FGIA FenestrationMasters

The North American Fenestration Standard NAFS (AAMA/WDMA/CSA 101/I.S.2/A440) classifies windows and doors into four performance classes. Which performance class is intended for light commercial applications exposed to moderate wind loads?

• AResidential (R)
• BLight Commercial (LC)
• CCommercial (CW)
• DArchitectural (AW)

Under NAFS, what does the Design Pressure (DP) rating of a window represent?

• AThe static air pressure differential (in psf) a product is designed to resist without exc…
• BThe maximum water pressure the unit can withstand during a hurricane flood event
• CThe thermal resistance of the glazing unit under wind-driven rain conditions
• DThe minimum installation fastener spacing required by the manufacturer

ASTM E283 is the standard test method used to evaluate which fenestration property?

• AAir infiltration/exfiltration
• BWater penetration resistance under dynamic pressure
• CUniform static load resistance
• DImpact resistance from wind-borne debris

Which ASTM test method evaluates water penetration resistance of windows under cyclic static pressure?

• AASTM E547
• BASTM E283
• CASTM E330
• DASTM E2112

ASTM E330 is the standard test method for evaluating which performance property of fenestration assemblies?

• AStructural performance under uniform static air pressure difference
• BAir leakage under steady-state pressure differential
• CWater penetration under dynamic cyclic pressure
• DThermal transmittance (U-factor) of glazing systems

What does U-factor measure in a fenestration product?

• AThe rate of non-solar heat transfer through the product (lower = better insulation)
• BThe fraction of solar radiation transmitted through the glazing
• CThe visible light transmission of the glazing assembly
• DThe resistance of the frame to condensation at low temperatures

Solar Heat Gain Coefficient (SHGC) describes which property of a glazing system?

• AThe fraction of incident solar radiation (direct plus re-radiated) admitted through the w…
• BThe U-factor divided by the window area in square feet
• CThe rate at which visible light passes through the glass in lumens per watt
• DThe ratio of argon fill to air in an insulating glass unit

Condensation Resistance Factor (CRF) for a fenestration product is primarily a measure of what?

• AThe ability of the product's interior surfaces to resist condensation at low outdoor temp…
• BThe rate of moisture transmission through the glazing sealant system
• CThe amount of desiccant required to maintain dew point in an IG unit
• DThe exterior surface temperature during a summer cooling design day

Which frame material typically offers the lowest U-factor (best thermal performance) for residential windows?

• AAluminum without thermal break
• BVinyl (PVC)
• CClear anodized aluminum with 1/4" thermal break
• DSingle-pane wood with oil-based paint

A warm-edge spacer system in an insulating glass (IG) unit is used primarily to:

• AReduce thermal bridging and condensation at the glass edge
• BIncrease the argon fill pressure above atmospheric
• CSecure the Low-E coating to the glass surface
• DProvide structural support for oversized glazing panels

Low-E (low-emissivity) coatings on insulating glass units primarily reduce heat transfer by:

• AReflecting long-wave infrared radiation emitted by interior surfaces back into the room
• BAbsorbing visible light to reduce glare on the interior surface
• CIncreasing the conductive resistance of the glass lite itself
• DFiltering ultraviolet radiation to protect furnishings

Argon gas filling in an insulating glass unit improves energy performance primarily by:

• AReducing convective and conductive heat transfer across the cavity compared to air
• BIncreasing the reflectance of infrared radiation from interior surfaces
• CRaising the SHGC to allow more solar heat gain in cold climates
• DPreventing desiccant saturation by eliminating moisture from the cavity

ENERGY STAR climate zones for fenestration are defined based on:

• AHeating and cooling degree days across Northern, North-Central, South-Central, and Southe…
• BState political boundaries only
• CSeismic zone as defined by ASCE 7
• DAltitude above sea level and annual snowfall

NFRC labeling provides certified ratings for which set of properties?

• AU-factor, SHGC, Visible Transmittance (VT), Air Leakage (AL), and Condensation Resistance…
• BDesign Pressure, structural class, water test pressure, and DP rating only
• COnly U-factor and SHGC — other properties are optional
• DStructural, impact, and acoustic performance ratings

The ASTM E2112 standard practice covers which aspect of fenestration work?

