Description

• The majority of NYCHA’s buildings are clad in masonry, typically common clay brick. Depending on the age of the development and the particular design the brick masonry exterior walls can be brick with CMU backup, brick cavity wall, or multi-layer (wythe) solid brick construction.  In addition to masonry, many some buildings and structures utilize a variety of durable cladding materials like stone, terra cotta tile (especially at parapet copings and entrances), glazed or split-face concrete masonry units (CMU), and concrete (particularly at the exposed foundation walls and entrance canopies).  Most surround reinforced concrete or steel frame interiors, but there is a wide variety of building details tying the existing brick or cladding to the building structure. Except for some pre-war tenement buildings owned by NYCHA, most buildings have little if any exterior ornament.  These materials require maintenance and repair to maintain the integrity of the thermal envelope and to eliminate moisture transfer to the interior. It is also critical to maintain facades and repair deterioration or structural defects for the safety of residents and general public. 
• Aside from PACT or COMPMOD projects (described below) most NYCHA brickwork and cladding projects involve repair of existing facades.  There has been patchwork maintenance to the brick cladding, but few comprehensive exterior upgrades.  When replacing brickwork and cladding it must first be thoroughly inspected for defects and structural issues by a Qualified Exterior Wall Inspector (QEWI) as specified by NYC Local Law 11 and requirements in NYC Building Code.  With extensive brickwork or cladding upgrades, it is important to use any invasive or other required survey techniques such as physical probes, drones to examine the upper floors, infrared to determine areas of water penetration or heat loss, or radar to verify any bowing that could indicate settling or structural deterioration.  The more information gathered up front on the existing cladding and details the more accurate the scope of work and project schedule.  Additional building exterior repairs may include parapet removal with railing replacement, rooftop elevator machine room and roof stair bulkheads, and water tank enclosures. Most brickwork upgrade projects require scaffolding and sidewalk sheds.  It is important to coordinate the scaffolding, sheds, and any other safety measures with the permitting process and with the development stakeholders. 

