upper slope.

A low wall along the edge of a roof, terrace, or balcony, typically for protection or decoration.

The highest point on a roof where two slopes meet; also known as the ridge.

The incline or slant of a roof surface, expressed as a ratio or percentage.

One of the sloping beams that supports the roof structure, extending from the eave to the ridge.

The inclined edge of a roof over a gable end, opposite the eave.

The horizontal line where two sloping roof surfaces meet.

An exhaust vent installed at the peak of a sloped roof, allowing air to escape.

The boards or panels that cover the roof’s structural framing, providing a base for roofing materials.

The outer covering or cladding of a building’s walls, often installed to protect against weather elements.

The angle or slope of a roof, indiciating its steepness.

The underside of the eave, often enclosed to protect the rafters and provide ventilation.

The foundational surface on which exterior layers are applied for structural support and durability.

A framework of beams forming the structure of a roof, typically triangular in shape for stability.

A material laid beneath roofing materials to provide additional protection against weather elements.

The boards or panels that cover the roof’s structural framing, providing a base for roofing materials.

A layer of material that prevents the passage of moisture through the roof, helping to control condensation.

Material used to seal gaps around windows, doors, and other openings, enhancing a building’s weatherproofing.

A type of flashing shaped like a “Z” used to prevent water infiltration at horizontal joints or transitions in the roof.