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Appendix 4

HOUSING INSPECTION SERVICES DIVISION

REHABILITATION/RECONSTRUCTION

STANDARDS & SPECIFICATIONS

CITY OF DALLAS – HOUSING DEPARTMENT

CONTRACTOR GUIDELINES & SPECIFICATIONS

FOR THE HOME REHABILITATION PROGRAM

TABLE OF CONTENTS

SECTION 1 - GENERAL REQUIREMENTS

SECTION 2 - SITE WORK

SECTION 3 - CONCRETE

SECTION 4 - MASONRY

SECTION 5 - METALS

SECTION 6 - WOOD AND PLASTICS

SECTION 7 - THERMAL & MOISTURE PROTECTION

SECTION 8 - DOORS AND WINDOWS

SECTION 9 - FINISHES

SECTION 10 - SPECIALTIES

SECTION 11 - EQUIPMENT

SECTION 12 - RESERVED

SECTION 13 - RESERVED

SECTION 14 - RESERVED

SECTION 15 - MECHANICAL/ PLUMBING

SECTION 16 - ELECTRICAL

SECTION 17 - HANDICAP / ADA REQUIREMENTS

SECTION 18 - LEAD BASED PAINT GENERAL CONDITIONS & SPECIFICATIONS

SECTION 19 REPLACEMENT/NEW CONSTRUCTION SPECIFICATIONS

APPENDIX I – DRAWINGS / APPLICATION / ENERGY STAR

**Specifications for reconstruction appear after Appendix I.

SECTION 1 – GENERAL REQUIREMENTS

This Housing Inspection Services Division Rehabilitation/Reconstruction Standards & Specifications (the “Standards & Specifications” or “RS&S”), Exhibit C, is deemed to be part of the HIPP Triparty Agreement (the “Agreement”) and is subject to its terms and conditions thereof. In this Exhibit C, the contractor shall be referred to as “Contractor”, “contractor”, “General Contractor” and/or “general contractor”. The general requirements detailed in this Section 1 is applicable to both rehabilitation and reconstruction.

This document provides for standards for rehabilitation and reconstruction for single-family owner-occupied housing units.

Eligible rehabilitation and reconstruction activities will include all items necessary to bring the structure into compliance with the City of Dallas (hereinafter “City”) written rehabilitation standards and applicable local residential codes; including items recommended as necessary to

Connect – Collaborate – Communicate preserve the property’s structural integrity, historic integrity, weatherization, and quality of living conditions. The scope of work must address all majorsystemsthat have a remaining useful life for a minimum of 5 years at project completion, or the system must be rehabilitated or replaced as part of the scope of work. Major systems are identified as structural support (foundations); roofing; cladding and weatherproofing (e.g., windows, doors, siding, gutters);

plumbing; electrical; and heating, ventilation, and air conditioning. Improvements to, or demolition of an accessory structure such as detached garage, or small residential structure will be made on a case by case basis depending on the available budget, grant requirements, current building codes, health and safety concerns, and minimum occupancy requirements of residents of the property and in conjunction with the rehabilitation of the housing rehabilitation of the owner-occupied home.

This document is established to provide information to contractors and homeowner on the HIPP and on the standard for the performance of work under each type of assistance. The RS&S shall be followed by contractors submitting bids on work to be financed wholly or in part by City or federal funds in any City-administered HIPP. Conflicts in interpretation of construction work to be performed will be governed by the RS&S and the Agreement. If there is any conflict between the Agreement and this RS&S, the City shall decide which controls, in its sole discretion. This does not preclude the right of the City to request changes to these RS&S upon approval by the Director of Housing and Neighborhood Revitalization or designee (the “Director”). Contractor and homeowner shall cooperate in good faith to reach mutual agreement on reasonable modifications to the RS&S. Such modification shall be in the form of an amendment to the Agreement. The Specifications of Work (“SOW”), the contractors bid, and all loan closing documents constitute the basis of the Agreement for work to be performed.

Waiver of any term or provision of this RS&S or forbearance to enforce any term or provision by City shall not constitute a waiver as to any subsequent breach of the same term or provision or a waiver of any other term or provision of this RS&S. Interpretation of these policies and processes rests solely with the Director.

CONTRACTOR QUALIFICATIONS

The Housing Department for the City of Dallas (the “Housing Department”) sets forth requirements and standards with respect to approving contractors to be placed on a list of firms certified to bid on HIPP projects. Because the City seeks the highest quality work and performance from its contractors, all contractors on the HIPP approved contractors list will be required to submit financials with their bids. The Office of Risk Management (hereinafter “ORM”) shall set the level of risk and insurance requirements. This will allow the City to monitor all contractors to ensure that they continue to maintain expected quality of work and performance. If no changes have occurred, the contractor shall submit a No Change Affidavit, provided by the Housing Department.

Reduced, Limited or Suspended Status: Existing Contractor An existing contractor’s eligibility status will be reviewed and the contractor may be recommended for reduced, limited or suspended status when the quality of work is lacking and needs to be reassessed (for failure to follow the RS&S or the Agreement), when the City determines that contractor’s financial capacity needs to be reassessed, or failure of the contractor to complete a project(s) by the specified time. A contractor recommended for reduced status shall be limited to the number of projects recommended by their risk level. If a trend of good performance is established by the end of the suspension period, the risk level shall be reviewed for full certification to the level of financial and project performance capacity is reached. If good performance is not established within the allotted time, the contractor’s certification shall be

Connect – Collaborate – Communicate reviewed for further action leading up to suspension and debarment.