Baseline

• Pointing – Masonry walls frequently deteriorate at the mortar joints. When this happens, loose and damaged mortar must be thoroughly removed from the exterior face of the joints and replaced. Improper pointing can compromise the structural integrity of the masonry and undermine the performance of the facade. New mortar must match the original mortar in compressive strength, vapor permeability, color, texture, and tooling to the maximum extent possible.  Bricks or patches of bricks can also experience cracking or spalling due to impact or freeze/thaw cycles.  In those instanced skilled brick replacement or stitching to match the existing would be required.  These guidelines should also be followed when brick infill is required in patches due to removal of through-wall ductwork, conduits, piping, HVAC machinery, etc. 
• When designing a brick repair project the first step is to verify the type of exterior wall with the NYCHA archived drawings.  But it is also important to verify existing conditions in the field, since what was drawn might not match what was constructed, and subsequent repairs or upgrades might not be incorporated into the drawings or recorded in the archives. 
• Masonry repair might also be required due to uneven settling or separation at the building corners, or frequently as part of other upgrades such as window replacement.  If vertical cracks across brick courses or step cracks are present, the design could require installation of new vertical or horizontal expansion or control joints.  These should be located carefully depending on the visibility of the facade.  Very often insufficient drainage over windows will result in rusting of the steel lintels or shelf angles and subsequent damage to the brick coursing.  This will require removal of the brick over the windows to facilitate replacement of the steel angles, and that will require hazmat testing for lead-based paint if the steel is painted or asbestos-containing materials (ACM) if the window caulking tests positive.  In those instances the brick repair project could require abatement and coordination with the residents.  If there is brickwork or cladding damage due to interior issues such as structural deterioration those conditions need to be verified and addressed as part of the project.  It’s important to try and avoid masonry upgrades as a cosmetic cover for underlying issues that will manifest themselves over time and damage the new brickwork.  Brick deterioration can also occur when weepholes were either insufficient in the original construction or have become clogged over time.  This should be verified and corrected as part of the cladding upgrade. 
• Brick Replacement – In addition to matching structural characteristics, new masonry must also match the original in color, texture, and size. Since most masonry facades are cleaned rarely and brick color will naturally weather and darken over time, before initiating the project work create brick and mortar references mock-ups by cleaning an area (see photo).  Multiple brick/mortar mock-ups might be required to find the proper match.  Note that different elevations of the building may weather or deteriorate unevenly due to exposure to sun and precipitation, so brick and mortar replacement may require different shades.  Ensure that replaced brick and mortar match the cleaned patches of the walls. In many developments, subtle design details in the original masonry were constructed with specially shaped or placed masonry units; these features should be replicated as part of the rehabilitation.  It is important to avoid contrast between the repaired areas and original brickwork which detracts from the appearance of the building.  It might be possible to include facade cleaning and mold removal as part of the base contract work. 
• Parapet Walls and Other Roof and Wall Elements. (Note:  masonry should not require frequent upkeep.)  Masonry at the parapet walls carry added importance, as they prevent water infiltration where the roof meets the facade. For more cost-effective and longer-lasting rehabilitation, NYCHA has moved away from repairing or replacing masonry parapet walls where possible and now removes the parapets and installs easy-to-maintain metal rails during roof rehabs (see photo and Office of Design sample detail).  This very often requires replacing several brick courses below the roof line, typically down to the upper row of windows.  NYCHA has worked closely with NYC Department of Buildings to identify appropriate treatments for the removal and reduction of brick rooftop structures, such as long-dormant smoke rooms and a height reduction of what used to be incinerator stacks. These flues now generally serve as trash chutes that connect to garbage compactors.  Many of these projects can require patching to the roofing.  In such cases it is important to verify that no brickwork would violate any current roofing warranty. (Note:  recommend including photos of both good and bad brick stitching for examples.) 
• Frequently there are existing facade elements such as balconies or fire escapes that must be maintained and accessible during the course of brickwork or cladding upgrades, and these need to be incorporated into the project timeline.  There are also surface-mounted utility items such as conduits, piping, electrical risers, antennas, lighting, or ductwork that need to be maintained and could affect access to the affected cladding to be repaired. If any relocation or temporary removal of any utility service is required it needs to be coordinated with the stakeholders and any applicable service provider and necessary repairs due to anchor removal, etc., incorporated into the scope of work. 
• In the case of multiple materials, either in the wall section or elevation, repair all existing building envelope components, including exterior masonry and concrete as needed. In areas of consistent water penetration, investigate the possibility of using a breathable penetrating masonry sealant at any façade with exposed masonry. Tuck pointing at the exterior and air-sealing all façade penetrations can also be used to maintain or improve airtightness, but this is not used as frequently as standard pointing.  Use of tuck pointing should be verified with the NYCHA representative and the stakeholders as it affects the building’s appearance.  All new or existing penetrations must be sufficiently weathertight and in the case of rated walls the existing fire rating must be maintained.    
• Filing:  Depending on the size and scope of work and whether the buildings is located in a designated flood zone, the brickwork or cladding project might require filing with the Department of Buildings.  This should be verified as early as possible, and all necessary sub-contractors or vendors for third-party inspections included in the budget and timeline.  Also verify any historic preservation requirements.  Few NYCHA developments are designated historic landmarks but more are subject to review by the State Historic Preservation Office (SHPO), so this should be determined to verify if this restricts any design possibilities. 
• Design:  It should be noted that not all brickwork or cladding upgrades are limited to repairs or replacing in kind, and design upgrades can be used as well.  In some instances there are existing murals painted on the brickwork that the stakeholders might want to maintain.  There are also opportunities to have a mural painted or exterior artwork installed, or include a section of colored glazed or other decorative brick, CMU, or rain screen, such as at entrances, as an accent that contrasts with the existing masonry.  Brickwork is not typically painted but is allowed in certain circumstances.  Foundations can be painted with a gloss finish paint that absorbs into the CMU or concrete for maintenance and also serves to facilitate graffiti removal.  Wherever possible an opportunity to liven the appearance of the building should be used, with the cooperation of the stakeholders.  
• Sustainability:  Wherever possible brick, CMU, mortar, etc., should be locally sourced and sustainable materials used.  Fine aggregate in mortar, for instance, was typically beach sand in older buildings, but this is a depleted resource so manufactured aggregate should be substituted, as stated matching the color as much as possible.  Where brickwork on an elevation extends down to grade, all materials and details should be designed to withstand flooding due to climate change, especially at developments on the waterfront and/or within designated FEMA flood zones.  This could entail additional reinforcement within the walls or additional exterior coatings, or possibly an applied exterior material at the lower courses.  Recycling should be incorporated into the project as much as possible.  Removed bricks have traditionally been discarded to landfill, but there is a growing move to provide bricks for recycling, and this should be incorporated into the contractor’s waste management plan.  Where possible it is highly desirable to install exterior insulation in a cavity wall. 

