A steeply angled roof structure that forms an "A" shape, commonly used in cabins and some Southern home designs.
The ability of a roofing material to soak up moisture, which can affect durability in humid Southeastern climates.
A testing process used to simulate long-term exposure to sun, rain, and wind, important for roofing materials in the South.
Acrylic coating is a water-based, reflective coating made from acrylic polymers that is applied to roofing systems to protect against UV rays, extend roof life, and improve energy efficiency.
Small crushed stone, gravel, or slag used as a surface layer in built-up roofing (BUR) to protect from weathering.
Cracking patterns on a roof’s surface that resemble alligator skin, often due to prolonged sun exposure in hot climates.
A feature of some roofing materials that prevents algae growth, which is a common issue in humid regions.
Thin aluminum sheets used to prevent water penetration at roof joints, commonly used in metal roofing and chimney flashing.
A type of flashing used where a vertical surface meets a sloped roof, such as at chimneys or dormers.
High-quality asphalt shingles with a dimensional look, popular in the Southeast for their durability and aesthetic appeal.
A waterproofing agent used in shingles and other roofing materials, ideal for resisting moisture in the humid climate.
A type of underlayment made of fiberglass or organic material saturated with asphalt, providing a moisture barrier under shingles.
A system that allows airflow in the attic to regulate temperature and moisture, crucial for preventing mold and heat buildup in homes.
The process of nailing roofing materials from the backside to improve wind resistance, important for hurricane-prone areas in the Southeast.
A layer of heavy material, such as gravel or stone, used to stabilize roofing systems, often seen in flat commercial roofs.
A curved, half-cylinder-shaped clay or concrete tile commonly used in Mediterranean and Spanish-style homes in the South.
The portion of flashing attached to a roof deck to prevent water intrusion, especially around walls and chimneys.
Thin strips of wood or metal used to secure roofing materials, particularly for tile or metal roofs in the Southeastern U.S.
A petroleum-based material used in built-up and modified bitumen roofing systems, known for its waterproofing properties.
Bubbles or raised areas on a roof surface caused by moisture or heat exposure, a common issue in the hot and humid Southeastern climate.
A flexible, waterproof cover placed around vent pipes or other roof penetrations to prevent leaks.
A concealed gutter system built into the roof structure, often used in historic Southern homes and commercial buildings.
A condition where roofing materials do not lay flat due to movement or improper installation, which can lead to leaks.
A multi-layered roofing system made of asphalt, felt, and gravel, commonly used in commercial and low-slope roofs.
The lower edge of a shingle, visible when installed, which should align evenly for proper water runoff.
A metal covering placed over base flashing or walls to prevent water intrusion, commonly used around chimneys and roof edges.
A heavy, top-layer material used in built-up and modified bitumen roofing systems to enhance durability and waterproofing.
A narrow walkway installed on a steep roof to provide safe access for maintenance and inspections.
A waterproof sealant used to fill gaps in flashing, vents, and other roof penetrations to prevent leaks.
A natural wood roofing material made from split cedar logs, popular in rustic and historic Southern homes.
A straight, temporary guideline made with chalked string, used for aligning shingles and roofing materials.
A small, sloped structure installed behind a chimney to divert water and prevent pooling, essential for leak prevention.
A roof design featuring vertical windows between sloped sections, often seen in Southern homes to allow for natural light and ventilation.
A method of installing shingles in a roof valley where one side overlaps the other, providing a clean and durable water runoff system.
Protective layers applied to roofing materials to improve durability, reflect UV rays, and resist water damage—commonly used on metal and flat roofs.
A horizontal beam connecting two opposite rafters to add strength and stability to the roof structure.
A roofing system designed to reflect sunlight and absorb less heat, reducing cooling costs, especially beneficial in the hot Southeastern climate.
A secondary layer of flashing that covers base flashing to provide additional waterproofing, often used around chimneys and walls.
A single row of shingles or other roofing materials running horizontally across the roof.
A small, dome-like structure on a roof, often for ventilation or aesthetic purposes, seen in traditional Southern architecture.
The space between shingle tabs on a traditional 3-tab asphalt shingle, allowing for proper water runoff.
A treatment applied to roofing materials to resist moisture penetration, especially important in humid Southern climates.
The permanent weight of a roof structure, including roofing materials, decking, and insulation, but not temporary loads like snow or maintenance workers.