A Contractor may be eligible to bid on HIPP projects or be listed as an approved reconstruction General Contractor if all applicable criteria are met. Some of the applicable criteria are listed below. This list is not an all-inclusive:

• Approved as eligible Contractor for the current fiscal year

• No listing of debarment or suspension by the City or the U.S. Department of Housing and Urban Development

• Current City Home Repair License.

• Registered as a Contractor with the City of Dallas

• Registered to transact business in the state of Texas with the Texas Secretary of State

• Trade Contractors’: Licensed Plumbing, Electrical & HVAC Contractors: Current copy of State license

• EPA Renovators and Firm Certification

• Current insurance as specified in the contractor application

• Consistent evidence of compliance with local, state and/or federal requirements and/or guidelines pertaining to HIPP

• Consistent evidence of compliance with required warranty requirements

• Consistent evidence of compliance to begin and end construction per contractual agreement

• Number of projects, private and public do not exceed establish risk level.

• Financials are available to cover additional work to be determined by ORM

PRE-CONSTRUCTION

The contractor will be expected to present samples of materials that could be selected by the homeowner (e.g. interior & exterior paint, roofing material, counter tops, vinyl and carpet). The homeowner’s choice of colors will be placed on a selection form, signed by all parties and shall be included in the SOW. At the pre-construction conference, the SOW or the reconstruction documents will be reviewed and a tentative schedule of work will be provided to the homeowner.

The sequence of work will be discussed along with special conditions and expectations.

CONSTRUCTION

Only materials conforming to the requirements of the RS&S shall be used in any work covered by the RS&S. Manufacturer names or an equal will be specified to establish a guide as to the quality and type of materials required for the job. Materials commonly accepted as being ‘equal to’ may be used if approval is obtained prior to installation from the Housing Department inspector (the “Housing Inspector”) and may require a material change order. Whenever it appears the materials furnished, and work performed by the contractor fails to fulfill the minimum requirements of the Agreement, the Housing Inspector shall notify the contractor of the non-approved materials. Such inspection will not relieve the contractor from his/her obligation to perform required work in accordance with the RS&S and SOW.

The contractors will ensure that materials on the job site is properly stored to ensure preservation of quality and fitness for installation. Lawns or the structure will not be used for storage purposes without the written consent of the homeowner. The storage of materials and equipment will be permitted only for the duration of the contract and are to be removed immediately upon completion of the project. Further, any damages to the homeowner’s property like: lawns, driveways, fences, awnings, or structures resulting from storage of materials, or the delivery of equipment will be repaired by the contractor. The contractor will not use any property belonging of the homeowner such as but not limited to the use of the bathroom, kitchen, equipment, supplies, or tools.

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All stored materials and equipment on site will be grouped together and staked in an orderly fashion as not to pose a hazard to people or animals on site. When adjacent property is affected by work conducted by the contractor or his employees, the contractor will take steps necessary to notify the owner of the adjacent property and if damage occurs, be responsible to replace, restore or repair the damaged item to the original condition.

Performance of Work Repairs to areas impacted by HIPP repair or replacement will be specified in the SOW. All work will be conducted so as to minimize inconvenience to the homeowner. The contractor will be expected to carry out the work activities in accordance with the schedule provided at the preconstruction conference.

Contractors will keep the premises and the surrounding areas clean and orderly during the course of the project. Reconstruction contractors will provide a portable toilet during construction.

Hazardous areas will be marked by tape and barricaded as required by the City’s building inspection code. All debris will be removed on a continuous basis and shall not be allowed to accumulate. Contractors will clean the work site on a daily basis without exception.

Materials, fixtures or equipment that are to be removed as a course of the repair or replacement of the repair work will belong to the contractor for disposal. Any materials, fixtures, or equipment requested by the homeowner will have to be removed prior to the start of construction. Materials, fixtures or equipment removed by the homeowner must be stored in compliance with the Dallas City Code and all applicable laws. Materials, fixtures or equipment requested by the homeowner that is left in place at the start of construction will belong to the contractor for disposal. The homeowner may not install, work, provide, or otherwise assist in anyway in the construction of the project. Any materials, fixtures or equipment that were removed by the homeowner prior to the start of construction and then reinstalled after the completion and final of the project will violate the contract and void any warranty associated with the SOW for the life of the materials, fixtures or equipment.

Contractors will supervise their work crews and or sub-contractors and direct all work to be performed to completion. The contractor will be solely responsible for control over the construction means, methods, techniques, and sequences for coordinating all portions of work under the contract. The contractor will be responsible to have a designated person onsite who has knowledge of the work as stated on the SOW and is capable of communicating with the inspector and the homeowner.

