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Glossary of Roofing Terms


A | B | C | D | E | F | G | H | I | L | M | N | O | P | Q | R | S | T | U | V | W | Z

A

Asphalt Roofing Cement

An asphalt-based adhesive used to bond roofing materials, such as shingles and flashings. This cement is crucial for waterproofing and sealing joints and seams in roofing applications, preventing water infiltration and ensuring a durable roof system.

Asphalt

A dark brown to black mixture of bitumens derived from natural deposits or as a byproduct of petroleum refining. Asphalt is used extensively in paving, roofing, and waterproofing due to its durability, water resistance, and adhesive properties. In roofing, it provides a weather-resistant barrier and is a key component of shingles, roll roofing, and various underlayments.

B

Back Surfacing

Fine mineral particles, typically sand or talc, applied to the back of shingles during the manufacturing process. This prevents the shingles from sticking together in the package, making them easier to handle and install.

Base Flashing

The portion of the flashing installed on the roof deck, designed to channel water onto the roof covering and away from vertical surfaces such as walls or chimneys. Base flashing ensures that water is directed properly, preventing leaks and water damage.

Blisters

Bubbles that form on the surface of asphalt roofing materials due to trapped moisture or gases. While small blisters may not immediately affect roof performance, larger or widespread blisters can compromise the roof’s integrity and lead to leaks.

Brands

Burning embers carried by the wind from a fire, which can ignite other materials upon landing. Roofing materials with high fire-resistance ratings help protect buildings from brands, making them crucial in fire-prone areas.

Bridging

A roofing technique that involves installing new metric-sized shingles over existing shingles without removing the old roofing material. This method can save time and labor costs but requires ensuring the roof structure can support the additional weight and proper ventilation is maintained.

Built-Up Roof

A flat or low-sloped roof system consisting of multiple layers of asphalt and reinforcing ply sheets, typically finished with a top layer of gravel or a reflective coating. Built-up roofing (BUR) systems provide excellent waterproofing and durability, making them a popular choice for commercial and industrial buildings.

Bundle

A package of shingles containing a specific number of shingles, typically 3, 4, or 5 bundles are needed to cover one square (100 square feet) of roofing. Bundles are designed for easy handling, transport, and installation on the roof.

Butt Edge

The lower edge of shingle tabs, visible when the shingles are installed. The butt edge contributes to the roof’s aesthetic appearance and helps define the pattern of the shingles.

C

Cant Strip

A beveled strip placed in the angle between a roof and a vertical surface, such as a wall or chimney, to provide a smooth transition and avoid a sharp bend in the roofing material. Cant strips help prevent damage to the roofing material and ensure proper water drainage.

Cap Nails

Cap nails are roofing fasteners that combine a nail with a plastic or metal cap, providing enhanced protection against leaks. The cap covers a larger surface area than the nail head alone, which helps to secure roofing materials more effectively and prevent water from penetrating beneath them.

Cap Sheet

The top layer of a built-up roofing system, providing the primary weatherproofing barrier. Cap sheets can be made from organic or modified asphalt products and are often surfaced with granules or reflective coatings to protect against UV radiation and enhance durability.

Caulk

A sealant used to fill joints and cracks in roofing materials to prevent leaks. Caulk can be made from various materials, including silicone, polyurethane, and asphalt-based compounds. Proper caulking is essential for maintaining a watertight roof system.

Cement

See Asphalt Roofing Cement.

Chalk Line

A line created by snapping a taut string coated with chalk, used for aligning roofing materials during installation. Chalk lines ensure straight and even courses of shingles, contributing to the roof’s overall appearance and performance.

Class “A”

The highest fire-resistance rating for roofing materials per ASTM E-108 standards, indicating the material can withstand severe fire exposure originating from outside the building. Class “A” roofing materials provide the best protection against fire hazards.

Class “B”

A fire-resistance rating indicating the roofing material can withstand moderate fire exposure from external sources. Class “B” materials offer a good level of fire protection, suitable for areas with moderate fire risk.

Class “C”

A fire-resistance rating indicating the roofing material can withstand light fire exposure from external sources. Class “C” materials provide basic fire protection and are suitable for areas with lower fire risk.

Closed Cut Valley

A method of valley treatment where shingles from one side of the valley extend across the valley while shingles from the other side are trimmed 2 inches from the valley centerline. This method hides the valley flashing, creating a seamless and watertight transition.