Stretch

• Provide full envelope upgrades (all enclosure walls) with interior or continuous exterior insulation. [COMPMOD]
  • When selecting a cladding system, prioritize non-combustible insulation and overall fire resistance, durability, and thermal and moisture performance.
  • Include cut sheets and warranty information for specific products.
  • Teams can propose and price an adhesive applied EIFS (Exterior Insulation and Finish System) product if they choose, but should also propose and price an alternative, prioritizing rain-screen cladding systems with continuous insulation.
  • Options for rain-screen finish panels include but are not limited to fiber cement, composite, and metal panels.
  • If EIFS, or any other face-sealed (adhesive-applied) barrier wall system is specified and priced, describe assumptions for moisture management components, and inspection, maintenance, replacement, and removal protocols in detail.
• Envelope upgrades may not need to ensure thermal performance to code minimum. [COMPMOD]
• Describe moisture management strategy and components. [COMPMOD]
  • Assume a breathable masonry coating at any façade with exposed masonry.
• Interior Insulation – Where feasible and appropriate for adequate mechanical system sizing, thermal comfort, and airtightness, assume full envelope upgrades (all enclosure walls) with interior insulation. [PACT]
  • System options include but are not limited to rigid, blown-in, loose-fill, batt, wall board, or an integrated sheathing system.
  • Installation approaches include but are not limited to loose-fill or blown-in insulation in existing cavities, if assumed; Wall board or sheathing at the interior face of existing interior envelope walls; New, furred out walls at interior with insulation between studs; Existing cavity walls can be removed and rebuilt, or can remain.
  • PACT Partners should consider how their lead removal strategy may impact building envelope improvement scoping.
  • Interior envelope upgrade solutions do not have to assume thermal performance to code minimum. Project teams should identify a strategy for evaluating existing envelope condition, airtightness, and R-value, and identify target performance metrics that will allow adequate mechanical systems sizing and support a selected ventilation strategy.
  • When selecting an insulation product non-combustible insulation should be used, and PACT Partners should prioritize overall fire resistance as well as thermal and moisture performance.
• Exterior Insulation and Cladding (“Over-cladding”) – Where feasible, assume full envelope upgrades (all enclosure walls) with an exterior continuous insulation and cladding system for all buildings not under consideration for historic tax credits or already National Register listed or eligible. [PACT]
  • System options include prefabricated and/or pre-fenestrated panelized systems (Dextall D-Wall or similar), insulated metal panel systems, rainscreen systems with continuous insulation, exterior insulation, and finish systems (“EIFS”). 
  • When selecting a cladding system, non-combustible insulation should be used, and overall fire resistance, durability, and thermal and moisture performance should be prioritized.
  • If an EIFS product is proposed, an alternate system and product, prioritizing rainscreen or prefabricated panelized cladding systems with continuous insulation should also be included.
  • Options for rainscreen finish panels include but are not limited to fiber cement, composite, and metal panels.
  • If EIFS or any other face-sealed (adhesive-applied) system is specified, describe moisture management components, and summarize on-site installation quality control protocols for any product that relies on adhesive lines for back-draining.
  • If EIFS or any other face-sealed (adhesive-applied) system is specified, submit a preliminary lifecycle cost analysis and describe inspection, maintenance, replacement, and removal protocols in detail.
  • Re-point and repair existing brick before installing any over-cladding system to ensure the existing façade is in sound condition.

Strategies

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CompModPACT

Last Updated on October 11, 2024 at 10:38 am

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03 45 00 – Precast Architectural Concrete

