Roofing System Quiz

send your feedbacks in "architalk page". In this question, skylight is a part of a "roof" ( or the entire roof) that emits or accepts daylight while a clerestory is a "window" that functions the same but parallel to wall or admits light from the wall not from the roof.

Steel coated with zinc is also called galvanized because galvanization is the process of applying a protective zinc coating to steel or iron to prevent rusting. This process involves immersing the steel in a bath of molten zinc, which forms a metallurgical bond with the steel, creating a protective layer. Galvanized steel is highly resistant to corrosion and is commonly used in outdoor applications such as construction, automotive, and agricultural industries.

The gutter is attached to the fascia board. The fascia board is a long, straight board that runs along the lower edge of the roof. It is typically made of wood or metal and is used to support the bottom row of roof tiles or shingles. The gutter is attached to the fascia board using brackets or hangers, allowing it to collect and redirect rainwater away from the roof and foundation of the building.

A steep gable roof is ideal for a forested area because it has a high pitch, which allows for easy shedding of leaves, branches, and other debris that may fall from the surrounding trees. The steep angle also helps to prevent the accumulation of snow during winter months. Additionally, the gable design provides good ventilation and allows for efficient drainage of rainwater, reducing the risk of leaks or water damage.

A truss is a system of triangles used to support a roof. Triangles are the strongest shape and provide stability and strength to the structure. Trusses are commonly made of steel or wood and are designed to distribute the weight of the roof evenly, preventing sagging or collapse. They are often used in larger buildings or structures where a strong and reliable support system is required.

The vertical and diagonal members of a truss are called web members. These members are responsible for providing support and stability to the truss structure. They help distribute the load and prevent any excessive bending or twisting. The term "web" refers to the interconnected network of these members, which resemble a web-like pattern when viewed from the side. Therefore, web members is the correct term to describe these components of a truss.

A scupper is an opening in the side of a building, typically found in a parapet, that is used to drain off rainwater. It allows water to flow out of the building, preventing it from accumulating and causing damage. Roof drains and gutters are also used for rainwater drainage, but they are not specifically openings in the side of the building like scuppers. Gargoyles, on the other hand, are decorative features often found on buildings, but they do not serve the purpose of draining off rainwater.

Long span G.I. is the ideal type of roof for a warehouse or factory because it offers several advantages. It is made of galvanized iron, which provides durability and strength, making it suitable for large industrial structures. The long span design allows for wider roof coverage, reducing the need for additional support columns and maximizing the usable space inside the warehouse or factory. Additionally, G.I. roofs are resistant to corrosion and can withstand harsh weather conditions, making them a reliable choice for industrial buildings.

Rivets are used to attach aluminum gutters to the roof. Rivets are fasteners that consist of a cylindrical shaft with a head on one end. They are inserted into pre-drilled holes and then deformed on the other end to create a permanent connection. Rivets are commonly used in applications where a strong and secure joint is required, such as attaching gutters to roofs.

Vulcaseal is a material commonly used to waterproof surfaces, including GI gutters. It forms a protective barrier that prevents water from seeping through and causing damage. This makes it an ideal choice for sealing and protecting gutters, as it ensures they remain watertight and durable. Other options listed, such as rivets, contact cement, and liquid cement, may have different applications but are not specifically designed for waterproofing gutters. Therefore, vulcaseal is the correct answer for this question.

Shingles are the ideal type of roof for a beach rest house because they are durable, weather-resistant, and provide good insulation. They can withstand the harsh coastal conditions, including strong winds, saltwater exposure, and intense sunlight. Shingles also come in a variety of colors and styles, allowing homeowners to choose a design that complements the beach aesthetic. Additionally, shingles are relatively easy to install and maintain, making them a practical choice for a beach rest house.

The span refers to the distance between two structural supports. It is the length between two points of support, such as columns or beams, and determines the overall length of a structure. The span is an important factor in determining the structural integrity and load-bearing capacity of a building or bridge. It is crucial to consider the span when designing and constructing a structure to ensure it can safely support the intended load.