Coated Sheet

Roofing material finished with a layer of asphalt and sand to prevent asphalt or adhesive from seeping through. The coating provides additional durability and weather resistance.

Coating

A viscous layer of asphalt applied to the base material into which granules or other surfacing materials are embedded. Coatings protect the roofing material from UV radiation, weathering, and physical damage.

Coil Nails

Coil roofing nails are a type of fastener specifically designed for roofing applications. They come in coils rather than individual strips, which allows for rapid, efficient nailing, especially when using a pneumatic nail gun. Here’s a breakdown of their characteristics:

  • Coil Design: The nails are arranged in a circular coil, which can be fed into a coil nailer. This design allows for a higher volume of nails to be used before needing to reload the tool.
  • Variety: They come in various sizes and types, including different lengths, diameters, and head styles, to suit different roofing needs.
  • Material: Typically made of steel, they may be coated to resist rust and improve their holding power.
  • Application: Commonly used for attaching roofing materials like shingles, particularly asphalt shingles, to the roof deck.

Coil roofing nails are favored for their convenience and speed, making them a popular choice among roofing professionals.

Collar

A pre-formed flange placed over a vent pipe to seal the roof around the pipe opening, preventing water infiltration and providing a finished appearance. Also known as a vent sleeve.

Concealed Nail Method

A roofing technique where nails are driven into the underlying course of roofing and covered by the overlapping course. This method hides the nails from weather exposure, reducing the risk of leaks and corrosion.

Condensation

The process where water vapor turns into liquid when warm, moisture-laden air comes into contact with a cold surface. Proper ventilation and insulation in roofing systems help prevent condensation and associated issues like mold and rot.

Counter Flashing

Flashing attached to a vertical surface to prevent water from getting behind the base flashing. Counter flashing works in conjunction with base flashing to create a complete waterproofing system at roof penetrations and intersections.

Course

A horizontal row of shingles or roll roofing running the length of the roof. Courses are installed in a staggered pattern to ensure proper coverage and water shedding.

Coverage

The extent of weather protection provided by roofing material, determined by the number of layers between the exposed surface and the deck. Coverage is classified as single, double, or triple, depending on the overlap of the materials.

Cricket

A peaked saddle construction at the back of a chimney or other roof projection, designed to divert water around the obstruction and prevent accumulation of snow and ice, thus preventing leaks and damage.

Cutout

The open portions between tabs in strip shingles. Cutouts contribute to the aesthetic pattern and help with water drainage.

D

Deck

The surface, typically made of plywood, OSB, or other sheathing material, installed over supporting framing members. The deck provides the structural base for the roofing system, supporting the roofing material and distributing loads.

Decking (Plywood Sheathing)

The structural layer of a roof over which roofing material is applied. Common types of decking used in residential roofing projects include Plywood, OSB, Tongue and groove, and Step sheathing. Decking provides support and a smooth surface for the roofing material, ensuring stability and durability.

Dormer

A framed window unit that projects vertically through the sloping plane of a roof. Dormers add natural light, ventilation, and architectural interest to a building, increasing usable space and enhancing aesthetic appeal.

Double Coverage

A roofing application method where the lapped portion of asphalt roofing is at least twice as wide as the exposed portion, resulting in two layers of roofing material over the deck. Double coverage provides enhanced waterproofing and durability.

Downspout

A pipe that directs water from roof gutters to the ground or drainage system. Also known as a leader, downspouts are essential for preventing water damage to the building’s foundation and landscaping by directing runoff away from the structure.

Drip Edge

A non-corrosive, non-staining material installed along eaves and rakes to ensure water runoff drips clear of the underlying construction. Drip edges protect the roof structure from water damage and extend the life of the roofing materials.

Dutch Lap Method

A roofing technique involving the installation of large individual shingles parallel to the eaves. This method creates a distinctive overlapping pattern that enhances the roof’s appearance and water-shedding capabilities.

E

Eaves Flashing

An additional layer of roofing material applied at the eaves to prevent damage from water backup, often due to ice dams. Eaves flashing helps protect the roof deck and interior from leaks and moisture damage.

Eaves

The lower, overhanging part of a roof, typically where gutters are located. Eaves provide shade, protect the building’s walls from water damage, and contribute to the overall architectural style.

Edging Strips

Boards nailed along eaves and rakes to provide secure edges for re-roofing with asphalt shingles. Edging strips help create a clean, finished look and prevent water infiltration at the roof’s edges.