04 01 20 – Masonry Repair

04 01 21 – Masonry Cleaning

04 05 13 – Masonry Mortaring

04 05 19 – Masonry Anchorage and Reinforcing

04 05 23 – Masonry Accessories

04 20 00 – Unit Masonry

04 27 23 – Cavity Wall Unit Masonry

04 72 00 – Cast Stone Masonry

05 05 19 – Post-Installed Concrete Anchors

07 62 00-1 – Flashing: Sheet Metal and Flexible

07 62 00-2 – Flashing: Sheet Metal and Flexible

07 92 00-1 – Joint Sealants

07 92 00-2 – Joint Sealants

08 91 19.10 – Stationary Metal Wall Louvers

Diagrams

Details

A-EL_Bulkhead Elevations & Details

A-EL_Construction Bulkhead Elevation w No Rail

A-EL_Construction Bulkhead Elevation w Rail

H-EL_Asbestos Abatement Bulkhead Elevations

H-DT_Asbestos Abatement Plan Legend & Notes

S-DT_Brick Repointing

S-DT_S-005.00_Brick Replacement Cavity

S-DT_S-005.00_Brick Replacement Solid

Description

• Building entrance and exit upgrades are a critical element for maintaining resident safety in limiting access to residents who have a key or fob and maintaining safe and secure egress for fire or emergencies. Upgrades to older entrances have introduced new standards for steel-reinforced aluminum doors with larger glass area for improved visibility and to promote a sense of well-being with bright open and modern lobby spaces. 
• Working with residents and resident leaders is critical so entrances follow baseline guidance but also reflect the varied character of individual developments with different finishes, colors, materials providing a unique look and feel. Areas for artwork, terrazzo or tile flooring motifs and patterns, signage, and varied paint colors are all areas for resident input. 

Baseline

General Exterior Doors 

• In all multiple dwelling buildings, building entrance doors, and bulkhead doors are required to be self-closing. Local Law 62 of 2022 defines a self-closing door as a door equipped with a device that will ensure the door when opened and released, returns to the closed position and self-latches shut. 
• All self-closing doors should comply with the NYS Housing Maintenance code section 27-2041.1. As well as ADA standards and guidelines.
• Door closers shall be adjusted so that from an open position of 90 degrees, the time required to move the door to an open position of 12 degrees shall be 5 seconds minimum. (Door closers at building entrances are LCN type, while door closers at apartment entrance doors are self-closing by spring hinges)  

Entrances 

• Replace existing storefront entry doors with new ADA-accessible code-compliant entry doors, related hardware, and LAC (Layered Access Controls). 
• Entrances to be steel reinforced thermally broken aluminum storefronts. 
• Doors to be 38” to 42” in width. 
• Provide door stops, where possible, to prevent damage to door closer due to heavy winds. 
• Exterior glazing and door to have a 10-minute attack resistance rating. 
• Storefront finishes should take into consideration the location of the developments in regard to proximity to ocean (salt water) effects. 
• Integrate the intercom panel as part of the storefront design. 
• Ensure adequate lighting levels at exterior of the entrance and vestibule. 
• Raised curbs, where possible, will allow for easier cleaning by NYCHA staff.  
• Selected finishes, approved by tenants, should be easily cleaned. 
• Finishes should allow for clear visibility through the vestibule/ lobby.  
• Panic bars should be provided as exiting door hardware.  
• Provide new building signage where possible. This will add to the new modern/refreshed entrance look. 

Intercom 

• All entrance doors must have a multi-unit apartment intercom system which has seven basic components. 
• Base stations at building entrances. 
• Sub-stations in the individual units (or an app in the case of an apartment video door phone intercom system). 
• Directories of individual tenants. 
• Connectivity to link base stations to individual sub-stations. 
• Electronic door locks. 
• Power supply for base stations and door locks. 
• Infrastructure for system management. 
• Consider installation of intercoms with video cameras. 

Stretch

• Entrances
  • Create or reintroduce vestibules.
  • Refresh existing finishes in vestibules and lobbies.
  • Refresh wayfinding signage.

Strategies

Center Community Knowledge, Experience & Connection

Promote Safety and Security of Residents & Staff

Optimize Performance, Operation & Maintenance of Buildings, Systems & Assets

Last Updated on October 17, 2024 at 1:15 pm

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08 11 00 Steel Doors and Frames

08 71 30 Thresholds, Weatherstripping and Seals

09 96 23 - Graffiti-Resistant Coatings

10 72 00 - Window Guards

Details

A-DT_Bulkhead Door Details

NYCHA Entrance Enhancements Guide - 1999

Description

• Many older buildings across NYCHA contain steel and iron fire escapes. Care should be taken to closely examine and study these existing fire escapes for structural defects and issues. Fire-escapes are prone to rust and wear particularly in their connections to masonry structures and façades. Fire escape work will generally consist of scraping and repainting along with any necessary structural repairs to individual elements. In some cases when the fire escape shows sign of extensive degradation the scope of work will encompass replacement of the entire fire escape.