A scupper is an opening in the side of a building, typically found in a parapet, that is used to drain off rainwater. It is designed to redirect water away from the building's walls and foundation to prevent damage. Gargoyles are decorative water spouts often found on buildings, but they do not serve the same purpose as a scupper. A roof drain is a specific type of drainage system for rooftops, while a gutter is a trough that collects and channels rainwater from the roof. Therefore, the most appropriate answer for an opening in the side of a building for draining rainwater is a scupper.

The top chord is connected to the bottom chord using a gusset plate. A gusset plate is a flat plate that is used to connect two or more structural members together. It is typically made of steel and is welded to the top and bottom chords, providing a strong and stable connection between them. This type of connection is commonly used in truss structures to ensure structural integrity and load-bearing capacity.

The gap in polycarbonate roofing is for thermal expansion. Polycarbonate is a material that expands and contracts with changes in temperature. If there is no gap provided, the roofing may crack or become damaged due to the stress caused by thermal expansion. By allowing for a gap, the roofing can expand and contract freely without causing any cracks or damage.

A ground floor toilet does not require waterproofing because it is already located on the ground level, where there is less risk of water damage compared to higher floors. The ground floor is typically built on a solid foundation, making it less susceptible to water leakage or seepage. Additionally, the ground floor toilet is usually designed with proper drainage systems in place to prevent water accumulation and ensure efficient water flow. Therefore, waterproofing measures are not as necessary for a ground floor toilet as they would be for other areas such as a balcony over a lanai, 2nd floor toilet, or a terrace deck.

The most common roofing size is typically between 6m-12m. This range is commonly used in construction and is suitable for most residential and commercial buildings. It provides a good balance between cost, practicality, and aesthetics. Sizes such as 6m-10m, 6m-20m, and 5m-10m are less common and may be used for specific purposes or in unique circumstances.

Gutters are joined using aluminum rivets. Aluminum rivets are commonly used in gutter installation because they are lightweight, durable, and resistant to corrosion. They provide a secure and long-lasting connection between gutter sections, ensuring that they stay in place and effectively channel water away from the building. Additionally, aluminum rivets are easy to install and can be used on various types of gutters, making them a popular choice among professionals and DIY enthusiasts.

Roof deck water proofing has a minimum of 5 years warranty because it is a specialized waterproofing system designed to protect the roof deck from water damage. This type of waterproofing is typically applied to flat or low-sloped roofs and is made to withstand heavy rain, snow, and other weather conditions. The minimum 5-year warranty ensures that the roof deck will remain protected from water infiltration for at least that period of time.

The waterproofing should be installed in between the slab and toppings to provide a protective layer that prevents water from seeping into the structure. This location ensures that any water that may penetrate the toppings does not reach the slab, protecting the underlying structure from water damage. Installing the waterproofing above FFL or above the floor topping would not effectively prevent water infiltration, while installing it under the slab would make it difficult to access and maintain.

Asphalt is a material used for roofing that melts when exposed to the sun. This property allows it to transform and conform to the shape of the roof, creating a tight and waterproof seal. Asphalt is commonly used in roofing due to its durability, affordability, and ease of installation.

Surface preparation is the main reason why waterproofing and paint sometimes do not adhere to the surface. Proper surface preparation is crucial for the adhesion of paint and waterproofing materials. If the surface is not properly cleaned, sanded, or primed, the paint or waterproofing may not be able to bond effectively with the surface, leading to poor adhesion and potential failure. The surface needs to be free from dirt, dust, grease, and other contaminants to ensure a strong bond between the material and the surface.

Polycarbonate is the ideal type of roof for a sidewalk because it is lightweight, durable, and transparent. It allows natural light to pass through, creating a bright and inviting space while still providing protection from the elements. Polycarbonate roofs are also resistant to UV rays, ensuring that they do not yellow or become brittle over time. Additionally, polycarbonate is easy to install and maintain, making it a practical choice for sidewalk roofs.

A GI roof with double bubble foil insulation is ideal for a busy airport because it is durable, low-maintenance, and provides excellent insulation. The GI roof is made of galvanized iron, which is resistant to corrosion and can withstand heavy foot traffic and extreme weather conditions. The double bubble foil insulation adds an extra layer of thermal protection, helping to regulate temperature and reduce energy costs. This type of roofing is also lightweight, making it easier to install and transport materials to the airport. Overall, the GI roof with double bubble foil insulation is the best choice for a busy airport due to its durability, insulation properties, and low maintenance requirements.

