Here is a closer look at common roofing terms.
Roof members terminology.
They do for the roof what the joists do for the floor and what the studs do for the wall.
It is a waterproofing layer made of regular felt stacked above the solid.
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A low slope or flat seeming roof covered with alternating layers of roofing felt and hot mapped asphalt and topped off with a layer of gravel.
Common rafter valley rafter valley jack rafter hip rafter hip jack rafter cripple jack rafter dormer rafter.
A horizontal member that establishes the lower edge of a truss usually carrying combined tension and bending stresses.
2 part of a flat roof structure that receives the ends of the flat roof joists.
Dormer a vertical window built into the slope of a pitched roof.
Slight vertical cut on the outside edge of truss bottom chord to make sure uniform nominal span typically 1 4 inch cantilever.
3 part of a suspended timber floor construction that provides a level bearing and.
They vary in size depending on their length and spacing.
Below are some commonly used terms that identify parts of a roof and types of roofing.
The members making up the main body of the framework of all roofs are called rafters.
It is a type of resistant moulding that prevents water flowing near roof openings from infiltrating the roof.
Don vandervort hometips.
When working on a roof it pays to be familiar with these terms.
Flashing is found in valleys and at the bases of chimneys walls roof vents and plumbing vents.
Fascia the vertical board secured to the ends of the rafters under the lower end of the roof to which the guttering is normally fixed traditionally timber nowadays usually upvc.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
Collar ties rafter ties structural ridge beams.
That part of a roofing waterproofing or flashing component that overlaps or covers any portion of the same or.
A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.
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A condition where both the top and bottom chords extend beyond a support structure with no bearing at the extended end.
The exposed end of a shingle.
An asphalt based roof cement formulated to adhere overlapping plies or asphalt roll roofing.
The portion of the roof projecting out from the side walls of the house.
The edge of a roof which runs from eaves to ridge at a gable.
Rafters are inclined members spaced from 16 to 48 inches apart.
As you can see in the illustration below roofs have hip rafters ridge boards jack rafters and more.
Made of fibreglass and asphalt shingles protect the roof from rain and lend a house character.
