FOI 200 Shade World - REDACTED-Mackin

8/2/2019 FOI 200 Shade World - REDACTED-Mackin

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Obtained by Bob Mackin via Freedom of Information

[email protected]

twitter.com/bobmackin



February 11, 2011

Mr. Martijn lunneker

Project Manager

PCl Constructors Westcoast Inc.Suite 31013911 Wireless WayRichmond, BC V6V 3B9

Re: BC Place - Phase 2 - Roof Replacem entSubj: Cable Grease

Dear Martijn,

We received the information for the cable grease transmitted in your email of 11-23-10 as well as

the test results from NTB in your 1-17-11 email and forwarded all data to Saint Gobain. Both SaintGobain and ourselves reviewed the information and have concluded the following to date

•

• We applied some grease to both the SF I and Fabrasorb fabrics and have concluded thatthe grease will most likely permanently stain the both the outer and I ner fabrics.

o Photo 1 is ofthe samples with the grease applied for a period of 5 days, note youcan see the grease stain wicking into the porous Fabrasorb fabric.

o Photos 2 and 3 are of the fabr ic after it was cleaned with water.

o Photo 4 is of the unbleached SF I fabric after it was cleaned with the recommendedcleaning soap (Murphy's Oil Soap). The dark stain indicates the fabric ispermanently stained. We are bleaching the fabric under UV exposure to get a better

sense of the darkening resultant of the staining.

8stANOS VO I J KNOW yOU TRUST

VI \1/ \I I • usa· & h a d e . com



Thank you for your attention to this matter, we await your further instruction.

Sincerely,

Bill SchmidtProject ExecutiveShade Worldwide, Inc. branded as FabriTec Structures

Cc: lorne Ebenal, PCl

Martin Brown, SWIChris Carraher, SWI

)psBRANOS Y O U KNOW YO U TRUST

V /WW uS41-shade.com



January 26, 2011

Bill Schmidt

PERFORMANCEPLASTICS

USA Shade & Fabric Structures, Inc8505 ChancellorRowDallas, TX 75247

Re: Oil Elaskon SK-A

Deal' Bill:

Very truly yours,

Marcel DeryMarket Manager - Architectural

SHEERFILL and FABRASORB are registered trademarks ofSaint-Gobain PerformancePlastics Corp.



REV

BC STADIUM ROOF PROJECT

INSPECTION REPORT

LEAKING STATUS OF NETCABLES

INSPECTION REPORTLEAKING STATUS OF NET CABLES

-

Rev September 9th

2011

PageJI14



REV

I --

BC STADIUM ROOF PROJECTINSPECTION REPORT

LEAKING STATUS OFNET CABLES

CONTENTS

INTRODUCTION

1 CORRECnVEACnONPERFORMED

1.1 INITIAL STATUS

1.2 NODE I UPPER CABLE

1.3 UPPER CABLE

1.4 LOWER CABLE I lET TO CLAMP 14

1.5 LOWER CABLE I MAST TO lET

2 FURTHER ACTIONS

2.1 GUTTERS2.1.1 Lower cable at mast location2.1.2 Cleaning frequency

3 MAINTENANCE

3.1 CABLE PICTURE MAP

3.2 MAINTENANCE PROGRAM3.2.1 Lower cables from clamp 1 to node3.2.2 Gutters and trays3.2.3 Upper Gutters removal

4 INSPECTIONAND CLEANING CREW

4.1 CONTACT PERSON

5 APPENDIX

3

3

3

4

5

5

5

6

66

7

11

11

11

11

12

13

13

13

14

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-

INTRODUCTION


INSPECTION REPORT


The full locked cables supplied by our company tend to release some lubricant.This lubricant is used to conserve the interior steel wires of the cable in order toprotect them against corrosion.

Since two months, the leaking rate tends to decrease, even if, some randomlocation are still releasing some lubricant.

1 CORRECTIVE ACTION PERFORMED

1.1 INITIAL STATUS

Since the beginning of the leaking issue, the status of each cable and the dateof successive cleaning have been recorded.Based on these data, each cable have been given a note reflecting theirtendency to leak.The hypothesis was that if a cable is cleaned many times, it means that it isleaking the most. It is not perfectly accurate as some radials (especially radials8, 9 and 10) have been dealed with more often due to first installation of fixedand retractable membranes to avoid drop hits on the first panels. However, dueto the extensive cleaning and number of data recorded, the note reflect correctly

the tendency.

The note has been ponderated, based on the cleaning/ protection method used.For instance, the upper cables have an higher note as they had to be wrappedin absorbent pad which was not the case for the lowers. Equivalent ponderationhave been applied to sockets area and lower points (mast, node).