Subcontractors will be bound by the terms and conditions ofthe Agreement and itsspecifications insofar as it applies to their work, but this does not relieve the contractor from full responsibility to the homeowner for the proper and timely completion of work under the Agreement. The contractor will provide the homeowner and the City with a copy of current subcontractors at every closing and request for final payment. It is the contractor’s responsibility to ensure that the subcontractors are not on the Excluded Parties List, as defined in the HUD regulations, or suspended under HIPP. The contractor is responsible to ensure that all subcontractors’ licenses are current, valid and registered with the City per local ordinances.

Contractors / subcontractors will not use the homeowner’s bathroom, phone, or kitchen facilities. If necessary or required, a contractor may provide an on-site trailer / office not to exceed a standard size of 8’ x 20’ if City ordinances allow.

The contractor will provide at least one (1) 5A10BC portable fire extinguisher for the job site for protection against small fires or sparks caused during the daily activities of the work in progress.

General contractors must meet all City of Dallas Building Inspection requirements regarding the

Connect – Collaborate – Communicate fencing and environment protection of the site.

Interim Inspections The Housing Inspector and the Building Inspector will make periodic visits to the job site. All work will be subject to inspection by the Housing Inspector and/or management. Contractors will fully cooperate during site visits and the contractor shall make accessible all work readily for inspection. Reconstruction contractors shall provide to the inspector any key access, access codes to locks, alarms or any other devices to allow ease of inspections.

Plumbing, electrical or work concealed in wall cavities, work not easily accessible, or work identified at the pre-construction conference will be considered “Called” inspection. The Called inspection will require an inspection prior to the work being covered up, concealed or difficult to verify. Contractors are responsible for calling the Housing Inspector in advance to notify them of any work that will be covered up, concealed or difficult to verify. Photos will not substitute for a Called inspection. The contractor must call the Housing Inspector before 7:45 a.m. if the contractor requests a “same day” inspection. The contractor will indicate the type of inspection and the approximate time of the inspection. Housing Inspectors are available to conduct Saturday Called inspections but must be notified of such request by 7:45 a.m. on the Friday before to the date of inspection. If contractor fails to call for an inspection before such items have been covered up, concealed or difficult to verify, the contractor shall be required to uncover, remove to make accessible for inspection. The contractor, at their own expense, shall reset any materials/assemblies removed to allow inspection to finished conditions.

The contractor will ensure that the worksite will be clean and clear of all debris and waste materials resulting from the work at all times.

Final Inspections At the completion of the construction contract, the contractor will request a final inspection of the project. The final inspection will be attended by the Housing Inspector, the contractor, and the homeowner. During the final inspection, the Housing Inspector will review with the contractor the Agreement, including but not limited to the SOW and the RS&S, and any change orders for compliance.

The inspector will conduct a final inspection and create a punch list of items that are not in compliance and note any suggestions for repair from the homeowner if merited for repair on the punch list. The Housing Inspector will provide a final punch list to the contractor outlining any remaining work to be completed or redone on the same day via an email or a hand delivered paper copy. The contractor is required to complete all items on the punch list prior to calling for a second inspection. A completed punch list shall be provided to the contractor either by an email or a hand delivered copy. The contractor shall respond via email or sign the hand delivered copy stating acknowledgement of the punch list.

Punch list items not identified prior to acceptance and completion of the work will be addressed as “Warranty” items, unless determined by the Housing Director or designee not to fall under a warranty. If the item does not fall under the warranty, contractor will be required to fix the punch list item prior to final payment. If final payment has been provided to contractor, contractor is still required fix the punch list item within a reasonable time, if the work was not performed in accordance with the Agreement, as determined in the sole discretion of the City.

Draws and Final Payment HIPP rehabilitation projects will allow up to two (2) draws in $20,000 increments. If the project is less than $20,000, one (1) draw will be allowed. (Example: HIPP project at $35,000 value would have first draw of $20,000 and second draw of $15,000).

A completed punch list signed by the homeowner is required prior to submitting the final

Connect – Collaborate – Communicate payment request. The homeowner will sign the payment request at the completion of the punch list. Payment requests submitted prior to the completion of the punch list will not be accepted.

All required documents must be in compliance with the Loan Documents, including but not limited to the SOW, the RS&S, permits, and manufacture warranty and extended warranties.

Incomplete submission of required documents will be returned to the contractor for remediation and compliance.

All requests for payment must have the contractor’s company name, mailing address, an itemized list of work on the invoice for which payment is requested and a total. The homeowner, contractor, and Housing Inspector will sign the payment request form. Should the homeowner refuse to sign the payment request, the Housing Inspector will meet with Director or designee to review the project and the value of the work determined to be eligible for payment. The Director or designee may request to conduct a site visit to approve or deny payment to the contractor. If the payment request is in compliance of all the contractual agreements, the housing inspections manager will forward payment request to the Housing Department to proceed with the payment process. The payment shall be sent to the Housing Director for review and approval.

If the City determines that the work conforms to the requirements of the Agreement, the City will pay contractor for the work. Homeowner understands and agrees that homeowner’s acceptance of the work is not required for reimbursement.

Reconstruction contractors must verify the owner has provided the Housing Department with proof of insurance before giving the owner keys to the property.

