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Roofing Terms
Roofing Terms – Why Homeowners Should Be Familiar with Them Before Hiring a Roofing Contractor
As a homeowner, your roof plays a crucial role in protecting your home and your family from the elements. Hiring a skilled roofing contractor is essential when it’s time for a roof repair or replacement. However, before signing a contract, it’s important to understand basic roofing terms. This knowledge will empower you to make informed decisions and ensure that you get the best value for your investment.
Here are several reasons why being familiar with roofing terms is vital before hiring a roofing contractor:
- Improved Communication with the Contractor
Understanding roofing terms allows you to have more productive conversations with potential contractors. This knowledge will help you discuss your needs, preferences, and expectations more clearly, making it easier for the contractor to deliver the results you want. It will also help you understand their recommendations, ensuring that their proposed roofing solutions align with your requirements.
- Making Informed Decisions
When you’re familiar with roofing terms, you can make better decisions about your project’s materials, methods, and costs. For instance, knowing the difference between asphalt shingles, metal roofing, and slate will help you choose the most suitable option for your home based on factors such as durability, maintenance, and energy efficiency. This understanding will also help you evaluate the pros and cons of different underlayment types, ventilation systems, and flashing materials.
- Evaluating Quotes and Contracts
Homeowners who understand roofing terms can more easily evaluate and compare quotes from different contractors. This knowledge lets you spot discrepancies in material costs, labor charges, and warranties, ensuring you’re getting a fair deal. Additionally, understanding the terminology used in contracts will help you identify any potential issues or hidden fees before signing.
- Identifying Quality Workmanship
Knowing basic roofing terms will also help you assess the quality of work done by your contractor. You’ll be able to recognize the proper installation of underlayment, flashing, and ventilation systems, ensuring that your roof is built to withstand harsh weather conditions and provide optimal energy efficiency. This understanding will also allow you to spot potential issues during the project, enabling you to address them with the contractor before they become major problems.
- Ensuring Proper Maintenance
A well-maintained roof can last for decades but requires regular inspections and timely repairs. By being familiar with roofing terms, you’ll be better equipped to identify potential problems during routine maintenance checks, such as damaged shingles, clogged gutters, or deteriorating flashing. This knowledge will help you address these issues.
Roofing Terms Glossary for Homeowner Empowerment
Term | Definition |
1. Asphalt shingles | A popular roofing material made from fiberglass or organic materials, coated with asphalt and mineral granules. |
2. Built-up roof (BUR) | A roofing system composed of multiple layers of reinforcing materials, such as asphalt, felt, or ply sheets. |
3. Cricket | A small, elevated structure built to divert water away from chimneys, walls, or other roof penetrations. |
4. Drip edge | A metal flashing installed at the edge of a roof to direct water away from the fascia and protect the underlying materials. |
5. Eave | The horizontal, lower edge of a sloped roof that extends beyond the building’s exterior walls. |
6. Fascia | A vertical, wooden or metal board that covers the ends of rafters and serves as a mounting point for gutters. |
7. Gable | The triangular portion of a wall that encloses the end of a pitched roof, from the eave to the ridge. |
8. Hip | The external angle formed by the intersection of two sloping roof planes. |
9. Ice and water shield | A self-adhesive waterproofing membrane installed on vulnerable roof areas to protect against ice dams and water infiltration. |
10. Joist | A horizontal structural member that supports a roof deck or ceiling. |
11. Kick-out flashing | A small piece of flashing used to direct water away from a wall or other vertical surface where a roof terminates. |
12. Ladder jack | A temporary support bracket used for scaffolding during roofing work. |
13. Membrane | A continuous, flexible material used to waterproof a roof surface. |
14. Nailer | A horizontal board or strip that serves as a nailing surface for roof sheathing or decking. |
15. Open valley | A method of valley construction in which the shingles on each side of the valley are trimmed, leaving a gap where water can flow. |
16. Pitch | The slope or steepness of a roof, expressed as a ratio of vertical rise to horizontal run. |
17. Quoin | Decorative masonry or woodwork at the corner of a building, often used to provide visual interest and support for roofing materials. |
18. Rafter | A structural member that extends from the ridge of a roof to its eave, providing support for the roof deck. |
19. Sheathing | The structural panels or boards installed over rafters to provide a nailing surface for roofing materials. |
20. Truss | A prefabricated structural framework that supports a roof, typically composed of triangular components. |
21. Underlayment | A layer of material, typically felt or synthetic, installed between the roof deck and the roofing material to provide an additional layer of protection. |
22. Valley | The internal angle formed by the intersection of two sloping roof planes. |
23. Vent pipe | A pipe that allows the release of gases or moisture from inside a building to the exterior. |
24. Waterproofing | The process of making a structure resistant to water infiltration, often through the use of membranes, sealants, or coatings. |
25. Xactimate | A widely-used software program for estimating the cost of roofing and other construction projects. |
26. Z-bar flashing | A type of flashing that has a Z-shaped profile, used to create a watertight transition between roofing materials and vertical surfaces. |