Baseline

• Many older buildings across NYCHA contain steel and iron fire escapes, due to fire egress codes. Care should be taken to closely examine and study these existing fire escapes for structural defects and issues, as they are an essential life-safety issue. Fire-escapes are prone to rust and wear, particularly in their connections to masonry structures and façades.  
• Fire escape work will generally consist of scraping and repainting along with any necessary structural repairs to individual elements. In some cases, when the fire escape shows sign of extensive degradation, the scope of work will encompass replacement of the entire fire escape. 
• Baseline 
• Fire-escapes shall comply with the national, state, and local laws governing such structures:  
  • 1 RCNY §15-10 
  • Fire Escape Restoration and Replacement National Standard 
  • Rules of the New York City, Landmarks Preservation Commission, Title 63, Rules of the City of New York, §2-22 FIRE ESCAPES. Effective August 21, 2023. 
• All fire escapes should be tested for lead paint before commencing any refinishing or repainting.  If lead paint is found below the threshold of 0.5 ppm, then the paint should follow all NYC abatement guidelines for lead safe removal. 
• A certified professional should conduct a visual walk-through examination of all connections in the fire escape system. This includes checking for rust, wear and tear, and other signs of damage that may impact the structural integrity of the fire escape. Beyond structural issues, the inspection should include the quality of the paint and whether it has been properly maintained. Once the inspection is complete, a Pass/Fail Certificate should be submitted to the authority having jurisdiction (AHJ). 

Stretch

There is no stretch requirement for fire escapes for NYCHA buildings.

Strategies

Promote Safety and Security of Residents & Staff

Optimize Performance, Operation & Maintenance of Buildings, Systems & Assets

Last Updated on October 11, 2024 at 10:43 am

Description

• Projects in this scope area may include repairing or replacing foundations; and installing new foundation walls including masonry block walls, mortar, waterproofing, drainage, and vents for exhaust and/or floodproofing. The full, detailed scope of work for this project including any additional work areas will be updated here after alignment with project stakeholders through scoping and design activities.

Stretch

• Minimize concrete, fill, and soil construction and demolition waste (C&D) from capital projects. See Construction Waste section under Waste Management. [SA]
• Provide structural reinforcement for the slab, foundations, and basement or cellar below the Design Flood Elevation (DFE). Review Flood Protection section in Flood Protection for alternatives. [FR]
• Dewatering
  • Approval is required to discharge an amount exceeding 10,000 gallons per day of ground water into the public sewers.

Strategies

Optimize Performance, Operation & Maintenance of Buildings, Systems & Assets

Sustainability AgendaFlood Resilience

Last Updated on August 14, 2024 at 2:47 pm

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03 20 00 - Concrete Reinforcing

03 24 00 - Synthetic Fiber Reinforcement

03 30 00 - Cast-in-Place Concrete

03 30 54 - Fiber Reinforced Cast-in-Place Concrete

03 60 00 - Grouting

31 22 00 - Earth Moving, Excavation, Filing and Grading

31 30 00 - Earthwork

31 50 00 - Excavation

Typ Unit Price Assemblies

Details

G-DT_Proposed Structural CAD Layer Standards

Description

• The focus on the design, construction, and improvement of loading docks is to ensure efficient and safe handling of goods and materials. Should meet OSHA requirements.
• Loading dock projects typically comprise the construction or upgrade of loading dock platforms, ramps, and dock levelers to facilitate smooth loading and unloading operations. Safety features such as guard rails, bumpers, and proper lighting should be considered to enhance security and prevent accidents. Additionally, the installation of weather protection elements like canopies and seals around dock doors should be included to protect goods and workers from adverse weather conditions. Loading docks projects may also involve improving the access roads and pathways leading to the loading docks to ensure ease of transport. Loading dock work may require communication with the Department of Transportation or the Department of Sanitation to address road re-design. 

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Promote Safety and Security of Residents & Staff

Optimize Performance, Operation & Maintenance of Buildings, Systems & Assets

Last Updated on October 22, 2024 at 1:50 pm

Description

• The majority of NYCHA buildings have low-slope roofs, many of which were originally designed as “no-slope” coal-tar roofs. The original roofing system had few roof drains and often allowed standing water to accumulate.