The highest the note is, the more, the related cable was leaking.Since the end of July most of the cable stop to leak and / or decreased theirleaking rate. Except at specific and isolated area, they are now quitehomogenous. Then the graph below shall be considered as a initial leakingstatus illustration only and not current behaviour:

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29

28 i--+-- t - - - t - t i

27


INSPECTION REPORT


1

19

9

10

11

During the cleaning period, some corrective actions have been implemented in

order to contain the drops or to avoid that the accumulating drops fall off thecable. These actions are described below.

1.2 NODE I UPPER CABLE

• At the node area some trays have been installed below the socket tocollect lubricant.

• On the upper top and upper bottom cables some gutters have beeninstalled to collect lubricant.

Those area are then secured and the retractable membrane is protected fromlubricant drop while folded in garage.

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1.3 UPPER CABLE


INSPECTION REPORT


• All the upper top and upper bottom cable have been equipped withgutters

Those area are then secured. However some clamps (less than 0,1%) still needsome action. The caulking needs to be reinforced to ensure a 100% sealing.This is monitored on a dai ly basis by our team, in order to identify any default.

The first heavy rains that occurred after gutter installation showed the goodbehaviour and efficiency of drainage system.

1.4 LOWER CABLE I lET TO CLAMP 14

This area is, so far, the best in term of leaking. Very few spot has been noticedduring these last 50 days. It is noticeable that the summer months have beenquite warm (21'C average) and sunny (which bring th e cable outer skintemperature to 40'C) and didn't impact the overall leaking rate.Furthermore, during the pouring of the Field of Play concrete slab, no dropshave been noticed on the whole area.

An overall cleaning is currently performed not as a necessity but as a part of amaintenance program. The target being to keep all the cables dry and clean.It is likely that these area, less loaded than the other part of the cables, willremain dry in a short future.

1.S LOWER CABLE I MAST TO lET

This area tends to improve significantly, in the last 2 months. Few cleaningoperation has been required even if some random location are still leaking.Especially the socket area and the first meter of cable. Most of the extralubricant is accumulating by gravity at these lower points and then induce moreoozing.Randomly, some other area may leak at a lower level up to significant level. It isoften where the cable is most loaded (i.e. catwalk) or during the tensioning of

fixed membrane connection point.

An overall cleaning is currently performed by our team before the closing of themembrane.

We have the option in continuing a cleaning maintenance on those area, inorder to avoid punctual drops on the bleachers underneath.

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INSPECTION REPORT


This solution should be satisfactory based on last observation of average

leaking rate of the cables.

2 FURTHER ACTIONS

2.1 GUTTERS

2.1.1 Lower cable at mast location

As it has been observed that the lower cable continue to leak on the lower cableconnection to the mast, we will installed some gutters.These gutters will run from the bottom of the sockets to the sealing clamp of

fixed membrane.This gutters will avoid the lubricant to fall in the main drainage gutter.

They will be installed after completion of membrane trade activity, in order toavoid any damage on them.

A mock-up have been performed to illustrate the shape of this gutter. Thematerial and principle is identical to initial lower gutter plan.

See below pictures of mock-up:

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INSPECTION REPORT


2.1.2 Cleaning frequency

The cleaning frequency has been recorded since the beginning of the leakingissue.In average, all cables have been cleaned 10 times: minimum 5 times, maximum16 times according to the behaviour of the cable. This extensive cleaningallowed to remove most of the extra lubricant. However, some area, such as themost loaded part of cables, the clamps and the lowest point, keep leaking atlower rate. Some random area are also noticed and are the most difficult tomonitor.

The last months, even though the hottest in term of temperature, the deaningwas not necessary for most of the cable.

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INSPECTION REPORT


Below are some graphs showing the number of day spent since the last

cleaning. During this period, almost no drops have been noticed in the relatedarea:

1

29

28 t--+--t--t---+--t-+-t--t£

27

19

9

11

- Last cleaning from today on lowerclamp 10 to 14

This area is located above the retractable membrane.In average 47 days time frame virtually free of drops have been recorded.

At the end of this period, few area shows some oozing stains but with no risk toaccumulate in a drop.

The area is currently cleaned as per our maintenance program

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INSPECTION REPORT

LEAKING STATUS OF NET CABLES

1

19

- last cleaning from today on

lower from clamp 1 to 10

This area is located below the fixed membrane.In average 34 days time frame virtually free of drops have been recordedexcept at very specific location.This area is more sensitive during construction period due to change in loadingof the cable: adding of punctual weight, anchor point fixed on the cables,stressing of the fixed membrane with ratchet strap, ...

The area is currently cleaned as per our maintenance program

!

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INSPECTION REPORT


1

19

- Last cleaning from today on lowermast to clamp1

This area is located from the socket fixed to the mast to the first clamp of

membrane edge fixation.In average 14 days time frame virtually free of drops have been recordedexcept at very specific location.This area remain a significant leaking source. Indeed, being situated at thelower point, all the extra lubricant within the cable tends to accumulate there.