The structural base layer of a roof, typically made of plywood or OSB (oriented strand board), onto which underlayment and shingles are installed.
The bending or sagging of roof components due to weight or structural stress, which can be an issue in older Southern homes with heavy roofing materials.
A small, vertical window and roof extension that protrudes from a sloped roof, commonly used in traditional Southern and colonial-style homes.
A metal flashing installed along the edges of a roof to direct water away from the fascia and prevent damage to the roof deck.
A combination of a gable and hip roof, often seen in Southern home designs, providing both attic ventilation and wind resistance.
A type of metal roofing system with interlocking seams, offering superior weather resistance, commonly used in hurricane-prone areas of the Southeast.
A vertical pipe attached to gutters that directs rainwater away from the foundation, essential for preventing water damage in heavy-rain regions.
A term used to indicate that a roof has been covered with underlayment and is temporarily waterproof but not yet fully completed with shingles or other materials.
The slope and design of a roof that allows water to run off efficiently, crucial for preventing water pooling and leaks.
The separation of layers in roofing materials, such as shingles or plywood, often caused by prolonged exposure to heat and moisture in Southern climates.
The lower edge of a roof that extends beyond the exterior walls, helping direct rainwater away from the home’s foundation.
A waterproof material installed along the eaves to prevent ice dams and water damage, especially important in areas with occasional freezing temperatures.
Metal flashing installed along the perimeter of a roof to provide additional protection against wind and water intrusion.
A white, powdery residue that can form on concrete, clay, or masonry roofing materials due to moisture evaporation.
A flexible, rubber-like roof coating that expands and contracts with temperature changes, commonly used on flat and metal roofs in the Southeast.
A durable, synthetic rubber roofing material commonly used for commercial and low-slope roofs due to its resistance to heat and UV rays.
The portion of a roofing material (such as a shingle) that remains visible and exposed to the elements after installation.
A small, curved dormer that blends into the roofline, often seen in historic Southern homes for added architectural detail.
Roofing materials that meet U.S. EPA guidelines for energy efficiency, helping reduce cooling costs in the hot Southeastern climate.
The vertical board running along the edge of the roof, usually where gutters are attached. It helps support the roof edge and protects the rafters from moisture damage—especially important in the rainy Southeastern climate.
Nails, screws, or clips used to secure roofing materials. In hurricane-prone Southeastern states, fasteners must meet specific wind uplift ratings for safety and code compliance.
A layer of paper or synthetic material saturated with asphalt, used under shingles as a moisture barrier—commonly used in Southern homes to protect against heavy rain.
The main or central area of the roof surface, excluding edges, ridges, and valleys.
Thin sheets of metal (aluminum, copper, or galvanized steel) installed to direct water away from seams, joints, and roof penetrations (like chimneys or vents). Flashing is crucial in the South due to frequent downpours.
A roof with a very low slope, often used in commercial buildings across the Southeast. Requires special drainage systems and waterproof membranes due to standing water risk.
A durable roofing sealant used to adhere flashing or patch small roof areas, especially in emergency leak repairs.
A flat metal extension on flashing, vents, or boots that provides a surface for secure attachment and waterproof sealing.
The outward bending or shaping of flashing or metal roof panels to prevent water intrusion—commonly seen around wall intersections and chimneys.
A feature of some roofing materials (like algae-resistant shingles) that helps prevent the growth of mold, mildew, or algae—a common problem in the humid Southeastern U.S.
Classification that indicates a roofing material's ability to resist fire. In areas of the Southeast where wildfires or lightning storms are a risk, choosing a roof with a high fire rating is a smart safety measure.
The triangular upper portion of a wall at the end of a ridged roof. Gable roofs are very common in the Southeast due to their ability to shed rain quickly and provide good attic ventilation.
A vent located at the peak of a gable to promote airflow in the attic. Helps reduce heat and humidity buildup—essential in hot, humid Southern climates.
Steel coated with a layer of zinc to prevent rust. Frequently used in flashing, gutters, and metal roofing systems across the Southeast due to its corrosion resistance.
A roof design with two slopes on each side—steeper on the lower slope and flatter on top—common in Southern barns and Colonial-style homes for added attic space.
Crushed stone particles embedded on the surface of asphalt shingles to protect against UV rays, enhance durability, and improve fire resistance.