Baseline

• Architectural & Engineering Services recommends one roofing system for rehabilitation of existing low-slope roofs. Designers should choose from these listed systems based on site conditions and budget. Before selecting a roofing system, analyze existing conditions, including number of roof drains, configuration of bulkhead doors, building edge condition, energy code requirements, and construction schedule. Assume thermal performance to code minimum (R-33/35). All new roofs (other than green roofs) to receive code-required, high-reflectance coating.
  • Cold fluid applied reinforced roofing system: With tapered insulation.
  • Three-ply built-up roof with SBS cap sheet: Low-slope with tapered insulation.
• Comply with CPD Design Standard Notice 2016001. [COMPMOD]
• Comply with CPD Design Standard Notice 2016005. [COMPMOD]
• Comply with NYCHA Standard Roof Specifications. [COMPMOD]
• All existing roofing materials, flashings, miscellaneous sealant materials and painted surfaces to be demolished must be tested for Asbestos and Lead, and abated prior to removal.  
• After removal of the existing roofing, roof fans may need to be raised on new curbs to accommodate the higher roof surface.  New roof drains, or repairs to roof drains, may be required. Roof bulkhead door sills may need to be raised, or drainage enhancers employed to minimize sill conflicts.  
• Dunnage for mechanical systems will require re-flashing and specific requirements for roof penetrations.
• Vendor equipment, such as rooftop antennas, may require temporary relocation and reinstallation, shall be anchored adequately to the supporting structure, and be flashed. 

Stretch

• Where feasible and indicated by energy analysis, provide building roofs with additional insulation to provide higher than code-minimum thermal performance (up to R-50).
• Vacuum Insulated Panels – Where the substantially greater thickness of new rigid insulation is problematic, the alternative of Vacuum Insulated Panels may be appropriate. This technology provides greater insulation values in considerably less thickness, but since panels cannot be cut, may not be suitable on small or irregular areas. 

Strategies

Optimize Performance, Operation & Maintenance of Buildings, Systems & Assets

Prioritize Sustainable Materials, Technologies & Practices

Innovate Adaptive & Resilient Solutions

CompModPACTSustainability AgendaEntryways

Last Updated on October 9, 2024 at 2:04 pm

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Specifications

05 52 13 – Pipe and Tube Railings

07 14 00 – IRMA Roofing Systems

07 14 00.01 – IRMA Roofing Systems

07 14 00.02 – Cold Fluid Applied Reinforced Roofing - Two Component System

07 14 00.03 – Cold Fluid Applied Reinforced Roofing - One Component System

07 51 00 – Built-Up Bituminous Roofing

07 52 00 – Temporary Torch Applied Asphalt Roofing

07 57 13 – Spray Polyurethane Foam Roofing

07 71 00 – Roof Specialties

07 62 00 – Flexible Sheet Metal Flashing

07 62 00.01 – Sheet Metal Flashing and Trim

23 37 23 - Roof Accessories

CPDDESIGN2015001 - Roof Railings_151023

CPDDESIGN2016001 - Roof Parapets_Replacement_w _Railings_16-01-01

nycha-roof-replacement-and-rooftop-structure-renovation-02312019

Diagrams

Details

A-DT_A105_Roofflash

A-DT_A106_Roofprtc

A-DT_A110_Railingdet

A-DT_Flashing Detail @ Roof Fan

A-DT_Flashing Detail @ Stack Vent

A-DT_New Railing Roof Detail

A-DT_Railing Details 2021

A-DT_Typ General Roofing Assembly

A-DT_Water Stop Detail

S-DT_RAILING_DETAILS

S-DT_S-001_RailingDet

S-DT_S-001_RailingDet-Layout1

S-DT_S-002_RailingDet_RC

S-DT_S-003_RoofPrtc_RC

S-DT_S012-compactor stack

Description

• Scaffolding, also known as staging, is a temporary platform or support structure used by construction crews while working at heights. It aids in the construction, maintenance, and repair of buildings, statues, and other structures. Scaffolders are responsible for erecting and disassembling these scaffoldings to support both crew members and materials during construction activities.

Strategies

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Last Updated on May 15, 2024 at 10:05 am

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01 54 23 – Scaffolding, Hoisting and Lifting

G-DT_Pipe Scaffold Design

Description

• Temporary protections like sidewalk sheds are crucial during the exterior renovation of buildings as they serve to safeguard pedestrians and residents from potential hazards such as falling debris or construction materials. Projects in this scope area may include:
  • Installing new sidewalk sheds and netting; inspection of sheds for safety and compliance; posting of all relevant documents on sheds; and installing fencing in areas to restrict pedestrian access away from sidewalks.

