GENERAL CONDITIONS

and
CONSTRUCTION SPECIFICATIONS

PROJECT: A PROPOSED A. TYPE RESIDENTIAL BUILDING

LOCATION: HOMESTEAD, BAMBANG, NUEVA VIZCAYA
OWNER: MR. & MRS. JOELSON C. ROSARIO

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CONSTRUCTION SPECIFICATIONS

This set of specifications shall comprise providing all objects, goods, procedures, vegetation, machinery,
appliances, and supplies, as well as in carrying out any tasks that may be necessary proper or incidental, to
finish excavation, back filling, grading, and filing in compliance with this part of specification all applicable
plans and drawing, and in accordance with the terms and conditions of the agreement.

The plans, details regarding the materials, craftsmanship, and standards that must be adhered to during
the project. Detail drawings and these Specifications shall be considered as complementing each other, so
that what is mentioned or shown in one, although not mentioned or shown in the other, shall be considered as
appearing on both. In cases of conflict between the two, the same should be referred to the designing
Architect/Engineer for resolution.

A. GENERAL CONDITIONS

All parts of the construction shall be finished with first class workmanship, to the fullest talent and
meaning of the plans and these Specifications, and to the entire satisfaction of the Architect/Engineer and the
Owner.

The construction shall conform to all the requirements of the National Building Code, as well as the local
rules and regulations of the Municipality/City of _____Bayombong,NuevaVizcaya___, Philippines.

B. CLEARING THE SITE

The building site shall be leveled according to the plans and cleared of rubbish, roots and other
perishable and objectionable matters to a suitable sub-grade.

All such unsuitable materials shall be removed from the building site and spread uniformly over the
areas adjacent to the proposed building, or otherwise disposed of as may be directed by the Architect or
Engineer in charge of the construction.

C. STAKING OUT THE BUILDING LINES

The building lines shall be staked out and all lines and grades shown in the drawing established before
any excavation is started. Batter boards and reference marks shall be erected at such places where they will
not be disturbed during the excavation of the building.

D. EXCAVATION

The contractor is responsible for excavating as much as is required for foundations to grades. indicated
without additional payment, encompassing all additional excavations that are required and essential for the
appropriate execution of the operation. The building contract covers incidental excavation, compacting, and
tamping to level the bottom of the footings.

All excavations shall be made to grade indicated in the drawings. Where the building site is covered with
any kind of fill, the excavation for footings should be made deeper until the stratum for safe bearing capacity
of the soil is reached.

Whenever water is encountered in the excavation process, it shall be removed by bailing or pumping,
care being taken that the surrounding soil particles are not disturbed or removed.

E. BACKFILLS

As soon as work permits, all excavations must be backfill with concrete.Piers and walls are built to the e
ngineer's specifications or to their maximum design strength.

Following the removal of all forms from piers, walls, and footings, the Excavation materials free of
refuse and undesirable stuff will be used for backing up all around them. This filler is intended for usage in
layers no deeper than 0.15 meters. (6"), fully manipulated.

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 Where a slab rests on fill or the ground, it must be leveled and precisely graded, then heavily tampered
with 0.10 mts (4") of gravel and sand, prior to the concrete being poured.

After concrete for foundations is hard enough to withstand pressure resulting from fills, the materials
removed from excavations shall be used for backfill around them.

Backfil and fills shall be placed in layers not exceeding 150mm in thickness, and each layer shall be
thoroughly compacted by wetting, tamping and rolling.

F. CONCRETE WORKS

Every concrete project must be completed in compliance with the standard "specification for
Government-adopted "government reinforced concrete," as long as it complies with the particular guidelines
outlined here for "concrete masonry works," and the updated concrete proportioning as detailed below.

All concrete shall be mixed thoroughly until there is a uniform distribution of the cement and aggregates,
and should be deposited as nearly as practicable in its final position, care being taken to avoid segregation of
the aggregates.

Water to be used for mixing concrete shall be clean and free from injurious amount of oil, acids, alkalis,
salts, and other organic materials.

