For existing low-slope office roofs in North Texas (TPO/PVC retrofits over steel or concrete decks), the backbone is the single-ply membrane, cover board, insulation, and attachment system.
Single-ply membranes
• Carlisle SynTec – Sure-Weld TPO Reinforced Membrane: A heat-weldable TPO sheet offered in 45, 60, and 80 mils, designed for new and re-roof applications with high UV and puncture resistance.
Link: Carlisle Sure-Weld TPO Reinforced Roofing Membrane
• Elevate (Firestone / Holcim) – UltraPly TPO: Highly reflective TPO membrane aimed at flat and low-slope commercial roofs, with hot-air welded seams and good chemical and UV resistance—well suited to hot, sunny climates like North Texas.
Link: UltraPly TPO Roofing Membrane
Cover boards and protection
• Georgia-Pacific – DensDeck Roof Board: Non-combustible gypsum-based cover board that improves fire resistance, dimensional stability, and hail/wind performance when installed in a properly engineered assembly.
Link: DensDeck Roof Board
• Georgia-Pacific – DensDeck StormX / Prime / ProFast lines: Enhanced moisture-resistant and hail-rated versions used where Very Severe Hail (VSH) ratings or accelerated installation are required on North Texas roofs.
Info: DensDeck Roof Board Family
Insulation (typical materials – you would select thickness and facer based on R-value and FM approvals)
• Polyiso roof insulation boards (various manufacturers: Carlisle, GAF, Johns Manville, etc.) – commonly used in tapered layouts for drainage on retrofits.
• High-density polyiso or gypsum cover boards above primary insulation for hail and traffic resistance.
Fasteners, plates, adhesives, and accessories
• OMG Roofing Products – structural screw/plate fastening systems (not linked to a specific product, but industry standard for mechanically attached assemblies).
• Elevate – UltraPly TPO Accessories: Pipe boots, split boots, pre-formed corners, bonding adhesives, etc., engineered to integrate with UltraPly TPO systems so that penetrations, curbs, and terminations stay within the warranty envelope.
Link: UltraPly TPO Accessories (Elevate/Firestone)
For North Texas, hail is a major driver: assemblies often combine thick TPO (60 or 80 mil), a DensDeck cover board, and FM-approved fastening patterns to obtain UL 2218 Class 4 hail ratings and VSH approvals. Carlisle’s Sure-Weld line, for example, is available in thicknesses and configurations that carry Class 4 hail ratings and Miami-Dade approvals when used in specific assemblies.
On re-roof projects, you’ll routinely specify compatible system accessories from the same manufacturer—pre-molded corners, curb flashings, walkway pads, and sealants—to keep the warranty intact. For occupied mid-rise offices, white or light-colored TPO membranes are usually favored to reduce cooling loads in hot North Texas summers, and most of the above product families offer high solar reflectance options.
EXTERIOR WALLS, AIR BARRIERS & CLADDING
Existing office buildings in North Texas often get façade repairs or over-cladding to improve energy performance and deal with water intrusion. Typical material families include fluid-applied air barriers, continuous insulation EIFS systems, and advanced claddings.
Fluid-applied air and water barriers
• Tremco – ExoAir 230 / 230LT: A vapor-permeable, fluid-applied air barrier used over exterior sheathing or concrete, offering up to 12 months of UV exposure and service temperatures up to 240°F. It can be roller, spray, or trowel applied and is NFPA 285 tested.
Link: ExoAir 230 / 230LT Fluid-Applied Air & Vapor Permeable Membrane
Continuous insulation EIFS systems
• Sto Corp – StoTherm ci: An EIFS with drainage, combining StoGuard air/water-resistive barrier, EPS insulation, and a variety of textured finishes. Provides continuous insulation, drainage, and aesthetic flexibility—common for reclads and infill walls.
Link: StoTherm ci
• Sto Corp – StoTherm ci GPS: Uses graphite-enhanced EPS (GPS) to achieve high R-values (up to R-56 continuous) while maintaining drainage and integrated StoGuard AWRB.
Link: StoTherm ci GPS
• StoTherm ci MVES: Designed for use with adhered masonry veneers (thin brick, stone, tile) where you want a masonry appearance but need modern CI and moisture management.
Link: StoTherm ci MVES
These systems integrate air/water barriers, insulation, drainage, and finishes in one tested assembly. For North Texas, the drainage plane and robust air barrier are critical due to wind-driven rain combined with large temperature swings, especially on retrofits over older sheathing.