• AInstallation of exterior windows, doors, and skylights
• BLaboratory testing of air infiltration through fenestration products
• CStructural design of curtain wall anchors and supports
• DField application of two-component structural silicone sealants

In fenestration installation per ASTM E2112, a primary water control strategy relies on:

• AA drainage plane with lapped flashing that directs water to the exterior
• BFilling the entire rough opening with expanding foam sealant
• CApplying sealant on both the interior and exterior face of the frame simultaneously
• DInstalling a vapor barrier behind the window flange on all four sides

AAMA 808 specifies a sealant used primarily for:

• ASealing the perimeter joint between a window frame and the surrounding construction
• BBonding structural glass to aluminum curtain wall frames
• CApplying a glazing compound between the glass and the frame rabbet
• DWaterproofing the interior face of a curtain wall spandrel panel

Stick-built curtain wall differs from unitized curtain wall systems primarily in that:

• AStick-built is assembled piece-by-piece on the building, while unitized panels are pre-as…
• BStick-built systems always use pressure-equalized rain screen design, while unitized syst…
• CUnitized systems require structural silicone glazing, while stick-built systems require m…
• DStick-built is limited to Residential (R) performance class, while unitized qualifies for…

Structural Silicone Glazing (SSG) per ASTM C1401 relies on silicone to provide which structural function?

• ATransferring wind loads from the glass to the aluminum structural frame members
• BActing as the primary thermal break between the glass and the frame
• CProviding the air seal on the interior face of the curtain wall system
• DReplacing the need for weep holes in the curtain wall pressure-equalized cavity

Miami-Dade TAS 201 is a test for fenestration used specifically in hurricane impact applications. What does TAS 201 evaluate?

• ALarge missile impact resistance (a 9-lb 2×4 at 50 ft/s) and subsequent cyclic pressure te…
• BWater penetration resistance of the unit under hurricane rainfall simulation
• CStructural capacity of the unit under 180 mph wind loads without projectile testing
• DAir infiltration under tropical storm conditions per ASHRAE procedures

ASTM E1996 is the specification for fenestration products in wind-borne debris regions. It classifies missile levels as:

• AMissile Level A (small missiles) through Missile Level E (large 9-lb 2×4 lumber)
• BCategory 1 through Category 5 corresponding to Saffir-Simpson hurricane categories
• CMissile Zones 1 through 3 based on proximity to the coast
• DLevel I (10-lb steel ball) through Level IV (large structural lumber at 80 ft/s)

The Florida Building Code designates a 'High Velocity Hurricane Zone' (HVHZ) that encompasses:

• AMiami-Dade and Broward counties, requiring the most stringent impact product approval
• BAll Florida counties south of Orlando within 3 miles of the coast
• CEntire state of Florida when a hurricane watch is declared by the NWS
• DOnly coastal counties in the Florida Keys and Monroe County

Under the IECC 2021, fenestration U-factor requirements are most stringent in which climate zone?

• AClimate Zone 7 and 8 (subarctic/arctic, e.g., northern Alaska)
• BClimate Zone 1 (hot humid, e.g., Hawaii, southern Florida)
• CClimate Zone 4 (mixed-humid, e.g., Maryland, northern Georgia)
• DClimate Zones are identical — IECC uses a single national U-factor requirement

ASHRAE 90.1 establishes commercial building envelope requirements. For fenestration, 90.1 generally limits which two properties?

• AMaximum assembly U-factor and maximum SHGC based on climate zone and orientation
• BMinimum visible transmittance and maximum window-to-wall ratio only
• CMaximum air leakage and minimum structural DP rating for each climate zone
• DOnly maximum SHGC for south-facing glazing — no U-factor limit in commercial buildings

A specifier selecting windows for a multistory commercial office building in Climate Zone 5 needs to meet IECC 2021 requirements. Which combination of properties must be verified on the NFRC label?