Documents to Be Provided at Time of the draws and or Final Payment Request (if applicable)

• Request for Payment form with attached invoice

• Schedule of Values (Reconstruction only)

• Affidavit of Completion

• Updated list of subcontractors that require reimbursement of services

• Original Notarized Waivers of Lien from the contractor and each subcontractor

• Letter of Warranty from contractor listing contact, mailing address, and phone number

• Warranty Documents

• Green Tags

• Builders Risk (Reconstruction only) Upon approval of the final inspection, the contractor’s payment or draw request are forwarded to the Department to prepare payment. Contractors are encouraged to sign up with the City’s Controller’s office to receive electronic payments.

WARRANTY

All contractors and subcontractors shall be required to warranty and guarantee that the work performed under the contract will be free from defects in both materials and workmanship for a period of 12 months and provide a 10-year foundation warranty for reconstruction projects starting from the date following Project Completion, as defined in the Agreement.

The contractor will provide the homeowner any and all applicable operational and maintenance data booklets or sheets for materials or equipment installed on the job that requires any type of scheduled or regular maintenance within the contractors 12-month warranty. The contractor shall provide the Housing Inspector a list of warranty documents given to the contractor on company letter head. The letter shall state that the contractor has provided the documents listed and has instructed the homeowner in the use and maintenance of the equipment. The homeowner will sign receipt for the warranty documents and all extended manufacture warranties for the furnaces, air conditioners, water heaters, and any fans, and appliances, etc. Failure of the contractor to provide such warranties as described herein (and in the Agreement), is a default

Connect – Collaborate – Communicate under the Agreement.

Before final payment is approved, the contractor will provide to the Housing Inspector a copy of the warranty paperwork for all products installed with a Manufacturer Extended Warranty with model and serial number written in the appropriate places if applicable. Examples include but are not limited to the following:

• A/C and Heating Equipment

• Water Heater

• Roof

• Any other item with Manufacturer Extended Warranties The contractors will respond to the homeowner within five (5) business days and correct warranty concern(s) with-in seven (7) business days, the Director may extend the time to correct warranty concerns, in his/her sole discretion. Health and/or safety issues will be responded to and corrected by contractor within 72 hours of notification.

Warranty Compliance Homeowners contacting the Department within the defined warranty periods will be directed to contact the contractor and asked to call back if no response is received within 5 business days.

If the contractor does not respond to the homeowner within 5 business days to schedule an appointment, the Housing Inspector will send an email to the contractor and copy the housing inspections manager or designee. Non-responsive contractors will be notified by mail that until warranty issues are addressed, action may be taken to change their eligibility status. Failure of the contractor to respond and/or to provide repairs within a reasonable amount of time, as determined by the Director, is a default under the Agreement

QUALITY ASSURANCE PROCESS

Designated Housing Department staff will conduct periodic post-construction site visits on a designated percentage of HIPP projects to assess the quality and sustainability of repairs. All HIPP projects may be subject to an eleventh-month inspection conducted by a Housing Inspector prior to the end of the required warranty period. The contractor will be responsible to honor the 12-month warranty period and make any necessary repairs required within a reasonable amount of time.

EXCEEDING DI MINIMIS ON PAINTED SURFACE PROCEDURES

The contractor shall follow the federal Lead-Based Paint regulations established by Department of Housing and Urban Development (HUD). The contractor shall adhere to the most current regulations for all residential properties built before 1978. The contractor will receive a copy of the procedures established by the HIPP. These procedures will be followed by the responsible Contractor should a painted surface be disturbed in excess of the Di Minimis as established by HUD. The contractor is to presume all residential properties contain lead-based paint unless paint testing and or a risk assessment has been conducted by a qualified entity.

SECTION 2 – SITE WORK:

02100- CLEARING:

02101- PROJECT PREPARATIONS:

A) The contractor will survey the work site to verify all existing grades, conditions and location of all utilities and soil conditions. the contractor will provide all necessary barricades, lights, signals, flagging, and other devices as required for safety on the job site.

B) The homeowner will remove the following code violations prior to commencing of the work, if existent on site, including; all Junk Motor Vehicles, high weeds, illegal storage, unrestrained animals, and obvious hazards or any other structure on the lot

Connect – Collaborate – Communicate outlined by the housing inspector, prior to and as a condition of HIPP assistance. No construction will begin on site as long as these conditions are not met.

02102- SITE CLEARING:

All structures and improvements must be demolished, and debris removed from the jobsite. Remove all rubble, boulders, and large debris within the construction limits.

Remove any shrubs, trees and stumps as needed (before removing any protected trees, contact Buildings Inspections and speak to an arborist). When necessary, all stumps & roots larger than 4” in diameter will be removed completely to a depth of at least 2 feet.

Remove sod, weeds, or ground cover as needed where new structure will be placed. Do not burn or bury any debris on site; all debris is to be removed and disposed of properly in a landfill and dump receipts must be provided if required.

02103- TREE PRUNING & SHAPING:

Contractor will provide services to prune and trim all trees that are either marked by the Housing Inspector, or that overhang or rub against the structure. This also includes all dead or rotten limbs that pose possible danger to people or damage to the structure.

Remove all cut limbs and debris off site and rake area clean. It may be required that the homeowner shape or trim existing shrubs against the structure. If specified in the SOW, shrubs will be trimmed back in a professional manner as to look neat and not provide a security risk around any entries or windows.

