Standard Classroom Siza

7/30/2019 Standard Classroom Siza

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Revised Minimum Performance Standards/ Specifications(by Technical Committee)

I. GOVERNING CODES AND SPECIFICATIONS

o Architectural: National Building Code, BP 344

o Structural: National Structural Code of the Philippines (NSCP), American Institute of

Steel Construction (AISC), American Concrete Institute (ACI), American Iron and SteelInstitute (AISI), American Welding Society (AWS), American Society for Testing andMaterials (ASTM)

o Electrical: PEC, Fire Code (PNS Appendix G of PEC1 2000)

o Sanitary and Plumbing Works: Revised National Plumbing Code

II. ARCHITECTURAL

1. Classroom Size.o The size of the classroom for elementary and secondary schools must be

7m(width) x 9m (length)

2. Windows

o Total area of window openings must be at least equal to 10 sq. meters for

adequate ventilation and illumination.

o The windowsill must not be lower than 600 mm and higher than 900mm above the

floor level.

o The window panels must not be an obstruction along the corridor when it is

opened.

o The window must allow the entry of daylight even if it is closed.

o Window opening must be bilateral fenestration.

3. Doorso There must be two (2) doors along the corridor for every classroom.

o The swing out should be 180 degrees.

o The size of doors must be 900 mm width and 2100mm height.

o The doors must withstand the normal wear and tear and shall be provided with

lever-type door locks.

Note: This is for consultation purposes only and NOT a solicitation to bid.


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4. Flooro The floor must be non-skid finish.

o Finished floor line should be higher than the corridor by 25mm.

o Ramp must be provided with a slope of 1:12 in accordance with the Accessibility

Law (BP 344) and properly labeled.

5. Ceilingo The height from floor to ceiling must be at least 2700mm for rooms.

6. Roof o The classroom must be provided with a roof for protection from the sun and rain.

The roof shall withstand the designed wind load, live load, and the prescribed

thermal insulation value. An equivalent roofing system, which has the capacity towithstand the said loads and insulation value. (example: These shall be at least0.4mm thick (base metal) corrugated long span pre-painted GI sheets incombination with a suspended ceiling).

7. Wallso The external walls must have a thermal conductivity equivalent to that of a 150 mm

(6 inches) thick CHB wall of the standard school building.

8. Partitionso Must be from floor to ceiling.

o The sound transmission property of the wall shall be equivalent to that of a 100mm

thick CHB wall.o Add: Sound transmission of 2nd floor

9. Toiletso Toilets shall be properly ventilated.

o Please refer to Annex A

10.Chalkboardo

Classroom must be provided with a built-in-chalkboard as part of the building.o Please refer to Annex B

Note: Toxicity (roof, wall, partitions, etc.)

III. STRUCTURAL

1. The structural design must be in accordance with the revised IRR of the National BuildingCode (NBC) and the latest edition of the National Structural Code of the Philippines(NSCP 2010 Vol. 1).

a. Wind Load. Roofing and walls shall be designed to withstand the following wind



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speed:

Zone 1 = 250 kph

Zone 2 = 200 kph

Zone 3 = 150 kph

Wind Importance factor = 1.15

b. Seismic Load. The structure shall be designed to withstand the earthquakes forthe following seismic zones:

Zone 2 Palawan, Sulu and Tawi-Tawi: Seismic Zone Factor = 0.20

Zone 4 Rest of the Philippines: Seismic Zone Factor = 0.40

Seismic Importance factor = 1.50

c. Live Loads. Minimum occupancy loads shall be as follows:

Classrooms = 1.9 kpa

Corridors/stairs = 4.8 kpa

Roof = 1.0 kpa

2. Design life shall be at least 25 years.

3. Building foundation design shall be based on actual soil bearing capacity of the site.

4. All construction materials must conform to the DPWH Standard Specifications for Public

Works Structures, Volume III, 1995 (Blue Book). New materials which are not covered bythe Blue Book must pass the requirements of the Product Accreditation Schemeprescribed under DPWH Department Order No. 189, series of 2002, and be accredited bythe DPWH before they are used in the Project.

a. Reinforced Concrete(1) For structural members, minimum compressive strength of 20.7 MPa (3,000

psi).(2) For non structural members, minimum compressive strength of concrete

shall be 17 MPa (2,500 psi).(3) Reinforcing bars shall be ASTM 615 with a minimum yield strength, fy, of

275 MPa (40,000 psi) for 16mm diameter and larger, and 230 MPa (33,000psi) for 12mm diameter and smaller.

b. Structural Steel. This shall be ASTM A36 with a minimum yield strength, fy, 248MPa (36,000 psi). All structural steel works shall be painted with red oxideprimer and shall be final coated with aluminum silver paint.