Curtain wall and punched opening framing
• Kawneer – 1600 Wall System 1: Outside-glazed aluminum curtain wall system with a 2-1/2” sightline and 6” or 7-1/2” depth, designed for low- to mid-rise applications, with thermal breaks and options for hurricane/impact resistance.
Link: Kawneer 1600 Wall System 1 Curtain Wall
• Kawneer – 1600UT System 1/2 and 1600 Wall System 2: Ultra-thermal and structural silicone glazed variants used when you’re upgrading the envelope performance and aesthetics while keeping existing spandrel layouts.
Links:
Typical cladding materials paired with the above include aluminum composite panels, formed metal panels (PAC-CLAD, Centria, etc.), high-pressure laminates, and fiber-cement rainscreen panels. In North Texas, durable coatings and robust attachment systems are key to resisting UV exposure and thermal movement.
WINDOWS, CURTAIN WALL GLAZING & GLASS
For existing buildings, glazing work often includes replacing failed IGUs, upgrading to low-E glass, or re-framing openings.
Curtain wall framing (see section 2 for framing systems) is typically combined with high-performance insulating glass units: low-E coated glass, warm edge spacers, argon filling, and sometimes laminated glass for acoustics and safety.
Representative systems and materials
• Kawneer 1600 Series framing combined with industry-standard IGUs from fabricators such as Viracon or Oldcastle BuildingEnvelope (not a specific link here, but these are commonly specified for commercial low-E glass with performance tuned to solar heat gain coefficients appropriate for North Texas).
You would typically specify:
– 1” IGU with low-E coating tuned for hot climates (e.g., low SHGC on west/south elevations).
– Clear inside lite and tinted or reflective outer lite as desired.
– Warm-edge spacers for condensation resistance.
Silicone sealants and glazing gaskets from Dow, Tremco, or Sika are selected to match the system’s movement and UV exposure characteristics. For retrofits, you often retain the existing aluminum frame if structurally sound and reglaze with new IGUs plus new gaskets.
Because this category is heavily custom and façade-engineer-driven, product selection is job-specific. The curtain wall product pages in section 2 provide the framing; glass fabricators then provide performance data and IGU make-ups to meet North Texas energy code and glare control targets.
STRUCTURAL CONCRETE & STEEL REPAIR
Structural repair materials are critical for parking decks, elevated slabs, and structural elements exposed to moisture and de-icing salts, even in relatively mild North Texas winters.
Cementitious repair mortars
• Sika – SikaTop-123 Plus: A two-component, polymer-modified, Portland cement-based, fast-setting, non-sag mortar with an integrated corrosion inhibitor for reinforcing steel. It’s designed for vertical and overhead repairs, ideal for columns, beams, and soffits in garages and podium slabs.
Link: SikaTop-123 Plus
Epoxy and anchoring systems (typical examples)
• Sika, Hilti, and Simpson Strong-Tie each offer anchor epoxy adhesives, doweling adhesives, and crack-injection resins for anchoring new steel into existing concrete or sealing moving/non-moving cracks. Product choice is based on load, edge distance, and installation temperatures common in North Texas (high heat often drives selection of specific formulations).
Rebar, coatings, and corrosion mitigation
• Epoxy-coated or galvanized reinforcing bars for replacement steel.
• Epoxy-based rebar coatings and zinc-rich primers used to protect existing bars exposed during chipping and prep.
• Additional corrosion-mitigation products (like Sika FerroGard or similar) where long-term durability is critical.
Repair mortars for horizontal decks
• Flowable, shrinkage-compensated repair concretes (from Sika, Master Builders, Five Star, etc.) designed for full-depth or partial-depth deck repairs, chosen for set time and strength development appropriate to hot weather placements.
Structural studs and framing (when existing load paths are modified)
• ClarkDietrich – Structural Studs and ProSTUD drywall framing can be used where interior non-loadbearing walls need to meet taller limiting heights or increased lateral loading; structural studs are chosen based on tables and design loads.
Links:
ProSTUD Drywall Framing System
ClarkDietrich Structural Studs
For North Texas, you’ll often see spalled concrete at parking decks and at exposed slab edges due to moisture and thermal cycles rather than freeze-thaw. Fast-setting repair mortars allow overnight or weekend work so office tenants can reoccupy the structure quickly.