02104- TREE & STUMP REMOVAL:

In cases where entire tree needs to be removed, Contractor will safely cut down the tree limbs then the tree trunk so as not to cause any further or new damage to the adjacent structure or roof (before removing any protected trees, contract Buildings Inspections and speak to an arborist).

A) Stumps will be removed to a depth of 1 ½” below grade in areas where structures will not be placed or constructed.

B) All stumps will be removed completely to a depth of 2’ in areas over which new structure(s) will be built.

02105- DEBRIS REMOVAL:

The contractor is to remove all loose debris from the attic or crawl space. This will include specified items on the SOW that may not be considered debris.

02110- DEMOLITION:

02111- BUILDING / STRUCTURE DEMOLITION:

This section refers to any out-buildings on the lot of the subject property (Detached Garages, Sheds, Animal Shelters, Gazebos, Etc.) that are specified on the SOW When called for, structure is to be completely demolished. Disposal of all debris in a code legal dump site is required. Structure is to be removed entirely to expose the dirt surface beneath, including all wood, masonry, and concrete floors and foundation elements. Area must be raked clean to ensure all sharp objects, glass and debris are removed.

02112- SELECTIVE DEMOLITION:

Contractor will complete all selective demolition on the interior and exterior of the structure as specified on the SOW. When removing walls or room additions, contractor will ensure smooth removal from and safe shoring of main structure. When removing specified assemblies or elements where there is damage caused by water, insect, or simple materials failure, the contractor is to notify the housing inspector before proceeding with and additional work. The contractor shall remove those items in their entirety back to solid and clean materials with an executed change order. All materials

Connect – Collaborate – Communicate removed are to be disposed of in a legal dump-site. No materials with exposed nails and jagged edges that could pose a safety hazard are to be left on site. The contractor will use care when doing selective demolition to protect adjacent surfaces and surrounding areas by shoring or placing protective covering or dust controls as may be necessary.

Any materials that are to be re-used such as doors, trim, lumber or fixtures will be cleaned and stored in a proper manner as to prevent damage or hazard.

02200- FOUNDATIONS & EARTHWORK:

02210- SITE GRADING & BACKFILL:

Provide all soil as needed to backfill around the perimeter of the entire foundation, as specified in the SOW in order to create positive drainage to a minimum of 4 ft. away from the structure. The contractor will install level and rake soil around the yard as needed to fill any large holes that may exist that could be considered a tripping hazard on the site. Any leftover materials and debris will be removed from site and site will be left clean and fine graded.

02211- REMOVAL OF SKIRTING (UNDERPINNING):

When removal of skirting is required to accomplish any foundation work, the contractor will remove the skirting with care and reuse such skirting when foundation work is completed and inspected. If skirting cannot be removed easily in order to be reused or if skirting material is in an irreparable condition, the contractor will immediately notify the Housing Inspector to determine an alternate course of action or solution.

02214 ACCESS DOORS TO CRAWL SPACES:

Access doors shall have 2” x 4” pressure-treated pine lumber frames with ¾” B.C.

exterior grade plywood or T-111 doors, T-strap hinges, hasp and turnbuckle in exterior grade hardware. Contractor is to trim the outside of the access door with 1” x 4” pine.

Caulk trim as needed & prime and paint entire door, frame, and trim with two (2) coats paint. Stops are to be placed on inside of frame preventing door from being forced inward damaging the hinges.

02215 FOUNDATIONS:

02215.1 Post & Footing

Contractor will obtain required permits for any foundation work.

For the purpose of these specifications, "foundation" will refer to all materials below the floor joists (for wood-frame structures) and will include perimeter beams, posts, footings, piers, shims, crawl space, girders and sills. The following L through K, are items that refer to work on the structural foundation or parts thereof:

A) Foundations that are to be raised and leveled to the best possible plane, will be raised to provide the maximum clearance possible from the bottom edge of the floor joists to the finish grade below, dependent on existing conditions and leveled to best plane possible.

B) No wooden structural member will be closer to the ground than 18", unless the wood is properly treated to prevent decay or deterioration or is of a species that is naturally resistant to decay, such as Bois D’Arc.

C) All concrete pier and beam, post and footing, and beam foundation work is to be done as to meet or exceed the requirements of the City’s Building Codes & Ordinances and specified by the RS&S.

D) Dirt at crawl space from post and footing must be removed, raked and leveled.

E) Footings will be of Concrete 18”x18” square, will extend at least 12” deep into undisturbed soil and will be of 3500 psi compressive strength-. All posts will sit on

Connect – Collaborate – Communicate flat footings and are not to extend more than 2” and no less than 1” into the concrete footings. The bottom of all footings will contain three #4 steel re-bars each way at bottom. (6 total) (See illustration).

F) Posts, unless otherwise specifically authorized by the SOW, will be of solid concrete, treated wood, or naturally decay resistant woods. Minimum size of all posts will be 8” in diameter or equivalent and will not project beyond the building perimeter framing of the structure.

