Handling, Transportation, Stockpiling and Application Conditions

Handling, Transportation, Stockpiling and Application Conditions

Ünal Ümit Cam İnş. San. Ve Tic. Ltd. Şti. (“Ümit Cam"), you should pay close attention to the following points about the production, stocking and application of our glass products you have purchased.

Our products are manufactured in accordance with the national and international standards listed below.

• • TS EN 572: Float Glass
  • TS EN 1096: Coated Glasses
  • TS 3539 EN 1279: Double Glazing Units
  • TS EN 12150: Fully Tempered Glasses
  • TS EN 1863: Partially Tempered Glasses
  • TS EN 14449: Laminated Glass

All advertisement applications will be evaluated within the scope of these standards.

I. Laminated Glass:

• It is the responsibility of the applicator to ensure that the edges of the laminated glass and/or the perimeters of the holes, if any, and the edges of the details are sealed with silicone and similar materials compatible with PVB or similar interlayers used in the production of laminated glass.
• The glass that makes up laminated glass (perforated, cnc engraved, etc.) can be tempered or partially tempered for static reasons. However, in glass railings and similar applications, tempered laminated glass is not suitable for use because it creates a blanket effect at the moment of breakage and discharges the system. In such applications, it is recommended to use partially tempered laminated glass or extra strong PVB etc. products.
• Since there is a risk of thermal breakage in laminated glass that is not tempered or partially tempered, the risk is reduced by having the edge of such glass polished to a high gloss.
• Joinery systems where laminated glass is installed must be designed to protect the glass from structural movements such as beam deflections and dilatation shifts.

Damages such as lamination deterioration, thermal glass breakage, etc. that may occur due to similar situations mentioned above are not under the responsibility of Ümit Cam.

II. Tempered Glass :

• After tempering, the glass cannot be cut, drilled, edged or surface treated (except sandblasting).
• The inevitable and unavoidable consequences of heat treatment are "tempering marks", which are only noticeable under certain viewing angles and lighting conditions, and image distortions, which occur within the tolerances of "optical distortions".
• Depending on the application area of the glass, the height of the glass should be specified at the order stage and the temper feed should be produced within the limits of feasibility considering this height.
• For all tempered glass ordered, the direction of the tempering shot and the placement of the glass on the temper rolls must be specified with a drawing. Unless a drawing is provided, the tempering process will be carried out in the direction that Ümit Cam deems appropriate.
• Temper Wave; During the tempering process, surface distortions known as roller waves occur when the glass is in contact with the rollers. These distortions are the physical results of the production technique and cannot be prevented. The marks are more pronounced in glasses with high reflectivity.
• Point or linear defects on the tempered or partially tempered glass surface are examined by observing from a distance of 3 meters, vertically, in the shade in sunny weather (without direct light on the glass).
• Air marks (anisotropy) are formed in tempered glass due to the internal stress distribution in the glass. It is not possible to prevent the dark circles seen in polarized light and perceived depending on the viewing angle.
• Due to the microscopic Nickel Sulphide particles that may be present in the glass, there is a possibility of sudden breakage in fully tempered glass. In order to reduce this risk, fully tempered glasses can be subjected to a pre-screening by heat soak test. Although this test cannot completely eliminate the risk of sudden breakage, it greatly reduces it. If a heat bath test is requested for fully tempered glass, it must be specified at the order stage. In addition, orders for which heat treatment is not requested are accepted without heat treatment.
• Tempered Glass "TS EN 12150, Partial tempered glass is produced in accordance with TS EN 1863 Glass standard.

Umit Cam Cam is not responsible for glass deterioration and damages that may occur due to similar situations mentioned above.

III. Enamel Painted Glasses :

• Unless otherwise specified, enamel painted glasses are produced to cover spandrel areas with closed backs that do not leak light. If the back of the glass is open and receives daylight, it is obligatory to specify before ordering or bidding.
• Painted glass (silk, digital or roll) is produced according to our factory production standards. For details on this subject, it is necessary to be agreed at the order stage.
• When light colored enamel printed glasses are mounted to any unit with silicone and similar materials, shadowing may occur in the glass image. At the same time, color and tone differences may occur between small size and large size in light enamel printed glasses. This is not a production defect, but a requirement of the heat treatment (temper) process. You can consult our customer representatives about the light colors that may be mentioned.
• The technical feasibility of edge painting processes on soft coated and other glasses should be determined prior to ordering.

Our company is not responsible for image distortions that may occur due to these and similar situations and point openings that can transmit light.

IV. Insulating Glass :

Curtain wall design, design details and application are not the responsibility of Ümit Cam. Our company is responsible for producing in accordance with the size, thickness, glass combinations and technical drawings given to it. Application responsibility belongs to the buyer.