Ell

An extension of a building at right angles to its main length. Ells often create additional living space or architectural interest.

Exposed Nail Method

A roofing technique where nails are driven into the overlapping course of roll roofing, exposing them to the weather. This method is less common due to the increased risk of leaks and corrosion but may be used in specific applications.

Exposure

The degree to which roofing material is exposed to the elements, including heat, cold, wind, and rain. Properly installed roofing materials are designed to withstand various exposures and protect the building’s interior.

F

Fascia

Trim used to cover the ends of the rafters at the eaves. Fascia boards are often where gutters are attached, providing structural support and a finished appearance.

Feathering Strips

Tapered wood strips placed along the butts of old wood shingles to create a level surface for re-roofing. Feathering strips ensure secure edges and a smooth installation of new asphalt shingles.

Felt

A fibrous material saturated with asphalt, used as an underlayment or sheathing paper. Felt provides an additional waterproofing layer between the roof deck and the roofing material.

Fiberglass Mats

A base material made from glass fibers, used in asphalt roofing products. Fiberglass mats add strength, durability, and fire resistance to shingles and other roofing materials.

Fire Rating

A measurement of a material’s resistance to fire, determined by independent laboratories. Fire ratings help ensure that roofing materials meet safety standards and provide adequate protection in case of a fire.

Flashing

Metal or roll roofing pieces used to prevent water from seeping into a building at intersections or projections, such as vent pipes, chimneys, and valleys. Flashing is crucial for maintaining a watertight roof system and preventing leaks.

Flashing Cement

An asphalt-based adhesive used to bond roofing materials, such as shingles and flashings. This cement is crucial for waterproofing and sealing joints and seams in roofing applications, preventing water infiltration and ensuring a durable roof system.

Free-Tab Shingles

Shingles that do not contain factory-applied strips or spots of self-sealing adhesive. Free-tab shingles rely on mechanical fastening or additional adhesive for installation.

G

Gable Roof

A roof design featuring two sloping planes of the same pitch meeting at a ridge, with a gable at each end. Gable roofs are simple, cost-effective, and provide good ventilation and attic space.

Gable

The upper portion of a sidewall that forms a triangular peak at the ridge of a sloping roof. Gables add architectural interest and can include windows for additional light and ventilation.

Gambrel Roof

A roof design with two slopes on each side, the lower slope being steeper than the upper. Gambrel roofs provide additional attic or living space and are commonly seen in barn and Colonial-style architecture.

Granules

Ceramic-coated, colored crushed rock applied to the exposed surface of asphalt roofing products. Granules protect the asphalt from UV radiation, provide color, and add durability to the roofing material.

Gutter

A trough installed along the eaves to channel water from the roof to the downspouts. Gutters prevent water damage to the building’s foundation and landscaping by directing runoff away from the structure.

H

Head Lap

The shortest distance from the butt edge of an overlapping shingle to the upper edge of a shingle in the second course below. Head lap ensures proper overlap and water shedding, contributing to the roof’s durability.

Hex Shingles

Shingles designed to look like hexagons once installed, creating a distinctive honeycomb pattern. Hex shingles are an aesthetic choice that adds visual interest to the roof.

Hip Roof

A roof design with sloping planes of the same pitch on all four sides, meeting at a ridge or point. Hip roofs are stable and provide good resistance to wind and snow loads.

Hip Shingles

Shingles used to cover the external angles formed by the intersection of two sloping roof planes. Hip shingles provide a finished look and additional weather protection at roof hips.

Hip

The inclined external angle formed by the intersection of two sloping roof planes, running from the ridge to the eaves. Hips are a common feature in hip and gable roof designs.

I

Ice & Water Shield

Ice and water shield is a type of roofing underlayment used as a moisture barrier, particularly in areas prone to ice dams or heavy rain. It’s a self-adhering membrane that seals around nails and other fasteners to create a waterproof barrier beneath the shingles. This helps prevent water from infiltrating the roof deck and causing leaks or damage. It’s especially useful in regions with severe winter conditions where ice dams can form, or in areas with a high risk of roof leaks due to heavy rain. The shield is typically installed along eaves, valleys, and other critical areas of the roof.

Ice Dam

A condition at the lower edge of a roof where thawing and re-freezing snow causes water to back up under the shingles, potentially causing leaks. Ice dams are prevented by proper insulation, ventilation, and eaves flashing.