G. PROPORTIONING OF CONCRETE

2. All concrete works shall be done in accordance with the standard specifications for plain and
reinforced concrete as adopted by the Government. Cement to be used shall be Republic Cement
Portland cement, Union Extra Strenght Pozzolan cement or any other equivalent brands more
readily available in the locality. Alternative cements so selected must meet the requirements of
Portland and Pozzolan cements, and approved by the Architect or Engineer in charge of construction.

The following proportions of concrete mixtures shall be used for the various parts of the building:

Columns and Footings - Class A (1:2:4)

Concrete Hollow Blocks Footings - Class B (1:2 ½: 5)
Reinforced Concrete Beams and Slabs - Class A (1:2:4)
Concrete Slab Floor on Fill - Class B (1:2 ½: 5)
Septic Vault Cover - Class A (1:2:4)

Class A concrete shall be a mixture of one (1) part cement, two (2) parts fine aggregate and four (4) parts
coarse aggregate by volume, plus enough clean water to make the mixture into a pliable paste.

Class B concrete shall be a mixture of one (1) part cement, two and a half (2 ½) parts fine aggregate and
five (5) parts coarse aggregate by volume, plus enough clean water to make the mixture into a pliable paste.

The fine aggregate for concrete shall consist of natural sand, or of inert materials with similar
characteristics, having clean, hard and durable grains, free from organic matter or loam.

The coarse aggregate for concrete shall consist of crushed rock of durable and strong qualities, or clean
and hard gravel. Size of the coarse aggregate to be used shall vary from 20mm to 40mm (3/4” to 1 ½”).

H. FORMS FOR CONCRETE WORKS

All forms for concrete works shall be properly braced or connected together so as to maintain the correct
position and shapes of the concrete members. Forms shall be constructed sufficiently tight to prevent bulging
and seepage of water.

Forms shall not be removed until the concrete has attained sufficient strength to support its own weight
and any loads that may be placed on it. Side forms of beams and girders may be removed earlier than the

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bottom forms but additional posts or shoring must be placed under the beams or girders until they have
attained their strength.

I. CONCRETE SLAB FLOORS ON FILL

Before pouring a concrete slab, ensure the site is cleared, leveled, and compacted. Install secure
footwork, place necessary reinforcement, and consider a stable base layer if the soil is deemed unstable.
Concrete slabs on fill shall be poured on a gravel bed of not less than 100mm thick. Each concrete slab
course to be poured shall not be more than one (1) meter wide, and each course shall be poured alternately to
the indicated floor finish.
J. SECOND FLOOR TOILET-BATH AND BALCONY CONCRETE FLOOR SLABS

When preparing the concrete for upper floor slabs of Toilet-Bath and balcony it shall be made waterproof
by adding Sahara cement waterproofing compound to the mixture.

The proportion of the waterproofing compound to a given volume of concrete mixture shall be as
recommended by the product manufacturer.

K. STEEL REINFORCING BARS

All steel reinforcing bars to be used in this construction shall consist of round deformed bars with lugs or
projections on their sides to provide a greater bond between the concrete and the steel. All steel reinforcing
bars to be used shall be Fe500 Grade 16-mm TMT bars

Furthermore, appropriate quality control procedures need to be followed to guarantee that every steel
reinforcing bar satisfies the required Fe500 Grade and 16-mm TMT specifications. A careful check is
required before to installation to ensure that there are no coatings, corrosion, or scale that might weaken the
bars' connection with the concrete.

All steel reinforcing bars shall be accurately placed and secured against displacement by tying them
together at each bar intersection with Gauge No. 16 galvanized iron wire.

The steel reinforcing bars indicated for footings, columns, slabs, beams, girders and other concrete
members shall all conform to the number, size and spacing as indicated in the drawings or schedule of steel
reinforcements.

No metal reinforcement shall be installed in place unless it is free from rust, scale or other coatings,
which will destroy or reduce the bond with concrete.

L. CONCRETE HOLLOW BLOCKS

In the case of the drawing's walls and partitions that call for concrete hollow blocks, employ locally
produced, authorized machine blocks.