Self-tapping screws are commonly used to connect G.I. roofing to steel purlins because they have a sharp, pointed end that can easily penetrate and create its own thread in the steel. This eliminates the need for pre-drilling holes and makes the installation process faster and more efficient. Additionally, self-tapping screws provide a secure and reliable connection between the roofing and purlin, ensuring that they stay firmly in place even under harsh weather conditions.

Polycarbonate is a versatile material that is commonly used for various applications due to its durability and transparency. While it is commonly used for roofing, it is also frequently used as a partition panel. Partition panels made from polycarbonate provide a modern and sleek look while creating separate spaces within a larger area. They are often used in offices, commercial buildings, and even residential spaces to create privacy and divide different areas without completely blocking off the light.

A girder, top chord, and purlin are all components of a truss system. However, a girt is not part of the truss system. A girt is a horizontal structural member that is typically used to support the exterior walls of a building. While it may be used in conjunction with a truss system, it is not considered a part of the truss itself.

A girt is not part of the truss system. Trusses are structural frameworks made of beams or bars that are connected to form triangular shapes. They are commonly used in construction to support roofs, bridges, and other structures. The girder, top chord, and purlins are all components of a truss system. However, a girt is a horizontal structural member that is typically used in the construction of walls, not trusses. It is usually located at the mid-height of the wall and provides additional support and stability.

Asphalt shingles are made of thermoplastic material and have strips that, when exposed to the sun's heat, will melt and bind the shingles together, creating a solid roof. This characteristic allows the shingles to effectively protect the building from water and other elements.

Asphalt roofing is ideal for structures near the sea because it is highly resistant to saltwater corrosion and can withstand the harsh coastal environment. The asphalt material provides excellent protection against moisture, wind, and UV rays, making it a durable and long-lasting option for coastal areas. Additionally, asphalt roofing is also known for its ability to resist algae and moss growth, which can be common in humid coastal climates.

Waterproofing is a protective coating or treatment that prevents water from penetrating a surface. However, it can be rendered ineffective or damaged when it comes into direct contact with acids and alkali. These substances have corrosive properties that can break down the waterproofing material, compromising its ability to keep water out. Therefore, acids and alkali transmitted by direct contact can undermine the effectiveness of waterproofing. Moisture, temperature, and applying waterproofing to a wet surface may affect its performance but are not specifically mentioned as factors that can render it ineffective or damaged.

Neoprene is the correct answer because it is a type of synthetic rubber that is commonly used for rubber washers on tekscrews used for steel purlins. Neoprene is known for its excellent resistance to weather, ozone, oil, and chemicals, making it a suitable material for sealing applications. It provides a tight seal between the tekscrew and the steel purlin, preventing water or other substances from penetrating the connection point.

A bird's mouth is a right angled notch cut on the underside of a rafter to fit over a longitudinal member. This type of cut allows the rafter to securely connect with the longitudinal member, providing stability and support to the structure. The bird's mouth cut is commonly used in construction to create a strong joint between the rafter and the longitudinal member, ensuring the structural integrity of the building.

Corrugated GI sheet is the ideal type of roofing for an industrial plant where toxic fumes are emitted because it is durable, resistant to chemicals, and has excellent ventilation properties. The corrugated design allows for better airflow, which helps in dispersing the toxic fumes and preventing any buildup of harmful gases. Additionally, GI (galvanized iron) sheet is known for its strength and corrosion resistance, making it suitable for industrial environments.

The figure shown above is a valley gutter.

Galvanized roofing refers to a roofing material that has been coated with zinc on all sides. This zinc coating provides protection against corrosion and extends the lifespan of the roofing material. By coating the roofing on all sides, it ensures that all surfaces are protected from moisture, rust, and other damaging elements. This makes galvanized roofing a durable and reliable option for various construction projects.

Light gauge metal channel is used for purlins for GI roofing. Purlins are horizontal structural members that provide support for the roof deck and help to distribute the weight of the roof covering evenly. Light gauge metal channel is a common choice for purlins as it is lightweight, strong, and resistant to corrosion. It is also easy to install and cost-effective. Therefore, light gauge metal channel is the preferred material for purlins in GI roofing.