• AU-factor ≤ the code maximum and SHGC ≤ the code maximum for Zone 5 vertical fenestration
• BOnly the structural DP rating from NAFS testing — energy compliance is handled separately…
• CVisible Transmittance ≥ 0.40 and air leakage ≤ 0.20 cfm/ft² — these are the only IECC com…
• DSHGC ≤ 0.25 on all orientations regardless of climate zone when glazing exceeds 40% of wa…

The pressure-equalized rain screen (PERS) design principle in curtain wall water management works by:

• AEqualizing air pressure in the glazing cavity with outside air, eliminating the inward pr…
• BApplying a continuous exterior sealant bead to create a sealed barrier against all rain p…
• CDirecting water through interior drainage channels to floor drains in each story
• DUsing a secondary structural silicone seal as the primary water management line

In a pressure-equalized rain screen curtain wall, what is the primary function of baffles at horizontal joints?

• ATo create compartmentalization so that each bay is independently pressure-equalized
• BTo structurally transfer mullion loads to the building floor slab
• CTo provide the primary thermal break between interior and exterior aluminum
• DTo hold sealant in place during the initial cure period

Which NAFS performance class is required for windows installed in a high-rise office building exposed to design wind pressures of 60 psf or more?

• AArchitectural (AW)
• BCommercial (CW)
• CLight Commercial (LC)
• DResidential (R)

When a fenestration product's label shows 'DP 50' under NAFS, this indicates the product has been tested and rated to resist a design pressure of:

• A50 pounds per square foot (psf) in both positive (inward) and negative (outward) directio…
• B50 kPa which is approximately 1,044 psf
• C50 mph equivalent wind speed
• D50% of the ultimate failure load with a 2× safety factor applied

Which of the following correctly describes the NAFS gateway test pressure for water penetration for a product with DP 35 rating?

• AWater test pressure is 15% of DP (0.15 × 35 = 5.25 psf) up to a maximum of 15 psf
• BWater test pressure equals the full DP (35 psf) to replicate the worst-case storm
• CWater test pressure is fixed at 6.24 psf for all products regardless of DP
• DWater test pressure is 50% of DP (17.5 psf) for all NAFS performance classes

Fiberglass (pultruded glass fiber reinforced polymer) window frames offer which primary advantage over aluminum frames?

• ANear-zero thermal conductivity compared to aluminum, eliminating the need for a thermal b…
• BLower material cost than aluminum for standard residential sizes
• CHigher structural stiffness (modulus of elasticity) than aluminum
• DBetter resistance to UV-driven color fading than vinyl or painted aluminum

A 'thermally broken' aluminum frame contains which internal component to improve thermal performance?

• AA low-conductivity polyamide or polyurethane 'pour-and-debridge' insert that separates in…
• BA layer of closed-cell spray foam injected into the aluminum extrusion cavity
• CAn argon-filled channel embedded within the aluminum profile wall
• DA vinyl gasket bonded to the interior face of the aluminum frame

Triple-pane (triple-glazed) insulating glass units improve thermal performance compared to double-pane units primarily by:

• AAdding a third glass lite with two gas-filled cavities, reducing center-of-glass U-factor…
• BTripling the SHGC value to allow more solar heat gain in cold climates
• CEliminating the need for Low-E coatings by using an additional glass reflectance layer
• DReducing visible transmittance to less than 0.10 for improved solar control

In glazing specification, 'Visible Transmittance' (VT) is defined as:

• AThe fraction of visible light (380-780 nm wavelength) transmitted through the glazing ass…
• BThe total light reflectance off the exterior glass surface as a percentage
• CThe glazing's ability to transmit infrared radiation for passive solar heating
• DThe percentage of ultraviolet light blocked by the glass to protect interior furnishings

A manufacturer lists a product as 'AAMA Gold Label certified.' What does AAMA Gold Label certification signify?

• AThe product has been independently tested and verified to meet AAMA/WDMA/CSA 101/I.S.2/A4…
• BThe product has passed ENERGY STAR qualification for the Northern climate zone
• CThe product has achieved the highest level of NFRC thermal certification
• DThe product has completed Miami-Dade NOA testing for hurricane impact resistance

Which sealant type specified in AAMA standards is most appropriate for structural silicone glazing applications?