A metal edge installed on flat or low-slope roofs to prevent gravel surfacing from washing off. Helps maintain roof integrity in high-rainfall areas of the Southeast.
A roofing system partially or completely covered with vegetation. While not common in traditional Southern residential homes, they’re becoming more popular in urban or eco-conscious commercial buildings.
A trough system that collects and channels rainwater from the roof edge to downspouts. Vital in the Southeastern U.S. where sudden heavy rain can cause water damage without proper drainage.
A type of flashing that directs water from the roof into the gutter and prevents it from seeping behind the gutter, protecting fascia boards from rot.
Refers to the quality level of roofing materials (e.g., "architectural grade shingles"). In the Southeast, higher-grade materials are preferred for durability under harsh sun and heavy rain.
A method of joining roofing membranes using hot air or open flame. Often used on flat or low-slope commercial roofs in the Southeast, especially for TPO or modified bitumen systems.
A roof with slopes on all four sides, which converge at the top to form a ridge. This design is popular in the Southeast for its aerodynamic shape, offering better wind resistance—especially important in hurricane-prone areas.
Shingles specifically designed to cover the hips (sloped ridges) of a roof. They add durability and a clean, finished look.
Shingles rated and tested to withstand strong winds. Essential in Southeastern states like Florida, Georgia, and the Carolinas where tropical storms and hurricanes are common.
A process where hot asphalt is applied to layers of felt and aggregate on flat or low-slope roofs. Still seen in some older commercial roofing systems in the Southeast.
The portion of a shingle that is covered by the shingles above it. Proper headlap is critical to prevent water intrusion in regions with heavy rainfall.
The movement of heat through roofing materials into the attic or home. In the hot Southeastern climate, reflective or insulated roofing materials help reduce heat transfer and lower energy bills.
Refers to roofing materials or systems specifically suited for high-humidity areas like the Southeast—such as algae-resistant shingles and proper attic ventilation systems.
Protective gear used by roofers to prevent falls. Especially important when working on steep residential roofs or in the often slick, humid conditions common in the Southeast.
Dents, bruises, or cracks in roofing materials caused by hailstorms. While more common in some inland areas of the Southeast, it’s a key concern when choosing impact-rated roofing products.
A self-adhering waterproof underlayment installed along eaves, valleys, and other vulnerable areas to prevent water infiltration. While not always essential in the warmer parts of the Southeast, it’s often used in elevated or mountainous areas (like parts of East Tennessee or North Carolina) that occasionally experience ice or snow.
Shingles specially manufactured to withstand hail and flying debris. These are popular in Southeastern areas that experience severe thunderstorms, hail, or high winds.
Vents located at the lower part of a roof (typically in soffits or eaves) that allow cooler outside air to enter the attic. Crucial in the hot and humid Southeast for balanced attic ventilation and energy efficiency.
Material used to reduce heat transfer between the roof and the interior of a building. In the Southeastern climate, proper insulation—especially in the attic—helps maintain cooler indoor temperatures and reduces HVAC loads.
A buildup of ice at the roof’s edge that prevents proper drainage. Though rare in most of the Southeast, this can occur in elevated regions with freezing temps. Proper insulation and ventilation help prevent this.
A non-invasive method of detecting moisture under roofing materials using thermal imaging. Often used in commercial roofing assessments, particularly in humid Southeastern regions where moisture intrusion is a major concern.
A roofing method where new shingles are installed over old ones. This is sometimes done for cost savings, though in humid Southern climates it’s generally better to tear off old roofing to prevent trapped moisture and mold growth.
Panels used in both residential and commercial roofing that offer built-in insulation. Ideal for metal roofs in the Southeast where solar heat gain is a big factor.
Specialized waterproofing membrane used in valleys where water flow is concentrated. Even in warmer Southeastern regions, valleys are vulnerable to water infiltration during heavy rainstorms.
Drainage systems built into flat commercial roofs to route water through internal piping. Important in the Southeast to handle intense downpours and prevent ponding water.
A metal or rubber boot used to seal around pipes or other penetrations in the roof. Commonly used in Southern homes where plumbing vents or HVAC lines pass through the roof—helps prevent leaks during heavy rain.
A horizontal framing member that supports a ceiling or floor. In roofing, ceiling joists help support the bottom of the roof structure. Proper joist spacing is critical for supporting roof loads, especially with heavy shingle or tile roofing used in Southern homes.