G) Concrete posts will be anchored to the footings with a minimum of two lengths of #4 rebar which extend to within 3” of the top surface of the concrete posts. Rebar will extend into the concrete footings and be firmly attached to the rebar mat in the bottom portion of the footing. (See illustration.)

H) When installing post & footings, spacing will be based upon the span limits of the new or existing members used for the floor beams. Refer to the City Building Codes as applicable to this type of work.

Rule of Thumb: post spacing: 6 ft. on center for 4” x 6” beams 8 ft. on center for 4” x 8” beams I) All concrete utilized in any type of foundation work will have a minimum content of 5 & ½, 94 lb. bags of Portland Cement per cubic yard of concrete and contain no more than 7 & ¼ gallons of water per bag of cement and a compressive strength of not less than 3,500 pounds per square inch.

J) When installing new post and footing foundation complete, the contractor will insure structure is raised and leveled to best possible plane. Work will include reinforced concrete footings and posts, steel shims, solid 4x sills (beams).

K) Shims installed between posts and sills will not exceed a total thickness of 2" and must be of steel.

02215.2

02216- SILLS & GIRDERS:

Sills will be installed to safely support the loads imposed on them. Sills will be a solid 4” x 6” (nominal) in size minimum unless otherwise specified by SOW.

A) All sills and girders will be properly supported such a manner as to ensure a firm and stable foundation for the structure.

B) Any girder joint or splice will be supported by a post or pier; when a girder is spliced over a support, an adequate tie system will be provided.

02217- CROSS VENTILATION:

Cross ventilation will be provided in every crawl space, cellar or basement. This will consist of no less than one (1) window, opening or vent located within 3 feet of each corner of the structure. The aggregate ventilation area will not be less than Two (2) SF for each twenty-five (25) LF. of the perimeter wall or 1 square foot for each 150 square feet of floor plan.

A) All foundation vents will be of galvanized metal or aluminum with screens not greater than ¼” wire mesh hardware cloth. Vents will be 8” x 16” minimum in size unless otherwise specified by Housing Inspector.

B) When specified, The contractor will re-screen existing foundation vents with 1/8" to ¼" wire mesh hardware cloth.

C) Vents installed in concrete perimeter beams will be of the masonry type.

02220- EXCAVATING & BACKFILLING OF HOLES:

The contractor will have all utilities located and marked prior to excavation. All

Connect – Collaborate – Communicate excavations will be done in such a manner as to minimize the disturbance of and damages to the yard. All trenches and excavations will be back-filled and compressed to ensure proper restoration of the final grade of the yard. The contractor will rake-out all large loose debris.

02230- LANDSCAPING:

02231- LANDSCAPE TIMBERS & EDGING:

The contractor will install landscape border timbers. Timbers will be a minimum of 4” x 4” (normal) in size, will be of pressure treated timber and will be pinned to the ground using an 18” length of #4 rebar through pre-drilled holes and pounded into soil to secure the timbers in place. Alternate item: Use of 4” metal landscape edging is also approved.

NO plastic or PVC edging will be accepted

02232- SEEDING:

The contractor will re-seed & mulch all areas that were disturbed by his operations and construction on site.

02233- SODDING:

The contractor will smooth out all soils and rake smooth then install 1” fresh cut sod to match the ground cover surrounding the newly patched or sodded areas. Contractor will water all areas sodded generously for a minimum of 5 consecutive days.

02234- TREES AND SHRUBS:

The contractor will replace trees or shrubs damaged during repairs or construction or as required by the City of Dallas Landscape Ordinance. Contractor will match existing trees and shrubs as closely as possible.

02250- SOIL TREATMENTS:

02251- TERMITE CONTROL:

A) Contractor will hire the services of a licensed pest control operator to inspect for active termite infestation. Operator will complete and forward FORM ‘RHL-921’ to the Housing Inspector with all pertinent information as required to be filed.

B) If inspection is positive for termite infestation and the Housing Staff authorizes treatment as recommended by the Operator, the Operator will be called back by the homeowner to begin work to eliminate the infestation. Contractor will include the costs of this treatment in proposal. Acceptable levels and concentrations of chemicals are listed in Table One. Effective soil treatment depends upon placing a sufficient amount of chemical so that adequate dispersal in the soil will provide a barrier to all routes of termite entry. All extraneous cellulose debris will be removed from any accessible crawl space under the structure. The use of any approved chemical will be governed by the manufacturer’s label requirements and the product must be in compliance with the Federal Laws governing all use and distribution of hazardous chemicals.

A one (1) year renewable guarantee will be provided to the Home Owner by the pest control operator against the recurrence of subterranean termites; this will be submitted on FORM ‘RHL-922’.

02252- COCKROACH & INSECT CONTROLS:

A licensed pest control operator will be employed to treat the entire structure for roaches/insect/spiders. The treatment will include the application of approved chemicals in a proper manner to all cracks, crevasses, holes and surfaces as required to eliminate the infestation for a period of not less than thirty (30) days. Re-treatment required within the thirty-day period will be done again without charge to the Owner, Contractor, and

Connect – Collaborate – Communicate the City of Dallas, provided that the Homeowner has cooperated in maintaining a clean house which is not conducive to the harboring of roaches/insects/spiders.