A. Specimens must be indicative of the entire lot of units that they are chosen. (Twenty days prior to the
commencement of work)

B. All horizontal reinforcement must have 3/8" diameter reinforcing bars. each horizontal reinforcement
must be fastened to the vertical reinforcement at their intersection. needs to be positioned and fastened to
the vertical every three layers of hollow blocks. reinforcement at the intersections' 0.80-meter center

Concrete hollow blocks to be used in this project shall be Stretcher block All exterior concrete
hollow blocks to be used for first floor walls shall be at least 150mm thick, while concrete hollow blocks
for interior walls unless otherwise indicated, shall be 100mm thick. For interior CHB walls where
plumbing pipes and fittings shall be located, the thickness shall be at least 150mm.

Concrete hollow block to be used for walls above the first floor, shall be 100mm thick.

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 The concrete hollow block walls shall be laid, and the cells filled with cement mortar consisting of one
(1) part Portland cement and three (3) parts sand by volume. They shall be reinforced with round deformed
bars, 10mm diameter, spaced not more than 0.60m on centers, bothways.

All exposed surfaces of concrete hollow block walls shall be finished with the specified materials
indicated on the elevation drawings.

The mixture of cement plaster for concrete hollow block wall finishes indicated in the drawings shall be
one (1) part cement, one (1) part lime and three (3) parts sand.

M. FLOOR FINISHES

The materials to be used as floor finishes for the rooms of the building shall be as follows:

Living Room : Ceramic

Dining Room : Ceramic
Kitchen : Wood Flooring
Bedroom : Ceramic
Bedroom : Ceramic
Hall : Ceramic

N. TILE WALL AND FLOOR FINISHES

The toilet and bathroom floors shall be finished with Porcelain tiles carrying the brand,
Mariwasa Tiles.

The walls of the toilets, bathrooms, top of kitchen cabinets and laundry tub, and their adjacent walls shall
be wainscoted with 200mm x 200mm (8”x8”) ceramic tiles.

Interior and exterior corners of tiled floors and walls shall be provided with the necessary tile mouldings.
All tiles for floor, walls and mouldings shall be free from laminations, serrated edges, chipped-off
corners and other defects, which would adversely affect their appearance and strength. All joints between
tiles and mouldings shall be filled with Tile Grout white cement and then carefully wiped.

Before the tiles and mouldings are laid in place, they shall be thoroughly soaked in water if
recommended by the manufacturer. Mortar to be used in setting the tiles and mouldings shall be a mixture of
one (1) part cement and two (2) parts sand by volume.

O. LUMBER

Lumber to be used in this project shall be well seasoned, thoroughly dry and free from loose or unsound
knots, shakes or other imperfections impairing their strength or appearances.

In addition, the timber needs to meet the designated moisture content guidelines to avoid problems like
shrinkage or warping after installation. Thoroughly inspecting the timber before using it is essential to make
sure there are no flaws that might weaken its structural integrity or appearance.

The kind of lumber to be used for the various parts of the building shall be as follows:

Exterior door frames : Narra Wood

Interior door frames : Narra Wood
Forms, Stakes, Vertical supports for concrete slabs : Steel (one sky Philippines)
Purlins, Wall studs, Ceiling Joists, Cleats : Plywood(wilcon Depot)
Fascia Boards, Cabinets/Closet Shelves : Plywood(wilcon Depot)
Stair Treads, Stringers, Risers and Handrails : Steel

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P. FRAMES

All wood frames for windows, doors, cabinets, and closets shall be done as much as possible, with
carefully fitted mortise and tenon joints. All door and window frames to be installed on concrete hollow
block and other masonry walls shall be anchored with 76mm (3”) common wire nails all around the contact
surfaces. And all such contact surfaces shall first be painted with DAVIES Woodshield wood
preservative before the frames are installed in place.

All unexposed lumber such as posts, plates, floor and roof beams, trusses or rafters, floor joists and
bridgings, purlins, cleats, ceiling joists, wall studs, etc. shall likewise be treated with Solignum Wood
Preservative wood preservatives after they have been installed in place.

In order to prolong their lifespan, all exposed lumber parts, including beams, trusses, plates, posts, and
others, need to be treated with Solignum Wood Preservative after installation.

Q. ROOFING

The roof shall be covered with Metal Roofing Sheets;Union Galvasteel pre-painted roofing sheets as
shown on the plans. The roofing sheets shall be secured to the purlins with 6mm diameter (1/4” Ø) G.I. rivets
and Gauge No. 26 plain G.I. straps cut long enough for bending around the specified size or purlins. The
straps shall each be at least 25mm wide corners chipped off at the riveting ends.