Part of a tool used in metal roofing to crimp or seal seams, especially in standing seam metal roof systems which are popular in coastal Southeastern regions due to their wind resistance and durability.
A type of caulking or mastic used to seal seams or joints between flashing, roof panels, or vents. In the Southeast, where thermal expansion and moisture are major concerns, high-quality sealants are essential to prevent leaks.
A trim component shaped like the letter 'J', often used around roof edges, siding, or soffits to hold and direct water away from openings. Frequently used in metal roofing and siding installations throughout the Southeast.
An irregular tear in roofing material, often caused by wind uplift or hail impact. Southeastern storms can be intense, and identifying jagged tears early helps avoid major water damage.
A metal bracket used to connect joists to beams or walls, providing structural support for roofs and ceilings. Important for homes in areas that require hurricane or seismic reinforcement.
A small but critical piece of flashing installed where a roof slope meets a vertical wall. It diverts water away from siding or stucco and into the gutter—especially important in the Southeast, where heavy rains can quickly lead to water intrusion behind walls if this is missing.
The most common type of residential gutter in the Southeast. Shaped like the letter “K” when viewed from the side, it holds more water than a half-round gutter and is effective for managing sudden downpours common in the region.
A short vertical wall, typically in attics, that supports the rafters in homes with steep roofs. Properly insulating and ventilating knee walls is important in the South to reduce heat buildup and protect roofing materials from warping.
A small groove or cut made in wood or masonry to insert flashing. Often used when installing flashing against brick chimneys or walls in Southern homes, where masonry is common in older or historical structures.
Lumber that has been dried in a kiln to reduce moisture content. In the humid Southeastern U.S., kiln-dried wood is preferred for roofing structures to prevent warping, mold, or rot.
A high-performance resin-based finish applied to metal roofing panels for enhanced color retention and UV resistance. Popular in coastal Southeastern regions (like the Carolinas and Florida) where roofs are exposed to intense sunlight and salty air.
The overlapping portion of roofing materials—such as underlayment, shingles, or metal panels—designed to shed water. Proper lap installation is crucial in the Southeast to handle heavy rainfall and wind-driven rain.
Also known as architectural shingles, these are multi-layered asphalt shingles that offer enhanced durability, dimension, and wind resistance. A top choice across the Southeast for aesthetic appeal and storm performance.
A flat section of roofing or transition area between roof slopes, often used near dormers or porches. Proper drainage is critical in these areas to avoid water pooling—common in older Southern homes.
A single-sloped roof that leans against an exterior wall. Found on porches, carports, or additions in many Southeastern homes, especially in rural areas.
The upward force of wind on roofing materials. In hurricane- and tornado-prone parts of the Southeast, materials must be rated to resist wind uplift to prevent shingles or panels from being blown off.
A structural support, typically made of steel or wood, that spans an opening like a door or window. While not a roofing component per se, it's involved in roof-to-wall transitions that require proper flashing to prevent leaks.
A roof with a pitch less than 3:12. More common in commercial buildings in the Southeast, these roofs require specialized materials like TPO, EPDM, or modified bitumen due to their poor drainage.
A vent with angled slats that allow air in while keeping water out. Common in gable vents and ridge vents in Southern homes to improve airflow and reduce attic heat and moisture.
A durable, moldable metal flashing used around chimneys or roof penetrations. Though less common in modern builds, it’s often found in historic homes across the Southeast.
Shingles that have been raised by wind, poor installation, or thermal expansion. In the Southeast, lifted shingles can lead to quick water intrusion during summer storms or hurricanes.
A four-sided roof with two slopes on each side—the lower slope is much steeper than the upper. Common in historic Southern architecture, especially in cities like Charleston and Savannah.
A single-ply or multi-layer system used mainly on low-slope or flat roofs. Materials like TPO, EPDM, or PVC are popular in the Southeast due to their durability and ability to handle ponding water and UV exposure.
A long-lasting and energy-efficient roofing system made from materials like steel, aluminum, or copper. Very popular in the Southeastern U.S. for its heat reflectivity, wind resistance, and longevity—especially in coastal areas.
An asphalt-based flat roofing material reinforced with modifiers like rubber or plastic. Common on commercial and low-slope roofs throughout the Southeast due to its durability and waterproofing abilities.
The granular surface layer applied to roofing products like asphalt shingles or rolled roofing. It provides UV protection, adds weight for wind resistance, and improves fire performance.
