PROJECT: NEW QUITO INTERNATIONAL AIRPORTISSUED BY: SURGE INGENIERIACONTRACT #: 052SCOPE: PTB CURTAIN WALL, METAL SIDING AND EXTERIOR DOOR SYSTEMSSUBMISSION DATE: 12/094/2012LOCATION: PTB

PRODUCT: GLASSSUBMISSION:PRODUCT SPECIFICATION REFERENCE NUMBER:PRODUCT SPECIFICATION REFERENCE TITLE: LAMINATED FOREST GREEN GLASSPRODUCT SPECIFICATION ITEMS NUMBER:ISSUED FOR: REVIEW AND APPROVAL

PRODUCT MANUFACTURER NAME: FAIRISPRODUCT MANUFACTURER ADDRESS:PRODUCT MANUFACTURER TELEPHONE: (593)-3-2520842PRODUCT MANUFACTURER CONTACT NAME: Jorge Luis Jaramillo

SUBMISSION ACCEPTED:SUBMISSION ACCEPTED AS NOTED:SUBMISSION NOT ACCEPTED:

REVIEWED BY:DATE:

ADDITIONAL COMMENTS

OBSERVATIONS

CONSULTANT REVIEW

GLASS MAINTENANCE MANUAL (ENGLISH AND SPANISH)

STANDARDS REQUIREMENTS

DEVIATIONS FROM TECHNICAL SPECIFICATIONS

DESIGNED PRODUCT INFORMATION

PRODUCT MANUFACTURER INFORMATION

Verde Loma 02-98 y Quispicacha, Ambato, Ecuador

PRODUCT CHARACTERISTICS

SHOP DRAWINGS, PRODUCT DATA & SAMPLE SUBMISSIONS

NQIA-OMSRG-PTB33-001

REVISION0

PÁG N°1

GLASS MAINTENANCE MANUAL (ENGLISH AND SPANISH)

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GlassCleaning and Maintenance Guide

Estructuras de Aluminio S.A. - ESTRUSA2

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Th is guide outlines safe, practical methods, equipment and materials applicable for cleaning and for subsequent periodic maintance of glass.

Th is information is intended as a guide for architects, owners, buliding managers, contractors and others in the building industry who are interested in the proper care and maintenance of glass.

Scope

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GlassGlassGeneralGlassGlass is an amorphous (non-crystalline) solid material. Glasses are typically brittle and optically transparent.

Th e most familiar type of glass, used for centuries in windows is composed of about 75% silica (SiO2) plusNa2O, CaO, and several minor additives.

Laminated GlassLaminated glass is a type of safety glass that holds together when shattered. In the event of breaking, it is held in place by an interlayer, typically of polyvinyl butyral (PVB), between its two or more layers of glass. Th e interlayer keeps the layers of glass bonded even when broken, and its high strength prevents the glass from breaking up into large sharp pieces. Th is produces a characteristic “spider web” cracking pattern when the impact is not enough to completely pierce the glass.

Laminated glass is normally used when there is a possibility of human impact or where the glass could fall if shattered. Laminated glass is oft en used in exterior storefronts, curtain walls and windows. Th e PVB interlayer also gives the glass a much higher sound insulation rating, due to the damping eff ect, and also blocks 99% of incoming UV radiation.

Double Glazed GlassDouble glazing is the glazing process in which a window is formed by two panes of glass with a space between the panes. Th e space between the glass is usually several millimeters thick. Air is trapped between the panes of glass and forms a layer of insulation. Before the unit is sealed, a drying agent is added to ensure that no moisture is present inside the fi nished glass unit.

Th e double glazing unit must be airtight. If condensation appears between the panes, it indicates that the window is not airtight. Double glazing windows cannot be repaired; if condensation appears, the unit must be replaced.

Cleaning ProceduresIf consistency and long-term stability are important, proper cleaning procedures must be employed. With proper care, glass should remain stable and in good working condition for many years.

Inspection

To inspect a glass for the presence of lint or dust, illuminate the surface with a diff use light source. (Refl ected northern daylight works well for this. An illuminated magnifi er (ring lamp) can also be useful.) Look the optical surface at several angles to minimize surface glare.

Contamination

Dust, dirt, skin oils, grease, and fi lms of aerosols (from unfi ltered air or commercial cleaners) alter the refl ectance properties of glass. Th ese changes usually can be reversed using appropriate cleaning techniques.

Cleaning

1. Clean the soiled standard with a fresh absorbent, non-abrasive wiper moistened with a few drops of isopropyl alcohol. Wipe the surface gently in a single path using a circular motion. (Do not use a scrubbing motion. Any abrasive grit

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adhering to the wiper may permanently scratch the surface.)2. Remove excess alcohol using a fresh, dry wiper and inspect the standard. If you observe smears, streaks, or fi ngerprints,

clean the standard with liquid detergent.3. Remove water spots with a fresh non-abrasive wiper moistened with one drop of dilute distilled white vinegar.

Immediately rinse the cleaned surface with distilled water. Remove excess moisture with a fresh wiper, and proceed immediately to the alcohol cleaning procedure that is described above.

Th ere is also another way to clean the glass, explained below:

1. To clean the glass, rinse the surface with fresh water to remove as much as possible of contaminants.2. With the glass surface very wet, wipe with a squeegee from top to bottom by removing excess water. 3. Dirty and glazing compounds can be removed before wiping gently with a soft cloth, free of grains and isopropyl

alcohol. 4. Wash the glass with warm water, a wiper free of grains and a solution that is not abrasive or alkaline, or detergent

applied by spray. 5. Rinse well and dry the glass with a clean, soft cloth free of sand or squeegee.

Cleaning PrecautionsGlass is vulnerable to scratching by abrasives, including kitchen/bathroom cleansers. Any scratching or abrasion of the glazed or polished optical surface causes permanent damage and ruins the standard. To avoid this, keep your work area free from grit and dirt such as household dust or cement dust, and use only the materials and procedures recommended for cleaning. Never clean glass using ordinary paper, cloth, or commercial cleaners.

It is imperative that glass surfaces are cleaned on a regular basis to stop water staining. Water carrying atmospheric contamination will leave permanent marks on the glass surfaces if left un-cleaned for long periods.

Do not under any circumstances use any form of abrasive cleaner (alkaline solutions) as this may cause damage to the glass.

We recommend a regular cleaning routine for the life of glass products. All glass surfaces should be cleaned at least once every 3 months.

Scratched Glass Acids, alkalis, chemicals, solvents or their vapors, abrasive or sharp objects, or dirt cloth should never be used to clean the glass.

CondensationWater vapour is continually present in the atmosphere. Th e water vapour remains undetectable while fl oating in warm air, but upon contact with cold surfaces: windows, mirrors, tiles etc., condensation occurs and the vapour turns to water droplets. To avoid this you should ventilate the area where the glass is.

VentilationProvide natural ventilation whenever possible by:• Opening a window • Fitting a ventilator. • Fitting wall vents to provide air fl ow.

Heating• Maintain some permanent heat in the area during cold weather. Marginally increase the temperature in areas where

condensation is a particular problem.

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