Interlocking Shingles

Shingles that fasten to each other mechanically to provide enhanced wind resistance. Interlocking shingles are designed to stay in place during high winds, offering improved durability and protection.

L

Laminated Shingles

Shingles with multiple layers of tabs for extra thickness, also called three-dimensional or architectural shingles. Laminated shingles provide a more textured and dimensional appearance, along with enhanced durability.

Lap Cement

Asphalt-based cement used to adhere overlapping plies of roll roofing. Lap cement ensures a watertight seal and helps prevent wind uplift and water infiltration.

Lap

To cover one shingle or roll with another, ensuring proper overlap for weather protection. Lapping is a fundamental roofing technique that contributes to the roof’s overall performance.

Low Slope Application

A method of installing asphalt shingles on roofs with slopes between 2 and 4 inches per foot. Low slope applications require additional waterproofing measures, such as underlayments and sealants, to prevent leaks.

M

Mansard Roof

A roof design with two slopes on each side, the lower slope being much steeper, often approaching vertical. Mansard roofs provide additional living space and a distinctive architectural style.

Masonry Primer

An asphalt-based primer used to prepare masonry surfaces for bonding with asphalt products. Masonry primers enhance adhesion and ensure a durable bond between roofing materials and masonry.

Mastic

An asphalt-based sealant applied by trowel or hand using rubber gloves. Mastic is used for various sealing and waterproofing applications in roofing and other trades.

Mechanical Fasteners

Roofing nails, screws, and plates used to fasten roof insulation and single-ply membranes. Mechanical fasteners can be made from metal or plastic and are essential for securing roofing materials in place.

Mineral Stabilizers

Finely ground materials like limestone, slate, or trap-rock added to asphalt coatings for increased durability, fire resistance, and weathering properties.

Mineral-Surfaced Roofing

Asphalt shingles and roll roofing covered with granules for enhanced durability and weather resistance. Mineral-surfaced roofing provides a protective barrier against UV radiation and physical damage.

Modified

Cap or ply sheets made with a modified rubber product, such as SBS or APP, for greater tensile strength and flexibility than regular asphalt products. Modified bitumen roofing systems are used in both commercial and residential applications for enhanced performance.

N

Nesting

A re-roofing method where the top edge of new shingles is butted against the bottom edge of existing shingle tabs. Nesting ensures a smooth transition and helps prevent water infiltration.

No-Cutout Shingles

Shingles consisting of a single, solid tab with no cutouts. No-cutout shingles provide a uniform appearance and may offer enhanced wind resistance.

Non-Veneer Panel

A wood-based panel without veneer, such as wafer board or oriented strand board (OSB), carrying an APA span rating. Non-veneer panels are used in roof decking and other structural applications.

Normal Slope Application

A method of installing asphalt shingles on roofs with slopes between 4 inches and 21 inches per foot. Normal slope applications provide effective water shedding and are suitable for most residential roofs.

O

Open Valley

A method of valley construction where shingles on both sides of the valley are trimmed along a chalk line snapped on each side of the valley. The valley flashing is exposed, providing a clear path for water runoff and enhancing the roof’s drainage capabilities.

Organic Felt

An asphalt roofing base material made from cellulose fibers, providing a durable and water-resistant underlayment for shingles and other roofing materials.

Overhang

The portion of the roof structure that extends beyond the exterior walls of a building. Overhangs provide shade, protect the walls from water damage, and contribute to the architectural style.

P

Pallets

Pre-built wooden structures used to transport and store roofing materials like tiles and shingles. Pallets make handling and moving large quantities of materials easier and more efficient.

Parapet (Walls)

A low protective wall extending above the roofline or balcony, providing support and safety. Parapet walls are common in commercial and industrial buildings, offering additional protection and aesthetic appeal.

Pipe Flashings

Pipe flashings are roofing components designed to seal around pipes or other protrusions that penetrate the roof surface. Their primary purpose is to prevent water from leaking into the building where pipes or vents pass through the roof.

Pitch

The degree of roof incline expressed as the ratio of the rise, in feet, to the span, in feet. Roof pitch affects the roof’s appearance, water shedding capabilities, and suitability for different roofing materials.

Ply

The number of layers in a roofing system, such as one-ply, two-ply, or three-ply. Multiple plies provide enhanced waterproofing and durability, making the roof more resistant to leaks and weather damage.