A layer of underlayment or other material that resists water infiltration. Critical in the humid Southeast to prevent rot, mold, and structural damage.
A process used in standing seam metal roofing where the seams are crimped or folded together using a mechanical tool. Provides superior wind and water resistance—ideal for storm-prone areas in the Southeast.
A type of mold that can grow on roofing materials in humid Southern climates. Often appears as black or green stains on asphalt shingles. Algae- and fungus-resistant shingles help prevent this issue.
A thick, adhesive roofing sealant used to patch roof penetrations or secure flashing. It’s particularly useful for quick repairs in emergency storm situations.
A popular brand of commercial low-slope roofing products, including TPO and modified bitumen systems, widely used in Southeastern commercial buildings.
A roofing nail that has worked its way up out of the decking over time, often causing a visible bump in shingles. This can lead to shingle damage or leaks if not addressed.
A pneumatic or electric tool used to drive nails into shingles, decking, or underlayment. Speeds up installation and ensures consistent nail depth and placement.
The surface to which roofing materials are fastened, usually plywood, OSB, or other structural sheathing.
The manufacturer-recommended layout for nailing roofing materials to ensure proper wind resistance and adherence to code. Varies depending on material and local regulations.
A rubber washer often used with metal roofing screws to seal penetrations and prevent leaks around fasteners.
A ridge cap or peak of a roof that does not allow for attic ventilation. Used in some situations where ventilation is handled through other systems or where a sealed attic design is used.
A re-roofing method where new shingles are installed between the existing ones (common with 3-tab shingles). Helps provide a flatter surface during overlays.
Shingles with solid tabs, without the traditional "cutouts" found in 3-tab shingles. They offer a more solid, dimensional appearance and are easier to install in some scenarios.
The exposed edge or lip of a roof component, such as drip edge or flashing, that directs water away from the structure.
A roofing method where the valley area (where two roof slopes meet) is left uncovered by shingles and protected only with metal flashing. It's an effective way to handle large water flow areas and is considered more durable in the long term.
A type of engineered wood made from compressed wood strands and resin. Commonly used as roof decking due to its affordability and strength.
The portion of the roof that extends beyond the exterior wall. It helps protect walls and windows from rain and provides shading to reduce heat gain.
Installing a new layer of shingles over an existing one without tearing off the old roof. While it saves time and money, it can reduce roof lifespan and may not meet building codes in some areas.
A small horizontal beam extending from a roof or wall to support an overhang or projection, such as eaves or gables.
A soffit (underside of an overhanging roof eave) that is not enclosed. Often paired with vented soffits to allow air to flow into the attic space.
A type of static attic vent installed near the ridge (but not directly on it). Provides ventilation to reduce heat and moisture buildup.
A visual waviness or distortion in metal panels, particularly in standing seam roofs. While mostly aesthetic, it can be more noticeable depending on lighting and roof color.
Nails that are driven too far into shingles or underlayment, possibly tearing the material or reducing holding strength. Commonly caused by improper air pressure settings on nail guns.
A measurement term used in construction to indicate the spacing between framing members (like rafters or trusses), measured from the center of one to the center of the next. Typical OC spacing for roof framing is 16" or 24".
A low wall extending above the edge of a flat roof. Common in commercial buildings, it provides fall protection, aesthetic appeal, and a place to hide mechanical equipment or drainage systems.
The slope of a roof, expressed as a ratio of vertical rise to horizontal run (e.g., 4:12). Roof pitch affects drainage, material choice, and structural design.
A common type of roof decking made from thin layers of wood veneer. It’s strong, durable, and widely used as a base layer beneath shingles or other roofing systems.
Any object that protrudes through the roof deck—such as vents, chimneys, or skylights. These areas must be carefully sealed to prevent leaks.
A flexible flashing used to seal around plumbing vent pipes. Often made of rubber or silicone with a metal base and critical to preventing leaks at roof penetrations.
The process of finishing or sealing mortar joints, often seen around chimneys. Cracked or deteriorated pointing can allow water to seep in.
A type of fastener used in metal roofing to join pieces of flashing or panels together, especially in locations where traditional screws may not work.
Standing water that remains on a flat or low-slope roof more than 48 hours after a rain. Can cause material breakdown, leaks, or even structural damage if not corrected.