A) Treat the entire structure for the elimination of cockroaches, other insects, and spiders by the use of approved chemicals and methods so that all insect vermin are eliminated for a period of thirty (30) days. The pest control operator is to notify the housing inspector and the homeowner a minimum of two (2) days prior to the treatment of the interior and or exterior is to occur.

B) The homeowner is to clear and fully clean all kitchen cabinets of dishes and glassware and all food prior to treatment and to wash all cabinets, floors, walls and appliances so as to have a clean surface for the application of chemicals.

02253- RODENT CONTROLS:

A pest control operator will be used for any and all chemical control measures for rodent elimination. The contractor will first secure the entire perimeter of the structure so as to seal all holes in the walls, floor or roof from rodent infestation, and treat entire structure for the elimination of rodents by use of approved chemicals or traps.

02254- VEGETATION CONTROLS:

When specified on the SOW, Contractor will cut down all tall weeds and overgrown vegetation on the lot that might be harbor to small wild animals and rodents. Once the weeds have been cut down to grade, Contractor will spray a heavy- duty weed killer to stop or slow down the re-growth of the weeds. This especially applies to weeds and vegetation growing around the perimeter of the structure and fence lines.

02500- SITE DRAINAGE:

If specified on the SOW, Contractor to install catch basin with buried PVC drain pipe to drain water away from structure. The Housing Inspector to specify location.

02520- FRENCH DRAINS:

If specified in the SOW, Contractor is to install a drainage system to divert water away from the structure. The contractor is to dig a trench 16" wide and 16" deep around the structure at the drip line of the roof. The bottom of the trench must be lined with 6” of rock and 4" perforated schedule 40 PVC will be placed in the trench with holes to the bottom and then trench will be filled with rock. The contractor is to tie in the trench around the structure to a trench of like dimensions and construction leading to the street.

There will be a catch basin installed in the system prior to draining into the street. There will be no reverse flow of run off in the piping.

02540- EROSION CONTROLS:

The term ‘Erosion Controls’ refers to the use of silt fencing or straw bales or other approved methods of controlling soil erosion from the site into City of Dallas storm sewer systems until sod or grass has been put in place. If the City of Dallas Building or Storm Water Authorities require the use of Erosion control measure for any part of the project and site work, the contractor will conform to all the requirements set forth by the department for the duration of the project.

02550- SITE UTILITIES INFORMATION:

Contractor to ensure all utilities are located and marked prior to trenching or grading.

02600- PAVING & SURFACING:

02610- ASPHALT PAVING & BASE (Residential Drive):

Where called for in the SOW, install a minimum of 5” of compacted crushed concrete and stone mix base, at least 10 ft. wide over a properly leveled and compacted sub-soil with a minimum of 2” asphalt pavement overlay to produce a 9 ft. wide finished

Connect – Collaborate – Communicate driveway.

02611- CRUSHED STONE PAVING:

A) When specified in the SOW, Contractor will install a minimum of 6” of crushed concrete or gravel with 4” x 6” pressure treated timbers on each side over the entire length of the 9 ft. wide drive. Soil under crushed rock will be leveled and compacted in order to properly support the new drive.

B) When specified in the SOW, Contractor will add gravel to the existing drive to meet code specifications.

02613- ASPHALT CURBS:

When specified in the SOW, Contractor to install the required lineal footage of 6” asphalt curbs as called for in the SOW, with preparation and installation as required per the TxDOT’s “Standard Specifications for Construction”.

02617- PAVEMENT SEALING & REPAIRS:

When specified in the SOW, Contractor to make repairs to the existing asphalt pavement by patching holes, cracks, and voids as needed and include all materials and labor to clean areas and fill with new pavement, compact as needed. If required, seal-coat entire pavement area with a bituminous liquid sealer with added silica sand for performance after entire lot has been cleaned off and blown by air to remove all dust and debris. Restripe lot as needed.

02700- SITE IMPROVEMENTS:

02710- FENCES & GATES:

All posts, whether steel or wood, will be set with a 2” diameter clearance with a minimum, depth of 2’in a concrete footing over a 4” gravel base. The concrete will be sloped down from the post to surrounding grade to divert water away from the base of the post. The concrete around the base of the posts will be a minimum of 2” thick at any point, except at the bottom of the post where it is to set on 4” of gravel to facilitate water drainage away from the post. Contractor to allow a setting time of 24 hours before stringers and boards are nailed or wire is attached to the posts. Once concrete has set and stringers or wire installed, Contractor to fill the gap between the post and the concrete around it with a tar or caulking seal to provide an expansion collar and aid in preventing moisture from being held against the wood or metal post and causing decay or rust and premature failure.

02711- CHAIN-LINK FENCES:

All chain link fences will be installed in accordance with the Manufacturer’s specifications, stretched and secured in a taut and workmanlike manner without sags or voids. All gates will be provided and installed with hinges of sufficient number and strength to prevent gate from sagging and a latching device capable of being secured with a common pad-lock. All metal posts will be capped securely to prevent water entry into the posts. Posts will not be spaced at a distance greater than 9’- 0” OC. unless called for by the Manufacturer’s specifications of the fencing system being installed.