Polyester Membrane

A reinforcing membrane sheet used in the cold overlay system, providing additional strength and flexibility to the roofing material. Polyester membranes are commonly used in modified bitumen and built-up roofing systems for added durability.

Q

Quick-Setting Cement

An asphalt-based cement used to adhere tabs of strip shingles to the course below and to seal roll-roofing laps applied by the concealed nail method. Quick-setting cement provides a fast and reliable bond for roofing applications, ensuring immediate adhesion and reducing the risk of wind uplift.

R

Racking

A roofing application method where shingle courses are applied vertically up the roof rather than across and up. Racking is generally not recommended due to potential issues with alignment and water shedding, which can compromise the roof’s integrity.

Rafter

A supporting framing member immediately beneath the deck, running from the ridge to the wall. Rafters provide structural support for the roof and create the roof’s slope, distributing weight and loads evenly across the structure.

Rake

The inclined edge of a sloped roof extending from the eave to the ridge. Rake edges are often finished with trim or fascia to protect the roof and enhance its appearance, preventing water from seeping into the edges.

Random-Tab Shingles

Shingles with tabs that vary in size and exposure, creating a more irregular and textured appearance on the roof. This design adds visual interest and can help mask minor imperfections in the roof’s alignment.

Release Tape

A plastic or paper strip applied to the back of self-sealing shingles to prevent them from sticking together in the bundle. Release tape is removed during installation to allow the adhesive to bond, ensuring a secure and watertight seal.

Ridge

The uppermost, horizontal external angle formed by the intersection of two sloping roof planes. The ridge is typically covered with ridge shingles or a ridge cap to provide weather protection and a finished appearance.

Ridge Shingles

Shingles used to cover the ridge of a roof, providing a finished look and additional weather protection. Ridge shingles are designed to withstand high winds and water infiltration, extending the life of the roof.

Ridge Vent

A ventilation device installed along the ridge of a roof to allow warm, moist air to escape from the attic, improving ventilation and preventing condensation. Proper attic ventilation helps regulate indoor temperatures and reduces energy costs.

Rise

The vertical distance from the eaves line to the ridge of a roof. Rise is used in calculating the roof pitch, which determines the roof’s slope and suitability for different roofing materials.

Roll Roofing

Asphalt roofing products manufactured in roll form, used for low-slope roofing applications. Roll roofing is easy to install and provides a durable, weather-resistant surface, making it a cost-effective option for sheds, garages, and other outbuildings.

Roof Insulation

Rigid boards of various thicknesses, typically applied with mechanical fasteners, used to insulate the roof and improve energy efficiency. Roof insulation helps maintain indoor temperatures, reduces energy costs, and prevents heat loss through the roof.

Roof Jacks (Also known as pipe flashings)

Pipe flashings are roofing components designed to seal around pipes or other protrusions that penetrate the roof surface. Their primary purpose is to prevent water from leaking into the building where pipes or vents pass through the roof.

Roofing Tape

A saturated tape used with asphalt cements for flashing and patching asphalt roofing. Roofing tape provides a quick and effective solution for minor repairs and sealing joints, extending the life of the roof.

Run

The horizontal distance from the eaves to a point directly under the ridge. Run is used in calculating the roof pitch, which determines the roof’s slope and suitability for different roofing materials.

S

Saturant

Asphalt used to impregnate an organic felt base material, providing waterproofing and durability. Saturants enhance the weather resistance of the felt, making it a reliable underlayment for roofing systems.

Saturated Felt

An asphalt-impregnated felt used as an underlayment between the deck and the roofing material, providing additional waterproofing and protection. Saturated felt helps prevent water infiltration and extends the life of the roofing system.

Self-Sealing Strip or Spot

Factory-applied adhesive on shingles that bonds the courses together when exposed to the heat of the sun after installation, preventing wind uplift and water infiltration. Self-sealing strips or spots enhance the durability and weather resistance of the shingles.

Selvage

The portion of roll roofing overlapped by the succeeding course to achieve double coverage. Selvage helps ensure a watertight seal and enhanced durability, making the roofing system more resistant to leaks and weather damage.

Shading

Slight differences in shingle color that may occur as a result of normal manufacturing operations. Shading adds a natural variation to the roof’s appearance, enhancing its aesthetic appeal.

Sheathing

Exterior grade boards, such as plywood or OSB, used as a roof deck material. Sheathing provides a solid base for roofing materials and contributes to the roof’s structural integrity, ensuring stability and support.