A preparatory coating applied to surfaces before roofing membranes or sealants are installed. It improves adhesion, especially important for self-adhering products.
A single-ply membrane roofing system used on flat or low-slope roofs. Known for its strength, durability, and resistance to chemicals, UV rays, and standing water.
A self-adhering waterproof barrier used beneath shingles in high-risk areas (like valleys, eaves, or low slopes) for extra protection against leaks.
A thick asphalt-based adhesive used for sealing flashings, patching small leaks, and repairing shingles. Quick to apply and commonly used in emergency repairs.
A natural stone material used in specialty or high-end roofing applications. Quartzite tiles or slabs are extremely durable, weather-resistant, and offer a distinct appearance, though not commonly used in typical residential construction due to cost and weight.
A type of roofing or patch cement that cures rapidly, typically used for emergency repairs or fast flashing installations where time or weather is a factor.
A detailed list or estimate of materials and labor needed for a roofing project. Used by roofing contractors during the bidding and planning phase to ensure accurate pricing and ordering.
A structural beam that supports the roof deck and sheathing. Rafters run from the ridge or hip to the eaves and are key elements in pitched roof framing.
The sloped edge of a roof that runs from the eave to the ridge. It often requires drip edge flashing or trim to protect against wind-driven rain.
The horizontal line at the top of two sloped roof planes where they meet. The ridge is often covered with ridge caps or ridge vents.
Special shingles or metal pieces installed along the ridge line to cover the seam and provide protection from water intrusion.
A ventilation system installed along the ridge of a roof, allowing warm, humid air to escape from the attic. Often used with soffit vents for balanced ventilation.
The flat surface, usually made of plywood or OSB, attached to the rafters or trusses where all roofing layers are installed.
A pre-flashed metal pipe boot or vent installed to seal around vent pipes penetrating the roof. Critical for preventing leaks.
The steepness or slope of a roof, typically expressed as a ratio (e.g., 6:12). Affects drainage, material selection, and code requirements.
The internal angle where two sloping roof planes meet. A critical drainage area that requires special flashing or woven shingle installation for leak prevention.
An asphalt-based sealant used for patching, flashing repair, and temporary fixes. Also called plastic cement or mastic.
A water-resistant or waterproof barrier installed between the roof deck and shingles. Common types include felt paper and synthetic underlayment.
A low-cost roofing product made from asphalt-based materials in long rolls. Used on low-slope roofs, sheds, or outbuildings—not ideal for steep-slope roofs.
A single-ply membrane made of synthetic rubber, commonly used for flat or low-slope roofs. Known for its flexibility, weather resistance, and longevity.
Flashing installed where the roof meets a vertical wall. Prevents water from penetrating the joint, especially during heavy or wind-driven rain.
A measure of thermal resistance used in insulation products. Higher R-values indicate better insulation performance—important for energy-efficient roofing systems.
A small, peaked structure built behind chimneys or other large penetrations to divert water around them. Crucial in preventing water pooling and leaks in valleys or behind chimneys.
An opening in a parapet wall or edge of a flat roof that allows water drainage from the roof surface, often paired with downspouts or drainage pipes.
A roofing material with a peel-and-stick backing that bonds to the roof deck without fasteners. Common in ice and water shields and flat roof systems.
A simple, single-slope roof design. Common for porches, additions, and outbuildings. It allows for easy drainage and fast construction.
A roof covering made of overlapping elements (commonly asphalt, wood, slate, or metal) that protect the roof deck from weather. Asphalt shingles are the most widely used type in residential roofing.
A small crane or hoist used to transport bundles of shingles from the ground to the rooftop during installation.
The area where two roof slopes meet. Can be installed with shingles overlapping (closed) or with metal flashing exposed (open). Both techniques must be done properly to avoid leaks.
A roof-mounted window that allows natural light into the building. Must be properly flashed to prevent leaks.
The steepness or pitch of a roof, often expressed as inches of rise per foot of run (e.g., 4:12). Affects material choice and water runoff efficiency.
The underside of a roof overhang. Can be vented to allow air into the attic, improving ventilation and moisture control.
A roofing system where long metal panels are joined together with raised seams that are mechanically crimped or snapped. Highly durable and ideal for both commercial and residential structures.
The first row of shingles installed along the eave, designed to seal the edges and provide a secure foundation for additional rows.
Individual pieces of flashing installed in a step-like pattern along roof-to-wall intersections. Each piece is layered with the shingles above and below to channel water away from the wall.
