a method of asphalt shingle application, also referred to as the straight-up method, whereby shingle courses are applied vertically, up the roof rather than laterally or across and up.
one of a series of sloped structural members, that extend from the ridge or hip to the down slope perimeter or eave, designed to support the roof deck and its associated loads.
The repair of selected isolated portions of the roof system to return the roof to uniform condition. This normally involves the removal of wet materials along with correction of the original cause of the problem.
a small tapered/sloped roof area structure that helps to channel surface water to drains. Frequently located in a valley. A saddle is often constructed like a small hip roof or pyramid with a diamond-shaped base.
Channel through parapet, designed for peripheral drainage of the roof, usually a safety overflow to limit accumulation of ponded rainwater caused by clogged drains.
a material that has the adhesive and cohesive properties to form a seal;
a mixture of polymers, fillers, and pigments used to fill and seal joints where moderate movements is expected; unlike caulking, it cures to a resilient solid.
A fastener that forms receiving threads when turned into a previously drilled hole. It is for attaching panels to purlins and girts and for connecting trim and flashing.
A form of plastic or rubber in which the thickness is very small in proportion to length and width and in which the polymer compound is present as a continuous phase throughout, with or without fabric.
a small unit of prepared roofing designed for installation with similar units in overlapping rows or courses on inclines normally exceeding 3:12 slope (14°);
to cover with shingles;
to apply any sheet material in succeeding overlapping rows like shingles.
the procedure laying parallel felts so that one longitudinal edge of each felt overlaps and the other longitudinal edge underlaps an adjacent felt. Normally felts are shingled on a slope so that water flows over rather than against each lap.
a class of commercial roofing membranes. Flexible sheets of compounded synthetic materials that are manufactured in a factory to strict quality control requirements.
in metal roofing, a type of seam between adjacent sheets of material made by turning up the edges of two adjacent metal panels and then folding or interlocking them in a variety of ways.
Synthetic slate is a concrete mix that is lighter and smoother than real slate but that has some of the color and ageing properties that slate has. It is generally used for slate roof shingles, but can also be used for kitchen countertops.
a brown or black bituminous material, liquid or semi-solid in consistency, in which the predominating constituents are bitumens obtained as condensates in the processing of coal, petroleum, oil-shale, wood, or other organic materials.
A water-resistant membrane or material assembly extending totally through a wall and its cavities, positioned to direct any water within the wall to the exterior.