INTERIOR PARTITIONS, GYPSUM & FRAMING
Office interior reconfigurations are constant in multi-tenant buildings. Standard materials are fire-rated gypsum panels and light-gauge steel studs.
Gypsum board
• USG – Sheetrock Brand Firecode X (Type X) Panels: 5/8” fire-resistant gypsum panels with a non-combustible core and recycled face/back papers, UL-classified for fire resistance. Used in 1- and 2-hour rated wall and ceiling assemblies.
Link: Sheetrock Brand Firecode X Panels
• USG – Sheetrock Brand Mold Tough and moisture-resistant boards in restrooms, pantries, and other humid areas.
Steel studs and track
• ClarkDietrich – ProSTUD Drywall Framing System: High-strength, lightweight steel studs and track with stiffening grooves and diamond-embossed webs, which increase limiting heights and reduce screw spinout. Widely used in commercial interiors.
Link: ProSTUD Drywall Framing System
• Deflection track and head-of-wall components are used to accommodate vertical building movement, important in mid-rise frames where differential movement occurs between slab and partition walls.
Joint treatment and accessories
• USG joint compounds, tape, corner beads, and fire-caulking systems used to complete UL-rated assemblies.
• Sound-damping sealants around perimeters for acoustically sensitive tenant demising partitions.
In North Texas, code-driven fire resistance (Type I/II construction) and acoustics between tenants drive selection of 5/8” Firecode panels and heavier or double-layer build-ups in corridors and shafts. Height, deflection criteria, and door opening configurations affect stud gauge and spacing.
CEILINGS & ACOUSTICAL TREATMENTS
Suspended acoustical ceilings remain predominant in office retrofits, especially for corridors, open office zones, and support spaces.
Acoustical ceiling tiles
• Armstrong – ULTIMA Lay-In and Tegular: Smooth-surface mineral-fiber panels offering “Total Acoustics” performance (balanced absorption and blocking), with low embodied carbon and energy-saving options.
Link: ULTIMA Lay-In and Tegular Ceiling Tiles
Key characteristics include high light reflectance (useful for deeper office floor plates), impact and scratch resistance, and availability in multiple edge profiles and sizes (2x2, 2x4). High-NRC versions are used in conference rooms and call centers where acoustic control matters.
Grid and suspension systems
• Compatible 9/16” or 15/16” T-bar grid systems (Armstrong, USG, Chicago Metallic) selected to coordinate with tile type and load (lights, diffusers, access panels).
In North Texas offices, ceiling upgrades often accompany lighting retrofits: old lay-in troffers are replaced with LED panels (see section 9) and new high-performance tiles to improve acoustics in open office layouts.
FLOORING SYSTEMS (CARPET TILE, LVT, RUBBER)
Durable, easily replaced modular flooring is standard for modern office fit-outs.
Carpet tile
• Interface – Modular Carpet Tile: Broad family of commercial carpet tiles with solution-dyed nylon and high-performance backing, all carbon-neutral. Commonly used for open office, corridors, and conference rooms.
Catalog: Interface Commercial Carpet Tile
• Example product: “The Standard” carpet tile (19.69” x 19.69”, tufted textured loop pile), a non-directional pattern that simplifies installation and replacement in tenant spaces.
Link: Interface The Standard Carpet Tile
Resilient flooring (LVT, rubber, sheet)
• Interface – Luxury Vinyl Tile and nora rubber lines for resilient surfaces in elevator lobbies, pantries, copy rooms, and back-of-house areas; these integrate visually with their carpet tile systems.
Other major manufacturers used in North Texas offices include Shaw Contract, Tarkett, and Armstrong for LVT and VCT. Selection is driven by foot traffic, rolling loads (chairs, carts), and ease of replacement in 24/7 multi-tenant environments.
Underlayments and transition trims
• Cementitious self-leveling underlayments (Ardex, Mapei, etc.) where existing slabs are irregular.
• Rubber or metal transition strips at doorways and changes in flooring type to meet ADA and durability requirements.
Given the hot, dusty environment, stain resistance and easy maintenance are big concerns; solution-dyed fibers and robust backings are prioritized so tiles can be spot-replaced rather than re-carpeting entire suites.