5. The structure must be resistant to termites and protected from corrosion/rust up to at leastthe end of the repayment period. (rust 5 yrs, termite 2 yrs)

6. Structural component must have a 3-hour fire rating.



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IV. ELECTRICAL

a. Roughing-ins

1. Service Entranceo Service entrance conduit shall be made of intermediate metallic conduit

(IMC). Underground runs shall be encased in concrete envelop or reinforcedconcrete envelop when crossing roadway. End of conduit shall be providedwith sealing compound.

o Exposed service entrance conduit shall be painted with epoxy primer in

three (3) coats application.

o Conduit shall be properly reamed.

2. Branch circuit conduits, boxes, fittings and supports shall run parallel to walls,

columns and beams of the building.

o Metal boxes, gutters, supports and fittings shall be painted with epoxy primer

in three (3) coats prior to installation.

o Apply PVC solvent on all PVC pipe joints/connections

o Use end bells at the end of PVC pipes and locknut and bushing for metallic

conduit on all boxes and gutters termination.

o Branch circuit conduits shall be either metallic or non-metallic conduit where

it is applicable.

3. For ceiling mounted lighting fixtures

o Use flexible metallic tubing as drop pipe from junction box to lighting fixture.

4. In-sight disconnecting means

o Use water tight type straight or angle connectors from pumps, condensing

units and other equipment that with possible contact with water or rain.

5. Centralized paneling

o Use breaker and wire gutter for proper arrangement of main distribution

panel (MDP).

6. Provide 15 mm PVC or IMC pipe as stub-out conduit for spares at differentpanel boards as per schedule of loads. Ends of said stub-out conduit shall bethreaded and capped.

b. Wires and Wiring Devices

o Wires shall be properly designed in accordance to Article 3.10 and for grounding



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system Article 2.50 of the latest edition of PEC Part 1, Vol. I.

o Wiring devices must be of standard type and approved for both location and

purpose.

c. Lighting and Fixtures

o Classroom must be provided with the minimum 250 lux requirement, e.g. at

least 4 units 2 - 40 watts fluorescent lighting fixture for the room.

o Duplex convenience outlet (CO) of grounding type must be provided on each

sides of the classroom.

o The corridor must be provided with a lighting product that can produce 5,000

lumens, e.g., 1 unit of 2 40-watt-flourescent lamp or 1 18-watt CFL or LED.

V. SANITARY/PLUMBING WORKS

1. Waste and vent line piping system

o Drain, waste and vent system must be according to (Philippine National Standards)

PNS/SAO 374, American Society for Testing and Materials (ASTM) D-2729,International Standard Organization (ISO) 4435 and International StandardOrganization (ISO) 3633.

2. Waterline piping systemo Must be according to ISO9001:2000 and E DIN1988 for Polypropylene Random

(PPR) type 3 pipe and American Society for Testing and Materials (ASTM) A120.

3. Plumbing Fixture

o Must be according to American National Standard Institute/ American Society of

Mechanical Engineers (ANSI/ASME), WWP-541, A112.19.4m, A112.19.3, IS2,A112.19.5, A112.19m

4. Drainage system

o Storm drainage system must be sized according to rainfall intensities, slope, and

roof areas of the building.

5. Septic vault

o All concrete septic tanks shall be protected from corrosion by coating with an

approved bituminous coating or by other acceptable means.

VI. FURNITURE

1. For every classroom, the following shall be included:



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a. One set of teachers table and chair

b. 45 armchairs (43 for right-handed; 2 for left-handed)

2. The type of materials to be used may be wood or non-wood based as per DepEdsstandards.

3. Please refer to Annex C for furniture dimensions and specifications

VII. SPECIAL REQUIREMENTS

1. For those schools with abnormal site conditions as determined by DepEd, the proponentshall include special designs and corresponding costs in their proposals.

2. Architectural and Engineering design plans must be signed and sealed by licensedFilipino professionals.

3. Certification from the proponent that the building components must be made available toDepEd within the repayment period.

VIII. WARRANTY

The Contractor shall guarantee the completed structure against structural andfunctional defects and failures vis--vis the prescribed performance specifications for aperiod of fifteen (15) years, except for defects and failures occasioned by forcemajeure and those caused by third parties.


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Standard Classroom Siza