Shed Roof

A roof design containing only one sloping plane, with no hips, ridges, valleys, or gables. Shed roofs are simple, cost-effective, and provide good water shedding, making them suitable for sheds, porches, and additions.

Shingle Coverage

The area covered by a single shingle or bundle of shingles. Coverage is determined by the number of layers and the overlap of the shingles, ensuring adequate protection and durability.

Single Coverage

Asphalt roofing that provides one layer of material over the deck, typically used for lower-cost or temporary roofing solutions. Single coverage offers basic protection but may require additional layers for enhanced durability.

Single Ply Roofing

A rubber or synthetic membrane applied with or without adhesive, sealed and fastened at the laps. Single ply roofing is known for its flexibility, durability, and ease of installation, making it a popular choice for commercial and industrial buildings.

Slope

The degree of roof incline expressed as the ratio of the rise, in inches, to the run, in feet. Roof slope affects the type of roofing materials used and the roof’s ability to shed water, influencing its overall performance and durability.

Smooth-Surfaced Roofing

Roll roofing covered with ground talc or mica instead of granules, providing a smooth, durable, and weather-resistant surface. Smooth-surfaced roofing is easy to install and maintain, making it suitable for low-slope applications.

Soffit

The finished underside of the eaves, often ventilated to allow air circulation and prevent condensation in the attic. Soffits enhance the aesthetic appeal of the roof and contribute to proper ventilation.

Soil Stack

A vent pipe that penetrates the roof, allowing sewer gases to escape from the plumbing system. Soil stacks ensure proper ventilation of the plumbing system, preventing the buildup of harmful gases.

Span

The horizontal distance from eaves to eaves, used in calculating the roof pitch. Span determines the overall width of the roof and influences its structural design.

Square

A unit of roof measure covering 100 square feet. Roofing materials are often sold by the square to simplify estimating and purchasing, making it easier to calculate the amount needed for a project.

Square-Tab Shingles

Shingles with tabs that are all the same size and exposure, creating a uniform appearance. Square-tab shingles offer a clean, consistent look and are easy to install.

Starter Strip

Asphalt roofing applied at the eaves to provide a solid foundation for the first course of shingles and fill in spaces under the cutouts and joints. Starter strips enhance the roof’s water-shedding capabilities and prevent leaks.

Steep Slope Application

A method of installing asphalt shingles on roofs with slopes greater than 21 inches per foot. Steep slope applications require additional safety measures and installation techniques, ensuring proper adhesion and performance.

Step Flashing

Flashing pieces installed where a vertical surface meets a sloping roof plane, arranged in a step-like pattern to direct water away from the wall and onto the roof. Step flashing prevents water infiltration and protects the building’s structure.

Strip Shingles

Asphalt shingles that are approximately three times as long as they are wide, commonly used in residential roofing. Strip shingles provide a clean, uniform appearance and are easy to install.

Synthetic Underlayment

A type of roofing material used as a protective layer between the roof deck and the shingles. Unlike traditional felt underlayment, synthetic underlayment is made from woven or non-woven polymers. Synthetic underlayments should not be exposed to the sun for more than 90 days, should not be installed under concrete or clay roof tiles, and is a permeable product.

T

Tab

The exposed portion of strip shingles defined by cutouts. Tabs create the pattern and appearance of the roof, contributing to its overall aesthetic appeal.

Talc

A fine mineral used as back surfacing to prevent shingles from sticking together in the package. Talc enhances the handling and installation of shingles, ensuring they remain separated and easy to apply.

Tear Off

The removal of an existing roof membrane, necessary when applying a new roof membrane. Tear off is often required by building codes and ensures a clean, stable surface for the new roofing material, extending the life of the roof.

Telegraphing

A shingle distortion that occurs when a new roof is applied over an uneven surface. Proper preparation and underlayment can prevent telegraphing, ensuring a smooth and uniform appearance.

Three Dimensional Shingles

See Laminated Shingles.

Top Lap

The portion of the roofing material covered by the succeeding course after installation, providing additional layers of protection. Top lap enhances the roof’s durability and weather resistance, ensuring long-term performance.

Torch Applied System

A roofing system where the cap sheet is coated with modified asphalt and heated with a torch just prior to application. This method provides a strong, durable bond and is commonly used in commercial roofing for enhanced performance and longevity.