27. Gutter | A trough-like structure that collects and directs rainwater away |
28. Downspout | A vertical pipe that carries rainwater from a gutter to the ground or a drainage system. |
29. Ridge cap | A finishing material installed along the ridge of a roof to cover the joint between two sloping roof planes. |
30. Soffit | The underside of a roof overhang, often vented to provide air circulation in the attic. |
31. Flashing | Thin metal or other material used to seal and protect joints, seams, or other roof penetrations. |
32. Roofing square | A unit of measurement for roof area, equal to 100 square feet (9.29 square meters). |
33. Roof deck | The structural surface, usually plywood or oriented strand board (OSB), to which roofing materials are applied. |
34. Granules | Small, mineral-coated particles used on the surface of asphalt shingles to protect against UV rays and weathering. |
35. Dormer | A structural projection from a sloping roof that contains a window or vent, typically used to increase usable space or improve aesthetics. |
36. Felt paper | A heavy, asphalt-impregnated paper used as an underlayment in roofing applications. |
37. Roof penetration | Any object that passes through the roof, such as a chimney, vent pipe, or skylight. |
38. Ridge vent | A continuous vent installed along the peak of a roof to allow for attic ventilation. |
39. Roofing nails | Specialized nails used to secure roofing materials, often featuring a large, flat head and a barbed or ring shank for improved holding power. |
40. Slate | A natural stone material used for roofing, known for its durability and long lifespan. |
41. Tar | A viscous, waterproof substance derived from coal or petroleum, used in some roofing applications as a sealant or adhesive. |
42. Elastomeric coating | A flexible, rubber-like coating applied to roofing surfaces to provide waterproofing and reflectivity. |
43. Saddle | A raised, watertight structure built around a roof penetration to divert water and prevent leaks. |
44. Roofing cement | A durable, adhesive compound used to seal and repair roofing materials. |
45. Metal roofing | A type of roofing material made from metal panels or shingles, valued for its durability, low maintenance, and energy efficiency. |
46. TPO (Thermoplastic Olefin) | A single-ply roofing membrane made from a blend of plastic and rubber materials, used for flat or low-slope roofs. |
47. EPDM (Ethylene Propylene Diene Monomer) | A synthetic rubber roofing membrane commonly used for low-slope or flat roofs. |
48. Roofing felt | A heavy, water-resistant paper or synthetic fabric used as an underlayment beneath roofing materials. |
49. Roofing seam | A joint between two adjacent roofing materials, often sealed with adhesive or flashing. |
50. Roof anchor | A secure attachment point installed on a roof, used as a safety device for workers to tie off and prevent falls. |
Additional Terms
Asphalt | A sticky, black, semi-solid form of petroleum used as a waterproofing and binding agent in various roofing materials. |
Built-Up Roof (BUR) | A type of roofing system that consists of alternating layers of roofing felt and hot asphalt or coal tar pitch, usually topped with gravel. |
Deck | The structural surface to which the roofing system is applied, typically made of plywood, OSB, or metal. |
Drip Edge | A metal strip installed along the edge of a roof to help control water runoff and protect the underlying roofing components. |
Eave | The lower edge of a roof that extends beyond the building’s exterior walls. |
Fascia | The horizontal, outward-facing board that covers the ends of the roof’s rafters or trusses. |
Flashing | Thin pieces of metal used to prevent water penetration by sealing joints and transitions in a roof system. |
Gable | The triangular section of a wall that encloses the end of a pitched roof. |
Gutter | A channel installed along the eaves or roof edge to collect and divert rainwater away from the building. |
Hip | The external angle formed by the intersection of two sloping roof planes. |
Ice Dam | A buildup of ice at the lower edge of a sloped roof, which can cause water to back up and seep under roofing materials. |
Insulation | Material used to reduce heat transfer and improve energy efficiency in a building. |
Membrane | A thin, flexible sheet used as a waterproofing layer in a roofing system. |
Pitch | The slope or steepness of a roof, usually expressed as a ratio of the rise to the run. |
Ridge | The horizontal line formed by the intersection of two sloping roof surfaces at the highest point of the roof. |
Shingles | Overlapping pieces of material, such as asphalt, wood, or metal, used to cover a roof. |
Soffit | The underside of a roof overhang or eave. |
Underlayment | A layer of material, typically felt or synthetic, installed between the roof deck and the outer roofing material. |
Valley | The internal angle formed by the intersection of two sloping roof planes. |
Vapor Retarder | A material designed to restrict the passage of water vapor through a roof system or wall. |
Vent | Any device installed on the roof, gable, or soffit for the purpose of ventilating the underside of the roof deck. |
Ventilation | The process of supplying a continuous supply of air through the attic space to help remove heat and moisture. |
Warranty | A statement made by the manufacturer of a product, typically covering defects in materials and/or workmanship for a specified period of time. |
Waterproofing | The process of making a building resistant to the penetration of water. |
Weather Stopper System | A complete roofing system using compatible components from a single manufacturer that are designed and tested to work together to protect a building from water infiltration and other weather-related damage. |
Weep Holes | Small openings in a retaining wall or other structure to allow water to escape and relieve pressure. |
Wind Resistance | The ability of a roofing material to withstand wind forces. |
Zinc Strips | Narrow strips of zinc used along the ridge and hips of a roof to inhibit the growth of algae and moss. |

List of Most Common Roofing Materials Per Region in the United States.