A modern alternative to traditional felt paper, offering better tear resistance, moisture protection, and UV stability.
A unit of measurement equal to 100 square feet of roofing surface. Used for estimating roofing material quantities.
A measure of a roofing material’s ability to reflect solar heat, helping reduce indoor temperatures and energy costs. High-SRI roofing is common in hot climates.
A substance used to close gaps or joints against water, air, or debris. Used extensively in flashing and vent installations.
The exposed portion of a 3-tab shingle (usually one-third of the shingle's width). Gives the roof a uniform look and helps with water shedding.
The process of removing old roofing materials before installing a new roof. A full tear-off is usually preferred over overlaying to ensure proper installation and inspection of the roof deck.
A metal or plastic bar used to secure roofing membranes (especially on low-slope or flat roofs) at roof edges or wall transitions. Helps prevent membrane pull-off and water infiltration.
Expansion and contraction of roofing materials due to temperature changes. Important to consider when installing metal roofing, which can expand significantly in hot weather.
Single-ply roofing membranes that soften when heated and harden when cooled. These are popular in commercial roofing for their strength, UV resistance, and heat-weldable seams.
A type of flashing installed at the base of vertical roof penetrations (like chimneys or dormers) to direct water away from critical areas.
A type of modified bitumen roofing applied using an open-flame torch. Used on low-slope roofs, this material creates a strong, waterproof seal when properly installed.
A pre-engineered, triangular roof support system that distributes roof loads evenly. Commonly used in residential construction for its strength and ease of installation.
A roof made from individual clay or concrete tiles. Known for durability, fire resistance, and classic aesthetics, though they are heavier and require proper structural support.
A type of single-ply membrane used on flat and low-slope roofs. Known for its energy efficiency, heat weldability, and resistance to chemicals and UV exposure.
A clip used in standing seam metal roofing systems to allow for expansion and contraction while keeping panels secured in place.
The point where two roofing systems or sections meet, such as a new roof addition connecting to an existing roof. Proper flashing and sealing at tie-ins are critical to prevent leaks.
Traditional felt underlayment made from paper saturated with asphalt. While still in use, it’s being replaced in many projects by synthetic alternatives for better performance.
Insulation boards cut at an angle to create slope on flat roofs, ensuring water drains properly toward scuppers or drains.
The upward pressure exerted by wind on a roof system. Roofs in high-wind areas (like coastal regions or tornado-prone zones) must be designed to resist uplift forces with proper fastening patterns and materials.
A layer of material installed between the roof deck and the final roofing material (like shingles or metal panels). It provides secondary water protection in case the outer roofing fails or leaks. Types include felt paper, synthetic underlayment, and self-adhering membranes.
The breakdown of roofing materials caused by prolonged exposure to ultraviolet (UV) rays from sunlight. UV damage can lead to cracking, fading, brittleness, and reduced performance over time.
A measure of how much heat passes through a material. In roofing, lower U-values indicate better insulation and energy efficiency. Often used when selecting roof systems for climate control.
A gable roof design where the ridge continues uninterrupted, as opposed to a jerkinhead roof where the gable is clipped. The design can impact wind resistance and aesthetics.
A basic but essential tool used to cut shingles, underlayment, flashing, and other roofing materials during installation or repair.
The internal angle formed where two sloping roof sections meet. Valleys are critical drainage points on a roof and must be properly flashed to prevent leaks.
Metal flashing installed in roof valleys to direct water off the roof. Can be part of an open valley system, where the flashing remains visible, or hidden beneath shingles in a closed valley.
A material installed to prevent moisture from migrating through walls or roof systems. Especially important in buildings where interior humidity levels are high, to avoid condensation inside the roof structure.
A type of ridge cap that also functions as an exhaust vent. It allows warm, humid air to escape from the attic, helping regulate temperature and moisture.
A vertical pipe that allows air to enter the plumbing system to equalize pressure and promote proper drainage. Vent pipes penetrate the roof and must be sealed with pipe boots or flashing.
The system that allows air movement through the attic or roof structure. Proper ventilation helps prevent mold, ice dams, and excessive heat buildup, extending the life of roofing materials.
A raised joint between two metal roofing panels, typically found in standing seam metal roofing systems. Provides water tightness and allows for thermal expansion.