U

UL Label

A label displayed on packaging indicating the level of fire and/or wind resistance of asphalt roofing materials. UL labels ensure that roofing products meet safety and performance standards, providing assurance of their quality.

UL

Underwriters Laboratories, Inc., an independent testing organization that certifies the safety and performance of roofing materials. UL certification ensures that roofing products meet industry standards and provide reliable protection.

UL® Rated

Shingles that have been tested and certified by Underwriters Laboratories for wind resistance and Class “A” fire ratings, the highest available. UL-rated shingles provide enhanced safety and durability, ensuring reliable protection in various conditions.

Underlayment

Asphalt-saturated felt or synthetic material used beneath roofing to provide additional protection for the deck. Underlayment acts as a secondary barrier against water infiltration, enhancing the roof’s overall performance and longevity.

V

Valley

The internal angle formed by the intersection of two sloping roof planes, providing a pathway for water runoff. Valleys require careful construction and flashing to ensure proper drainage and prevent leaks, protecting the roof and structure.

Vapor Retarder

Any material used to prevent the passage of water vapor, protecting the roof deck and insulation from moisture damage. Vapor retarders help maintain the integrity of the roofing system and prevent issues like mold and rot.

Vent

An outlet for air that protrudes through the roof deck, such as a pipe or stack. Roof vents improve ventilation and reduce moisture buildup in the attic, contributing to a healthier indoor environment and extending the life of the roof.

W

Woven Valley

A method of valley construction where shingles from both sides of the valley extend across and are woven together by overlapping alternate courses. Woven valleys provide a seamless and watertight transition, enhancing the roof’s durability and appearance.

Z

Z-Bar

A metal flashing component used in roofing and siding applications to create a weather-resistant barrier at joints and transitions. Z-bars are typically made from galvanized steel or aluminum, providing durability and protection against water infiltration.

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1 month ago
Professional, helpful and on time. Quality workmanship
Response from the owner:Thank you, Thom, for taking the time to leave us a 5-star review! We’re so glad to hear you were happy with our pricing, professionalism, punctuality, and the quality of our workmanship. It was a pleasure installing your new gutters, and we truly appreciate your trust in JBS Roofing. If there's ever anything we can help you with in the future, we're just a phone call away. Thanks again for your support! ~Valorie Brown, President
Tom Cortabitarte
2 months ago
Every aspect of the entire project including roof inspection, roof repair and gutter installation exceeded our expectations. Staff was friendly, professional and treated us as if we were their only customer. Highly recommend Jim Brown and Sons. Outstanding!
Response from the owner:Thank you so much for your wonderful review! We truly appreciate you trusting Jim Brown & Sons Roofing with your roof inspection, roof repair, and gutter installation. Knowing that every aspect of your project exceeded your expectations means the world to our team. We take great pride in providing friendly, professional service and treating every customer as if they're our only customer. Thank you for your recommendation and for taking the time to share your experience. It was a pleasure working with you, and we're here anytime you need us in the future! ~Valorie Brown, President
Kevin McCarthy
4 months ago
I’ve seen a lot of roofs done in my neighborhood and Jim Brown did one and I knew immediately they were the people I was going to call when my roof needed to be done. Job was completed in two days amazing. even with the extra things I had them do.
Response from the owner:Thank you so much for your wonderful review, Kevin! It means a lot that seeing the quality of our work in your neighborhood gave you the confidence to choose Jim Brown & Sons Roofing for your own home. We're thrilled to hear you were happy with the results and that our team completed your project in just two days, even with the additional work you requested. We appreciate your trust in us and your kind words. Thank you for choosing JBS Roofing, and please don't hesitate to reach out if we can help with anything in the future! ~Valorie Brown, President
Pamela Greene
5 months ago
In the past, I collaborated with JBS Roofing for repairs, and I have now engaged their services for a roof replacement. The level of professionalism, integrity, and attention to detail is what one should anticipate from a reputable business. From the office personnel to the installers and the final inspection, everything was top-notch. Aside from the amazing new roof, there was no evidence that they had been on the property. They left no mess, which is crucial for me as I have a dog and want to ensure her safety. I appreciate all of your assistance!
Response from the owner:Pamela, thank you so much for your continued trust in JBS Roofing—we truly appreciate the opportunity to work with you again! It means a lot to hear that our team delivered on professionalism, attention to detail, and communication from start to finish. We take great pride in not only the quality of our work, but also in leaving every job site clean and safe—especially for our customers (and their furry family members 🐾). We’re grateful for your kind words and your support, and we’re always here if you need anything in the future! ~Valorie Brown - President
Mary S
6 months ago
This is truly the best roofing company I have ever worked with. We were grandfathered into a warranty from the prior owner. Every time we have called them for something they have responded and come right out to fix what's covered under the warranty. Their customer service is excellent and they really care about their customers. I would highly recommend them because their support even after the work is done continues to be top notch!
Response from the owner:Thank you so much for your kind words and for taking the time to share your experience! We’re especially glad to hear that your warranty experience has been smooth and that our team has been responsive when you’ve needed us. Standing behind our work—long after the job is complete—is something we truly believe in, so it means a lot to know that commitment is coming through. Your recommendation and trust in us are greatly appreciated. If you ever need anything in the future, we’re always here to help! – Valorie Brown & The JBS Roofing Team 🏠🔨 #since1982
James Biggs
6 months ago
The JBS team are excellent. They installed our gutters, and were very communicative about installation, ideal places to situate downspouts, and I am very happy we have this system in place.
Response from the owner:Thank you so much, James! We really appreciate you taking the time to share your experience. We’re glad to hear you’re happy with your new gutter system and that our team was able to clearly communicate throughout the process—especially when it came to placement and functionality. Getting those details right makes all the difference long-term. Your feedback means a lot to us, and we’re grateful for the opportunity to earn your trust. If you ever need anything down the road, we’re here for you! – Valorie Brown & The JBS Roofing Team 🏠🔨 #since1982