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Last Updated on May 15, 2024 at 3:36 pm

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01 53 16 – Sidewalk Sheds

02 90 00 – Sidewalk Shed

CPDDESIGN2016003 - Sidewalk Sheds_151026

Details

G-DT_G-006.00_SWS Detail 1

G-DT_ G-007.00_SWS Detail 2

G-DT_ G-008.00_SWS Detail_3

G-DT_Sidewalk Shed + Chainlink Fence Details 2 [G-007.00]

G-DT_Sidewalk Shed Details 1 [G-006.00]

G-DT_Sidewalk Shed Details 3 [G-008.00]

G-DT_Sidewalk Shed Details All

G-DT_Sidewalk Shed Notes [G-005.00]

G-DT_ SWS_Details_NYCHA Std Details

G-DT_SWS Notes for Drawings

Description

• High-quality, energy-efficient windows can play a significant part of a well-designed building envelope by reducing energy costs and improving indoor comfort by minimizing drafts and temperature fluctuations. AES recommends low-E glass with a low Solar Heat Gain Coefficient ir SHGC on south and southwest facing windows. Heat gain and heat loss through windows are responsible for 25%–30% of residential heating and cooling energy use (DOE). Windows insulative qualities are rated by U-Value, which is the inverse of R-value and the U-Value is determined by the New York city Energy conservation Code.  Selection should include the highest ENERGY STAR and National Fenestration Council (NFRC) ratings that is within the budget; while also ensuring they are durable, easy to maintain and have handles and locks that are easily reachable and operable by all residents, including those with mobility challenges.  Hardware should not have sharp edges and screws should be tamper-proof.  
• Window replacement may also require repair of lintels and surrounding brickwork and scaffolding / sidewalk sheds, see Building Exterior, Masonry section and Scaffolding section. 
• Window replacement may involve environmental abatement. 

Baseline

• The Architectural & Engineering Services office (AES) recommends sliding and casement windows in living rooms/bedrooms, casement windows in kitchens/bathrooms, and double-hung windows in bathrooms where the window is located at the shower or tub. 
• In some instances a combination of a fixed and operable sash is acceptable. 
• The color of windows, doors, and louvers located on lower floors must match the color of the existing lower-floor windows, doors, and louvers. 
• Integral sash stops are required for the safety of children. Window operating forces, heights, and other accessibility factors must comply with Federal, State, and City codes. 
• Energy Efficiency – NYCHA uses thermally broken aluminum frames. AES recommends baked enamel over an anodized aluminum finish. However, some manufacturers have obtained prior DOB approval for alternate materials, and this is permissible. 
• Glazing must meet NYC Energy Conservation Code (NYCECC) and the Enterprise Green Community (EGC) NYC Overlay. Low-emissivity (Low-e) coatings or films must be used to improve solar and thermal performance without compromising the amount of visible light transmitted. 
• NYCHA buildings fall under Commercial Buildings as per the NYECC and must follow those requirements for U-value. 
• The installation detail must be air-sealed as per NYCECC. 
• Many NYCHA windows fall under the requirements of Commercial buildings 
• Window-mounted Air-Conditioners – NYCHA receives numerous citations for improper window AC installations, which causes tremendous financial waste and organizational inefficiency. Details should consider a thermally broken window AC partition that makes installation and removal easy and code compliant. For buildings with through-wall AC sleeves, rehabilitation should ensure the sleeves are air-sealed. 
• Air-Conditioners – Installation should be coordinated with Mechanical discipline.

Stretch

• Propose and price an exterior or window-integrated shading strategy. [COMPMOD]
  • Options include but are not limited to fins, louvers, brise soleil, external frame sunshades, shutters, screens, or other façade treatment, or between-the-glass shades.

Strategies

Promote Safety and Security of Residents & Staff

Optimize Performance, Operation & Maintenance of Buildings, Systems & Assets

Innovate Adaptive & Resilient Solutions

CompModPACT

Last Updated on October 22, 2024 at 2:06 pm

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08 51 23 – Steel Windows

07 62 00-1 – Flashing: Sheet Metal and Flexible

07 62 00-2 – Flashing: Sheet Metal and Flexible

10 72 00 – Window Guards

Diagrams