Northeast | 1. Asphalt Shingles |
2. Metal Roofing | |
3. Slate Roofing | |
4. Wood Shingles and Shakes | |
5. EPDM (Rubber) Roofing | |
Southeast | 1. Asphalt Shingles |
2. Metal Roofing | |
3. Clay and Concrete Tile | |
4. Wood Shingles and Shakes | |
5. TPO and PVC Roofing | |
Midwest | 1. Asphalt Shingles |
2. Metal Roofing | |
3. Wood Shingles and Shakes | |
4. Slate Roofing | |
5. Built-Up Roofing (BUR) | |
Southwest | 1. Asphalt Shingles |
2. Metal Roofing | |
3. Clay and Concrete Tile | |
4. TPO and PVC Roofing | |
5. Built-Up Roofing (BUR) | |
West Coast | 1. Asphalt Shingles |
2. Metal Roofing | |
3. Clay and Concrete Tile | |
4. Wood Shingles and Shakes | |
5. TPO and PVC Roofing |
Please note that the popularity of specific roofing materials may vary within regions and localities. This list provides a general overview of common roofing materials in the United States by region.
Roofing Q& A
- What are roofing terms?
Roofing terms are words or phrases used to describe various aspects of a roof, structure, and components. Understanding these terms can help property owners make informed decisions about their roofing needs.
- What are the parts of a roof called?
The main parts of a roof include the roof decking, underlayment, roof covering, eaves, valleys, ridges, vents, flashings, and gutters.
- What are the 3 main types of roofs?
The three main types of roofs are flat roofs, low-slope roofs, and steep-slope roofs. Each type serves a specific purpose, and the appropriate choice depends on factors like climate, building design, and aesthetics.
- What are the 4 most common types of roofs?
The four most common types of roofs are asphalt shingle roofs, metal roofs, clay and concrete tile roofs, and wood shake roofs.
- What are the 6 roof parts?
The six essential roof parts include the roof deck, underlayment, roof covering, flashings, gutters, and ventilation.
- What are the four main parts of a roof?
The four main parts of a roof are the roof decking, underlayment, roof covering, and roof structure (including trusses and rafters).
- What are the 10 distinct roof types?
The ten distinct roof types include gable, hip, mansard, gambrel, flat, shed, butterfly, bonnet, saltbox, and dome roofs.
- What is a sloped roof called?
A sloped roof is called a pitched roof. Pitched roofs have a noticeable slope and are designed to shed water and snow more effectively than flat roofs.
- What type of roof is strongest?
The strongest roof type is often considered to be the hip roof, as its design provides increased stability and resistance to wind compared to other roof types. However, the strength of a roof also depends on the quality of its materials and construction.
- What are the 8 components of a roof?
The eight components of a roof include the roof deck, underlayment, roof covering, flashings, ventilation, insulation, eaves, and gutters.
- What are roof fixtures called?
Roof fixtures are called roof penetrations, which include items like vents, pipes, chimneys, and skylights that protrude through the roof surface.
- What are the top things on a roof called?
The top features on a roof are called ridge caps or ridge tiles. These elements cover the ridge of a roof, where two roof planes meet, to prevent water and debris from entering the roof structure.
By understanding these roofing concepts, property owners can make informed decisions when selecting a roofing system, performing maintenance, or choosing a contractor.
In conclusion, understanding roofing terms is valuable for homeowners seeking to hire a roofing contractor. This knowledge will improve communication, enable informed decision-making, help evaluate quotes and contracts, identify quality workmanship, and ensure proper maintenance. Before embarking on your next roofing project, take the time to familiarize yourself with basic roofing terms and concepts. This investment in your knowledge will pay dividends in the long run, ensuring that your home is protected by a high-quality, durable, and efficient roofing system.