Ridge rolls, hip rolls and valleys to be used shall be those compatible with the Galvanized
Iron(G,I)Straps pre-painted long-span roofing sheets. They shall lap the roofing sheets at least 250mm.
The ridge rolls, hip rolls and valleys shall be riveted to the roofing sheets, in addition to the rivets engaging
the G.I. straps in securing the roofing sheets to the purlins.

R. ELECTRICAL WORKS

The electrical installation shall be done in accordance with the approved plans and under the direct
supervision and control of a licensed Professional Electrical Engineer (PEE).

All conductors shall be used for this project shall be rubber-covered, double braided, single copper
conductor of the approved type of building wires. They shall rubber covered, double braided, single copper
conductors. If run in underground conduits or conduits installed at wet locations, conductors shall be
thermoplastic type “TW” or rubber covered type “RW” use “Phelps Dodge” electrical wire and cables.

All electric works and materials shall conform to the provisions of the latest edition of the Philippine or
National Electric Code.

The electrical wiring shall be installed through Omni Electrical and lighting coilable PVC
electrical conduit, fittings and appurtenances that conform to ISO dimensions.

The type of electrical services to be supplied to the building shall be 220 volts, AC, single phase.

There shall be only one service drop from the nearest Utility pole to the proposed building.
Electric wires for light and power shall not be smaller than 13.5mm² (AWG No. 12), 600V insulation.

Electric materials to be used for the electric installation shall be as follows:

Automatic circuit breaker : Boston panel box 8b

Flush wall switches, convenience outlets and
Other wiring devices : DP3-S213G Omni Graphite Designer
Wires and Conductors : Phelp Dodge
Conduits and Raceways : Moldflex
NEMA 1 Enclosure : GA 26
(List other materials, if necessary)

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 The spare circuit shall be provided with an empty PVC pipe, size 19mm Ø which should extend at least
300mm above ceiling line. The grounding wires shall be identified and all wires shall be color-coded for easy
identification.

The panel board shall be provided with a circuit directory.

S. PLUMBING WORKS

All plumbing works for this project shall be done in accordance with the approved plans and under direct
supervision and control of a licensed Sanitary Engineer or Master Plumber.

In addition, great care should be taken to ensure that the plumbing is graded or pitched properly,
giving top priority to smooth circulation, effective drainage, and the avoidance of noise and water hammer.
To ensure compliance and maximum performance, the plumbing system must be in conformity with both
the National Plumbing Code and the particular laws and ordinances that are in effect in the local jurisdiction.

Piping for drain, waste and vent shall be done using Atlanta Industries uPVC push-on system.
For the in-house water supply installation Neltex Development Oc. Inc uPVC pipes and fittings shall
be used.

The plumbing fixtures and accessories to be provided and installed shall be as follows:

Water Closets : American Standard

Lavatories : American Standard
Kitchen Sinks : American Standard
Shower Heads : American Standard
Soap Holder : VIMI Soap holder wall mounted
Toilet Paper Holder : VIMI Tissue holder wall mounted
Floor Drain : Aco; size 60cm x 7cm Stainless Steel
(List other materials, if necessary)

Where a sanitary sewer system of sewage disposal is not in operation in the locality, a standard
septic vault shall be constructed as shown in the drawings.

T. DOORS AND DOOR FRAMES

Doors and door frames shall conform to the sizes, designs and kind of materials shown in the detailed
drawings, schedule of doors or as per the bill of materials.

All wooden doors shall be hung on at least 3 pieces of 102mm x 102mm (4”x4”) loose-pin bearing
template hinges.

Door locksets to be used shall be Kwikset brand to be installed 1024mm from the finished floor
line.

Rails and rollers for sliding doors shall be Blum steel sliding door roller set .

U. WINDOWS AND WINDOW FRAMES

To ensure proper installation and compliance with project standards, windows and window frames
must perfectly follow the required sizes, designs, and materials stated in detailed drawings, window
schedules, or the bill of materials.
V. STEEL TRUSSES

To ensure accuracy and adherence to the project's structural requirements, the steel trusses used in
this project must match the dimensions, design, and materials stated in the bill of materials or the detailed
drawings.