02713- WOOD FENCES:

All wood posts will be capped with metal caps and screwed in place or the top of the wood post will be cut at such an angle as to prevent the collection of moisture on top of the post. Posts will not be spaced at a distance greater than 8’– 0" O.C. and installed plumb and true to facilitate installation of modular fencing units. All posts will be no less than 4” x 4” pressure treated lumber for below ground application and all stringers will be no less than 2” x 4” treated lumber with 2 rows of stingers minimum where fences are 5 ft. or less and 3 rows of stringers where fences are over 5 ft. No bottom stringer

Connect – Collaborate – Communicate will be closer than 8” to the natural ground line at the post. All Rails, stringers, pickets or boards used to construct the fence will be securely nailed or screwed in a workmanlike manner to ensure sound and durable construction. 2" galvanized metal posts with post clamps are acceptable in lieu of wood posts.

Treatment of all wood fencing will be accomplished before assembly to ensure that all (six) surfaces of the boards are treated and protected. All wooden fencing materials not naturally resistant to decay will be coated with a protective sealant such as paints, stains, or oil treatments as may be approved for use in the out of doors.

02714- RETAINING WALLS:

When specified in the SOW for purposes of erosion control, Contractor to construct a retaining wall. Retaining wall material will be of poured concrete, concrete block, pressure treated landscape timbers or creosote treated rail road ties. All retaining walls will be lined with landscape fabric, back filled with a minimum of 6" gravel, and filled with clean fill dirt. If treated landscape timbers or creosote railroad ties are used, Contractor to pin first tier to the ground with #4 rebar and spike a dead-man timber every 4' midway or higher on wall. If wall is constructed with poured concrete, Contractor to construct wall according to these specifications and specification 03100 concerning architectural concrete. Contractor to install ¾" PVC weep holes at base of all concrete retaining walls.

02715- PRE-FABRICATED ‘OUT’ BUILDINGS:

When specified in the SOW by the Housing Inspector, Contractor will install and construct a shed of pre-fabricated metal panels or a wood framed storage shed with cementations fiber paint grade siding Contractor to include skids or cinderblocks and all assembly. Material will be of high quality. All Construction materials and construction methods shall conform with all similar practices as prescribed in previous divisions. (i.e.- Foundation, Framing, Windows, Doors, Roofing, etc.).

02750-IRRIGATION SYSTEMS REPAIRS:

If required, Contractor will make basic repairs to the existing irrigation system to make it operate properly as it was intended. Contractor will make these repairs without charges if in the course of his operations for the project, he/she cut, broke, or removed any parts of the irrigation system.

02752- GENERAL CLEAN-UP:

At the end of each work day, Contractor will ensure that the site is clean and orderly with no loose materials or trip hazards. The contractor assumes liability for any injuries that occur due to material and debris posing a hazard. Construction debris is not to be left on site unless it is placed completely inside an approved dumpster or trailer. All exposed holes and trenches left open overnight will be protected and clearly marked or flagged to be plainly visible to pedestrian or vehicle traffic or covered safely.

SECTION 3 – CONCRETE:

03100- ARCHITECTURAL CONCRETE:

03110- ARCHITECTURAL CONCRETE:

All Concrete work will meet or exceed the FHA Minimum Property Standards and City of Dallas Codes & Ordinances that apply. Discharge all concrete within One (1) hour of mixing with water and place successive batches within 20 minutes of each other unless separating with a full expansion joint Placement of all concrete will also conform to ACI 301 and ACI 304-73 guidelines.

03111- FLAT WORK:

Connect – Collaborate – Communicate

All concrete used for flat-work will be 3500 psi, Portland cement with a maximum slump of 4” unless otherwise specified. All concrete will be placed on compacted virgin soil with compacted sand or gravel base, against straight solid forms, and poured only when the outside temperatures are between 40 and 100 degrees F. All concrete will be free of voids and air pockets and will be protected from the weather while curing for 48 hours.

All forms will be stripped from concrete within 24 hours of pouring and backfilling against the new concrete will not occur prior to 3 days after the pour.

All concrete slabs located under living areas within the structure will have a 6 mil, polyethylene film vapor barrier per ASTM C-171 and applicable City of Dallas Codes.

All forms, placement of re-bar steel & wire and compacted soils will be inspected and approved by the City of Dallas, Building and Housing Departments before the contractor will be allowed to pour. Contractor is to provide the Housing Inspector with the approved ‘green’ tag as part of the contract agreement.

Steel dowels will be used to connect the new concrete to the older existing concrete and set with a concrete epoxy into existing concrete.

03112- CONCRETE STEPS:

A) Poured in place - Where concrete steps are called for, they will be poured monolithically and according to the requirements of the City of Dallas Building Codes and 03111 at paragraph #4 above.

C) If pre-cast steps can be substituted or are called for, they must be set level and on a poured concrete pad or ribbons of no less than 6” thick with wire mesh. The steps are to be set flush against the wall or landing and lined up so that the top step is not lower than 7” below the top of the landing or the porch it is servicing.

03113- CONCRETE PORCH & PATIOS:

Where a concrete porch or patio is called for, concrete reinforcing, sand base and other specifications will conform to the City of Dallas Building Codes & Ordinances. The minimum width for the footing will be 12" and the minimum depth will be 6".