• ASingle-component or two-component silicone per ASTM C1184 or C920, evaluated for structur…
• BAcrylic latex sealant per AAMA 802 — selected for paintability over glass substrates
• CPolyurethane foam backer rod per AAMA 810 — provides compression-fit sealing
• DButyl rubber glazing tape per AAMA 812 — provides durable glass-to-frame bond

What is the primary purpose of a 'setting block' in window and curtain wall glazing?

• ATo support the weight of the glass at the bottom of the frame and prevent it from resting…
• BTo center the glass horizontally within the frame rebate for equal sight line margins
• CTo apply the correct compression to the glazing gasket during glass installation
• DTo temporarily hold the glass in position until the structural silicone cures

A storefront system differs from a curtain wall system primarily in that:

• AStorefront is a non-load-bearing ground-floor system that transfers loads to the building…
• BStorefront always uses structural silicone glazing, while curtain wall uses mechanical ca…
• CStorefront is required by code to be impact-rated in all coastal locations, while curtain…
• DStorefront handles gravity loads from the building roof, while curtain wall handles only…

In hurricane-impact glazing, laminated glass provides protection by:

• ARetaining glass fragments within the interlayer (PVB or SGP) after impact, maintaining th…
• BHardening the glass surface so projectiles bounce off without penetration
• CAllowing the glass to flex and absorb energy from the missile without fracturing
• DReducing wind load on the building by breaking cleanly and reducing cross-section

The FGIA FenestrationMasters certification program is administered by which organization?

• AFGIA (Fenestration and Glazing Industry Alliance), formed from the merger of AAMA and IGMA
• BNFRC (National Fenestration Rating Council) as part of its thermal certification program
• CANSI (American National Standards Institute) as a product manufacturer certification
• DASTM International's building products certification division

The IGMA (Insulating Glass Manufacturers Alliance) component of FGIA primarily addresses standards for:

• AInsulating glass unit manufacturing, durability testing, and seal system standards (ASTM…
• BWindow and door structural performance testing per NAFS
• CInstallation practices for exterior fenestration per ASTM E2112
• DENERGY STAR climate zone certification for residential products

What is the purpose of desiccant within an insulating glass unit spacer?

• ATo absorb residual moisture in the sealed cavity and prevent condensation on interior gla…
• BTo improve thermal conductivity across the cavity gap for better U-factor performance
• CTo provide adhesion between the spacer and the glass surface
• DTo generate argon gas gradually as a replacement for factory-charged fill

In fenestration installation, 'flashing' at the window sill is primarily intended to:

• ADirect water that enters the window-to-wall interface to the exterior of the building
• BProvide a rigid structural support for the window frame at the sill
• CSeal air infiltration paths between the window frame and the rough opening
• DProvide fire-resistance rating at the window perimeter for code compliance

AAMA 812 specifies which type of fenestration sealant product?

• AGlazing tape for use between glass and frame in dry-glazed systems
• BTwo-component polyurethane for exterior perimeter joints
• CSingle-component silicone for structural SSG applications
• DAcrylic latex caulk for interior trim joints

Under ASTM E1996 requirements for wind-borne debris regions, which glazed area height threshold triggers small missile (Missile Level A) testing instead of large missile (Missile Level E) testing?

• AGlazed areas above 30 feet from grade require only Missile Level A (small missile) testing
• BGlazed areas above 10 feet from grade use small missiles — below 10 feet uses large missi…
• CThe threshold is 50 feet from grade; above 50 feet no impact testing is required
• DThere is no height threshold — all glazing in wind-borne debris regions requires large mi…

When specifying a curtain wall product for LEED v4 credit compliance related to daylighting, which glazing property is most directly relevant?

• AVisible Transmittance (VT) — higher VT means more useful daylight delivered to occupants
• BSolar Heat Gain Coefficient (SHGC) — higher SHGC maximizes solar energy input
• CU-factor — lower U-factor maximizes thermal comfort near glazing
• DDesign Pressure (DP) — structural performance determines daylight opening size

The Light-to-Solar Gain (LSG) ratio is calculated as:

• ALSG = VT / SHGC
• BLSG = SHGC / U-factor
• CLSG = VT × U-factor
• DLSG = SHGC / CRF