A ridge beam is a horizontal beam that runs along the top of the rafters at the ridge of a roof. Its purpose is to provide support and stability to the upper ends of the rafters, ensuring that they are held in place and can withstand the weight and pressure of the roof. The ridge beam helps to distribute the load evenly across the rafters, preventing any sagging or structural issues in the roof. It plays a crucial role in maintaining the integrity and strength of the roof structure.

The ideal way of insulating the roof is by having a roofing sheet, followed by an air space or gap, and then aluminum insulation. This arrangement helps to create a barrier between the roof and the interior of the building, preventing heat transfer and improving energy efficiency. The air space or gap acts as a buffer, reducing the direct contact between the roofing sheet and the insulation, which can enhance the insulation's effectiveness. The aluminum insulation provides an additional layer of thermal protection, reflecting heat away from the roof and keeping the interior cooler.

The reason the water proofing on the roof deck failed is not because it melts in the rain. Melting in the rain is not a factor that contributes to the failure of water proofing. The other options, such as corners not being properly sealed, lack of proper protection by flashing, and installation defects, are more likely reasons for the failure.

Polycarbonate is the ideal type of roof for a greenhouse because it allows maximum sunlight penetration while providing insulation and durability. Polycarbonate roofs are lightweight, UV resistant, and have excellent thermal properties, creating a controlled environment for plants to thrive. The material also offers high impact resistance and is easy to install and maintain. Additionally, polycarbonate roofs are cost-effective and can be customized to fit different greenhouse designs and sizes.

Gutter and roof accessories are thicker than the roof because they are designed to provide additional support and protection to the roof. These accessories, such as gutters, downspouts, and flashing, are typically made from durable materials like metal or PVC, which need to be thicker in order to withstand the elements and prevent leaks or damage. The roof itself may have different layers or materials, but the accessories are specifically designed to be thicker to ensure their functionality and longevity.

The minimum side lapping for corrugated GI roofing is 1 1/2". This means that when installing the roofing sheets, each sheet should overlap the adjacent sheet by at least 1 1/2" on the sides. This is important to ensure proper water drainage and prevent leaks.

A pantile is a roofing tile with an "S"-shaped cross section, where the downturn of one tile overlaps the upturn of the next tile in the same course. This design allows for better water drainage and prevents water from seeping through the roof. The term "pantile" is commonly used to describe this type of roofing tile.

The minimum end lapping for corrugated GI roofing is 30 cm. This means that when installing the roofing sheets, the end of one sheet should overlap the end of the adjacent sheet by at least 30 cm. This helps to ensure a secure and watertight connection between the sheets, preventing any leakage or damage from occurring.

A 3/16" thick membrane is the best option for waterproofing balconies, roof decks, and basements. This thicker membrane provides more durability and protection against water penetration compared to the other options listed. It is able to withstand potential wear and tear, as well as resist water pressure effectively. This makes it an ideal choice for areas that are prone to moisture and potential water damage.

A batten nail is used to hold a horizontal batten on top of corrugated sheathing. The batten nail is specifically designed to secure the batten, which is a thin strip of material, to the corrugated G.I. sheet. This helps to provide stability and support to the sheathing, ensuring that it remains securely in place. The other options, such as the corrugated G.I. sheet, vertical batten, and bead, are not specifically used for holding the horizontal batten on top of the sheathing.

Clay tile is the ideal roofing option for houses located at coastal areas. This is because clay tiles are highly durable and resistant to the harsh coastal climate, including strong winds, saltwater, and humidity. Clay tiles also have excellent thermal insulation properties, which help to keep the house cool in hot coastal environments. Additionally, clay tiles have a long lifespan and require minimal maintenance, making them a practical choice for coastal homes.

A blind rivet is used for aluminum roofing and consists of a pin head and a long shank. It is a type of fastener that is inserted into pre-drilled holes and then secured by pulling the pin, which causes the shank to expand and create a tight connection. This type of rivet is commonly used in construction and manufacturing industries for joining materials together in a secure and efficient manner.

Staple wires are the type of nails used for asphalt shingles. They are commonly used because they provide a secure and long-lasting attachment to the shingles. Staple wires are designed to penetrate the asphalt shingles and hold them in place, ensuring that they do not lift or become loose over time. This type of nail is specifically designed for use with asphalt shingles and is the preferred choice for roofing installations.