MECHANICAL / HVAC EQUIPMENT & CONTROLS
On existing mid-rise offices in North Texas, packaged rooftop units (RTUs) and VAV systems are common. Retrofit materials include the units themselves, curb adapters, ductwork, controls, and accessories.
Packaged rooftop units
• Trane – Voyager Series Packaged Rooftop Units: Available in a wide tonnage range, ASHRAE 90.1 and ENERGY STAR compliant, and offered with high-efficiency options like eFlex variable-speed compressors and fans.
Link: Trane Packaged Rooftop Units – Voyager
These RTUs are frequently used as like-for-like replacements on existing roofs, with curb adapters fabricated to fit existing penetrations, minimizing roof work.
Ductwork, terminals, and diffusers
• Galvanized sheet metal ductwork with internal or external insulation as needed for energy and condensation control.
• VAV terminal units, ceiling diffusers, and return grilles from Titus, Price, etc., sized to meet Texas building code ventilation and comfort requirements.
Controls
• DDC systems from Trane, Johnson Controls, Honeywell, or others, integrating RTU staging, VAV control, and scheduling to handle the high cooling loads and shoulder-season conditions typical of North Texas.
Ancillary materials include vibration isolators, curbs, economizer dampers, and filters. On office retrofits, energy code compliance often drives upgrades to higher-efficiency equipment and better control sequences.
ELECTRICAL DISTRIBUTION, LIGHTING & LOW VOLTAGE
Modern office retrofits nearly always touch power distribution and lighting, often to support new tenants and energy-efficient LED upgrades.
Panelboards and load centers
• Schneider Electric – Square D QO Load Centers: Widely used load centers with plug-on neutral options for fast installation and copper bus bars, UL-listed for commercial power distribution.
Link: Square D QO Load Centers
Lighting – LED panels and troffers
• Lithonia Lighting (Acuity Brands) – CPX LED Panel: Edge-lit flat panel luminaires designed for commercial ceilings, providing a smooth, even lens and high efficacy. Ideal for budget-conscious office and school projects.
Links:
Contractor Select CPX 2x4 Flat Panel
These are common replacements for 2x4 fluorescent troffers in North Texas offices, offering 4000K “cool white” color temperature (typical for office environments) and long service life.
Low-voltage and devices
• Switches, receptacles, and dimmers from Legrand, Lutron, etc., including 0-10V dimming interfaces for LED drivers.
• Data cabling (Cat6 / Cat6A), patch panels, and racks from Panduit, Leviton, or equivalent.
In retrofits, electrical rooms are often constrained; compact, high-circuit panelboards and careful coordination with mechanical loads (for RTUs, data rooms) are key to avoiding costly service upgrades.
PLUMBING, PIPING & FIRE PROTECTION
Restroom and core upgrades, plus code-compliant fire protection, round out the building systems package.
Domestic water and DWV piping
• Copper, PEX, or CPVC for domestic water, and PVC or cast iron for DWV, depending on building standards and fire ratings.
• Mechanical grooved couplings for large-diameter HVAC and fire protection piping.
Grooved piping systems
• Victaulic – QuickVic Style 107N Rigid Coupling: An installation-ready rigid grooved coupling for 2”–12” carbon steel piping, rated up to 750 psi, used in fire protection and mechanical systems.
Link: Victaulic QuickVic Style 107N Rigid Coupling
Commercial toilets and fixtures
• Zurn – EcoVantage HET Floor-Mount Toilet Systems (e.g., Z5655-BWL1): High-efficiency (1.1 gpf) floor-mounted systems designed to reduce water consumption by about 31% versus traditional 1.6 gpf toilets.
Link: Zurn EcoVantage HET Floor-Mount Toilet
• Kohler – Kingston Series Commercial Bowls: Wall-mounted and floor-mounted bowls designed for flushometer valves, with optimized trapways for commercial performance.
Examples:
Kingston Two-Piece 1.28 gpf Toilet
Kingston Wall-Mounted Flushometer Bowl
Fire sprinklers
• Tyco – Standard Spray Sprinklers (Series TY-B and others): A broad family of standard spray sprinklers in various orientations and K-factors used in light, ordinary, and extra-hazard occupancies, including offices.
Link: Tyco Standard Spray Sprinklers
Designers select sprinklers based on hazard classification, ceiling configuration, and local NFPA 13 requirements. In North Texas office cores, light-hazard standard spray pendents or concealed pendents are typical.
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