• Insulating glass units should not be stored in direct sunlight. Each glass heated by the effect of heat can cause breakage by compressing the other due to swelling. There is also a risk of thermal breakage due to insufficient ventilation between colored or reflective glass stocked under the sun.
• If polysulfide or polyurethane is used as the outer insulating material, these insulating glasses should never be stored in the open (in the sun). Such improper storage will cause the outer insulating material to separate easily from the glass and cause the insulating glass to deteriorate in a short time.
• The joints of insulating glass productions with joinery should be protected from wetness. The water drainage hole in the joinery should be checked.
• In order to prevent damage to the external sealing materials in insulating glass, direct contact of the glass with the joinery or screws should be prevented.
• The applications to be made on the exterior of the building should be done before the glass application.
• The negative consequences of applications such as dark colored curtains, roller blinds and stickers that may cause heating and cooling of the glasses you have purchased should be shared with the end consumer. Such applications may cause glass breakage that may cause expansion due to regional heating in the glass.
• Mounting materials (structural silicone, sealing silicone, etc.) used during the application of insulating glass units and in contact with insulating glass units may in some cases react chemically with primary (butyl) secondary sealants (polysulfide, polyurethane, insulating glass sealant silicone) used in insulating glass production and cause deterioration in insulating glass production. This is often referred to as "butyl bleed".
• The materials to be used in insulating glass application (wicks, structural silicones, sealing silicones, joint filling silicones, adhesives, etc.) are suitable materials that do not contain acidic solvents and these materials must not have expired.
• Applicator companies are required to conduct compatibility tests of their materials to be used in insulating glass application (wicks, structural silicones, sealing silicones, joint filling silicones, etc.) with the external insulation paste (polysulfide, polyurethane, silicone) used in insulating glass production. They must also submit reports on this subject when requested. The company that will make the application is responsible for the damages that may occur if appropriate materials are not used and for the deterioration of the insulating glass unit. It is not under the responsibility of Ümit Cam.
• In cases where the sealants on the edges of insulating glass units may be exposed to direct sunlight, "silicone sealant" should be used as an external sealing material. The customer should request the use of silicone sealant as they are familiar with the application of the glass.
• Colored and reflective coated glass used in insulating glass units must be tempered. If the edges of the glass are damaged during application (or if high pressure is created on the edges of the glass), the glass may break due to thermal expansion during use.
• At the order stage, the customer must specify the altitude at which the application will be made and the highest altitude at which the glass will be transported. According to this information, our company will apply pressure equalization to the insulating glass. The details of the application in the glasses to be pressure balanced are notified to the buyer company in writing, the buyer company is responsible for the application.
• Insulating glass units with special lath systems (u profile, economic lath, etc.) other than aluminum profile lath, warm edge lath used in the insulating glass unit are not covered by the warranty.
• All soft-coated glass used in insulating glass units are edge-stripped. Color difference and linear marks may occur after the edge stripping process. This is not a production defect but a process necessity. Edge stripping is limited to a minimum of 12mm and a maximum of 36mm. For your requests that may be above, the sample to be made at the order stage should be agreed upon. If approval is not obtained on the witness sample, Umit Cam standards apply.

Other issues that may cause insulated glass to deteriorate;

• Damage to the external sealing materials in the insulating glass unit for any reason.
• Insulating glass, subsequent intervention to the glass size.
• Repair of insulating glass on site.
• Insulating glass with polysulfide and polyurethane outer insulating paste should be stored away from sun and/or rain. Our company is not responsible for errors caused by storage conditions.
• Purchased products must be checked during delivery. Our company does not accept responsibility for external scratches and stains, fractures, burrs and flakes on the edges, defects that may occur due to wetting of the glasses and are not under the responsibility of our company.
• Installation of glass with damaged edges or heavily burred glass should be avoided.

Wedging rules for the installation of insulating glass should be as follows.

• The supporting wedges are placed one wedge length in from the corners of the unit. The length of the wedges should be 80 - 100 mm on average and their width should be 2 mm more than the thickness of the insulating glass in order to support both of the unit glasses.
  
• The back of the units should be leaned against the pallet and point loadings should be avoided. Swelling may occur due to pressure changes and breakage may occur as a result of 2-3 times force loading. Stacking of glasses should not be done directly on concrete or earthen ground; in wet and damp places.
• Palletized or crated products should not be stored outdoors. They should be stored in a closed environment with suitable humidity and temperature conditions. For ideal storage, a temperature of 9-25˚ C and humidity below 70% is recommended. Palletized or crated glass should be protected from water such as rain and snow that can cause it to get wet. The risk of corrosion of wet glass in stock is high. For this reason, if the glass gets wet due to condensation or in any other way, it should be cleaned before it dries.