Residential Roofing

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Foam Roofing in Phoenix

What is Foam Roofing?

SPF or sprayed polyurethane foam is one of the most popular, durable, cost-effective and environmentally-friendly roofing systems in Phoenix. Years of research back this relatively new technology and show the many benefits of foam roofing. Urethane foam roofing in Phoenix offers you a long-term solution for your home. The original SPF roofing has been installed on residential homes in Phoenix since the 1970s.

Although the urethane products we use are similar, our materials are more modern and have been refined and significantly improved over the years. Although the majority of foam roofing contractors offer SPF, you can be assured all of our materials are of the highest possible quality.

Is Foam Roofing in Arizona Worth it?

Yes, the best system for your flat roof is polyurethane foam. Phoenix residential foam roofing is sprayed on, resulting in a seamless protection layer for your home and it pays for itself due to the insulation value. This means the thickness of the material will save you money on your cooling and heating costs. In addition to leak protection, your Phoenix foam roof will last for the long term.

What Is Foam Roofing in Phoenix Made of?

When the liquid components of a polyol resin and isocyanate are combined, the result is urethane foam roofing. The material is then sprayed onto the surface of your roof. The reaction of the liquid mixture creates a durable insulation layer on your roof. The minimum application layer is one inch. We can use thicker applications for extra insulation.

Why Should You Choose Foam Roofing Phoenix AZ?

The combination of benefits and ease you receive with a residential foam roof in Arizona are excellent for the unique weather in the area. Foam roofs have become popular all over the state. At Jim Brown and Sons Roofing, we help you take advantage of all the advantages you receive with foam roofing. We are a family-owned business with over 40 years of experience in the Phoenix area offering high-quality materials and workmanship. Contact us today for a free estimate!

Reasons to Consider Foam Roofing in Arizona

The application process for a residential foam roof in Arizona uses a blowing agent free of CFCs or chlorofluorocarbons. This means you are having a green roofing solution installed. You can take pride in your new roof and the benefits you receive because everything is environmentally friendly.

One of the benefits of polyurethane is insulation. During a Phoenix summer, you need your roof to keep heat away from your home. During the winter, you are kept warm by the same insulation. The insulation is so superior, your energy consumption decreases and you are helping the planet by going green.

A residential foam roof in Arizona keeps water away due to the virtual impenetrability of the closed-cell structure. Since your foam roof helps ensure appropriate drainage, it will help prevent water from collecting even when it is raining. As Phoenix foam roofing contractors, we recommend polyurethane roofing regardless of which type of roof you have. We simply use foam to spray on your new roof.

At Jim Brown and Sons Roofing, we want your roof to be durable whether we are performing foam roof repair in Phoenix or installing an entirely new roof. A spray foam roof is resilient, provides you with durability and protects your home for the long run.