A diagonal rafter that supports the valley intersection where two roof slopes meet. Essential for framing complex or intersecting rooflines.
A small V-shaped groove cut into flashing or roofing materials, often to help with bending or fitting the material into tight or angled areas.
Flashing installed where the roof meets a vertical wall (e.g., chimneys, dormers, or second-story walls). Helps redirect water away from the joint to prevent leaks.
A guarantee provided by the manufacturer or installer covering defects in materials or workmanship. Roofing warranties can vary widely—common types include manufacturer warranties, workmanship warranties, and system warranties.
A self-adhering waterproof membrane applied under shingles in valleys, eaves, or around roof penetrations. It protects against ice dams, heavy rain, and wind-driven water infiltration.
A roofing technique where shingles from both roof slopes are interlaced across the valley. It's aesthetic and effective, but may trap debris if not maintained properly.
The upward force exerted by wind as it passes over a roof. Materials must be installed according to specs to resist wind damage, especially in storm-prone areas.
The maximum wind speed a roofing product is rated to withstand without failure. Common asphalt shingles have ratings from 60 mph to over 130 mph, depending on the type.
A membrane installed beneath the roofing system to protect against water penetration. Critical in flat roofing, low-slope applications, or areas with persistent heavy rain.
A type of roofing made from split wood (usually cedar). Offers a rustic appearance, natural insulation, and durability when properly maintained. Requires more upkeep than asphalt or metal.
Unlike shakes, wood shingles are machine-cut for a more uniform appearance. They’re also thinner than shakes and lay flatter on the roof surface.
Small holes or openings placed in flashing or walls to allow trapped water to drain, helping prevent water damage behind siding or roofing materials.
A protective pad or strip installed on flat commercial roofs to allow safe foot traffic for maintenance without damaging the roofing membrane.
A type of rigid foam insulation board used in roofing and wall systems. Known for its high compressive strength, moisture resistance, and thermal insulation. Commonly used in commercial low-slope roofing systems.
A structural reinforcement method used in walls and roof systems, where crossed braces form an 'X' shape to resist lateral forces like wind or seismic loads. Not strictly a roofing term but relevant in roof truss support and framing.
A popular roof estimating software used by contractors and insurance adjusters to create cost estimates for roofing jobs. Especially useful in storm restoration and insurance claim scenarios.
An older style of gutter system built into the roof structure or cornice rather than attached externally. Common in historic homes, these require frequent maintenance and are prone to leaks if not properly lined or restored.
A plumbing or drainage fitting that splits or joins water flow in a Y-shaped configuration. While more common in drainage systems, it's sometimes used in roof drainage layouts, especially in commercial or low-slope roof designs.
The maximum stress a material (like metal roofing) can withstand before it deforms permanently. An important factor in selecting roofing materials in areas subject to wind uplift, hail, or heavy loads.
A piece of metal flashing shaped like the letter Z, used where horizontal siding meets a vertical transition (like above windows, doors, or between siding and roofing components). In roofing, it helps prevent water from seeping behind siding or panels.
A durable, long-lasting metal used in architectural roofing and flashing systems. Zinc forms a self-healing patina over time that resists corrosion and weathering, making it ideal for premium or low-maintenance metal roofing.
A strip of zinc installed near the roof ridge to prevent algae or moss growth. As rainwater runs over the zinc, it creates a mild solution that inhibits organic growth on shingles or tiles — especially helpful in humid or shaded environments.
A specialized metal component used in standing seam metal roofing to seal the ends of panels and prevent water intrusion. It’s often installed where roof panels end at a ridge, eave, or wall transition.
A metal framing component shaped like a Z, used in steel roofing systems (especially on commercial or agricultural buildings). Supports roofing panels and helps distribute structural loads.
If your home is in need of a roof repair, we are the #1 expert in Residential Roof Repair in the Knoxville area and you are at the right place! With over a decade of quality roof repairs, Litespeed will fix that leak fast and right the first time! Because we know how important your home is to you.
As a homeowner, you never want to experience an Emergency Roof Repair, but there are times when Mother Nature has other plans in store. However, in the event of an emergency, it is important to have a go-to roofing contractor to contact to get professional repairs done quickly in order to prevent further damage.
Roof Leak Repair is something that we have been doing right for over a decade. We are fast and we get the job done correctly the first time.
If you need a repair, call us today and we can help you solve your problem fast.
Call: (865) 297-3286