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W. STORM DRAINAGE

All downspouts from the roof gutters shall end in concrete catch basins, to which 6” Ø reinforced
concrete drainage pipes shall be connected leading to the street gutter fronting the building.

X. PAINTING AND VARNISHING

All painting work for this project, except as hereinafter specified, shall be done with the use of
Davies Latex paint products.

The painting contractor shall supply all tabor, paint materials, tools, staging and equipment necessary
and shall perform all painting and finishing work as shown in the schedule of painting and finishing work for
this project.

The painting contractor shall store his materials in one place in the building to be kept neat and clean,
care being taken in the storage of paints, oils, etc. to prevent danger of fire. Oily rags shall be kept in metal
containers and shall be removed from the building every end of the working day.

Upon completion of the painting works, the painting contractor shall remove any paint spots from all
finished work. He shall present his work to the Project Owner or Architect/Engineer-in-charge of
construction, free from blemishes and rubbish generated by his workers.

It shall be the painting contractor’s responsibility to protect his work and those of other contractors
during the time of his work are underway. He shall be responsible for any damage to the work or property of
others caused by his employees or by himself.

Before any painting is done, all surfaces shall be cleaned, smoothed and freed from dust, dirt, greased,
mortar, rust and other foreign substances. All parts where paint remover has been used shall be washed off
with paint or lacquer thinner. All paints shall be spread evenly and carefully. All paint materials shall be
Safe and non- hazardouz or approved quality.

PAINTING WORKS:

A. Concrete and Masonry Works

1. Remove all loose dirt, excess mortar or any film left from oil, grease or concrete curing
compound.
2. Treat with one (1) kilo of zinc sulfate crystals to a gallon of water.
3. Putty surface with patching compound.
4. Priming coat of Acrylic Primer and Sealer.
5. Finishing coat of Latex Paint of desired color and shades.

B. Interior and Exterior Woodworks

1. Thoroughly sand to remove excessive roughness, loose edges, slivers and splinters then brush to
remove dust.
2. Knots, sappy streaks and strain from wood preservatives shall be given a thin coat of shellac.
3. Fill all cracks, nail holes and other surfaces defects with patching paste.
4. Priming coat of oil paint and finish with three (3) coats of oil based paint of desired color and
shades.

C. Metal Works

1. Remove rust, grease or other foreign substances.

2. Wash with metal treatment solution.
3. Scrape, wire brush, sand blast or clean with flame.
4. Priming coat of metal paint followed by two (2) coats of finishing enamel metal paint.

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 VARNISHING:

For a meticulous finishing process, the following steps are crucial to achieve a smooth and polished
surface:

1. Sand surface thoroughly.

2. Putty all cracks and other work imperfections with paste filler.
3. Apply oil stain.
4. Apply lacquer sanding sealer.
5. Sand surface along grain.
6. Spray three (3) coats of clear dead flat lacquer.
7. Polish surface using cloth pad.
8. Spray gloss lacquer if gloss finish is desired.

Y. TEMPORARY PROTECTION

The owner/contractor shall provide and maintain such temporary protection of the work as required to
safeguard completed or partially completed work.

The owner/contractor shall provide all necessary rough stairs, ladders and runways for convenient access
to all parts of the building until permanent facilities are in place.

Lumber shall be protected and kept under cover to prevent damage both in transit and at the site.
Material shall not be delivered on duly long before it is required for the proper conduct of the work.

A two (2) meters high “swami” or corrugated G.I. sheets supported by wood frames spaced at two (2)
meters on center for temporary fencing.

Z. DEVIATIONS

Following the initial construction design is required, however changes or alternative materials may be
explored with the approval of the building owner, architect, and engineer. Changes are allowed as long as
they don't negatively impact the building's structural integrity or longevity. This cooperative strategy
prioritizes the integrity of the finished building while ensuring that the construction process is flexible.

Prepared by:

Milver Jesy F. Villanueva

Student

Approved by:

Ar. Irone Jay C. Diozo, UAP, SO

INSTRUCTOR