The area will be equipped with lower gutters at completion of membrane tradesactivity to avoid damage on them.As a temporary measure, the end of the sockets is wrapped in an absorbentpad.

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3 MAINTENANCE


INSPECTION REPORT


3.1 CABLE PICTURE MAP

In order to illustrate the current status of lower cables during this month "free ofcleaning" a picture map has been made as follow:

• All lower cable length from mast to lET pictures taken from the top

• All lower cable length from lET to clamp 5 pictures taken from the bottom

It appeared to be not relevant to take picture from the bottom between mast toclamp 5. Indeed the quality of pictures taken from the bleachers (extenSive

zoom) and face to high light exposure, is very poor. Furthermore, the status of

this area is totally similar to the other ones.

This map is located in appendix.

3.2 MAINTENANCE PROGRAM

Starting September 13th, 2011 up to September 27th

, 2011, a daily inspectionwill be conducted by a Geobrugg Inspector, in order to optimize the finalintensive cleaning before the completion of membrane installation.The interest of these daily inspection is:

• Identify accurately the potential leaking area to make easier thescheduled maintenance program

• Optimize the remaining period where access to lowers is easier

In a second step, we schedule an inspection and maintenance program for thefollowing months until the leaking issue definitely cease.

3.2.1 Lower cables from clamp 1 to node

Cycle I:

Inspection once every two weeks-+ If no leaking issue noticed, schedule a new inspection 2 weeks

after-+ If leaking issue is noticed, plan immediate cleaning and schedule

a new inspection 1 week after

The passage from cycle I to II will be based on 2 inspections without leakingnoticed.

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- Cycle II:


LEAKING STATUS OF NETCABLES

Inspection once every four weeks-+ If no leaking issue noticed, schedule a new inspection 4 weeksafter

-+ If leaking issue is noticed, plan immediate deaning and return tocycle I

The passage from cycle II to III will be based on 2 inspections without leakingnoticed.In case of 2 successive inspections with leaking noticed, restart the cycle I.

Cycle III:Inspection once every 2 months

-+ If no leaking issue noticed, schedule a new inspection 2 month

after-+ If leaking issue is noticed, plan immediate cleaning and schedulea new inspection 1 months after

-+ After 2 inspections without leaking, end of the cycle IIIIn case of 2 successive inspections with leaking noticed, restart the cycle II.

3.2.2 Gutters and trays

Cycle I:Inspection once every month

-+ If no leaking issue noticed, schedule a new inspection 4 weeksafter

-+ If leaking issue is noticed, plan immediate reparation and

schedule a new inspection 2 weeks afterThe passage from cycle I to II will be based on 2 inspections without reparationrequired.

Cycle II:Inspection once every 2 months

-+ If no leaking issue noticed, schedule a new inspection 2 monthsafter

-+ If leaking issue is noticed, plan immediate reparation and return tocycle II

The passage from cycle II to III will be based on 2 inspections withoutreparation required.In case of 2 successive inspections with reparation required, restart the cycle I.

Cycle III:Inspection once every 6 months

-+ If no leaking issue noticed, schedule a new inspection 6 monthsafter

-+ If leaking issue is noticed, plan immediate reparation andschedule a new inspection 3 months after

PageJ2IU



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INSPECTION REPORT

LEAKING STATUS OFNETCABLES

-+ After 2 inspections without leaking notice, end of the cycle III

3.2.3 Upper Gutters removal

At this stage, it is not possible to determine accurately the most relevant periodto remove the gutters.However, a removal of gutters after a period of 2 years can be used as areference (end ofthe cycle III)After removal of gutters a final extensive cleaning will be performed on theconcerned area to remove lubricant stains.

One month after completion of upper gutter removal a final inspection of uppercables will be conducted to confirm that the cables remain dry.

4 INSPECTION AND CLEANING CREW

The inspection will be conducted by one person.His role will be to fill up the inspection record sheet.On these record sheets will be indicated the leaking area. A short report will beadded to the record form to define the severity of the leaking, if any, and theaverage behaviour of cables.

The cleaning team will be composed of rope access workers able to work onthe cables:

• Access to lower cable from mast to clamp 1: from top facade beam withfall arrest protection

• Access to lower cables from clamp 1 to clamp 7: rope access whilewalking on the liner from the catwalk

• Access to lower cable from clamp 7 to 10: rope access from underneaththe cable

• Access to lower cable from clamp 10 to node: rope access, walking onthe cable

• Access to upper cables: from the node and then fall arrest protection

The amount of crew will be adapted according to volume of work to perform.The cleaning intervention will be done on day shift basis during the standardweek working days.The number of workers mobilized shall be sufficient to complete the cleaning onmaximum 3 days time.

The scheduled cleaning days shall be in accordance with Owner program.

4.1 CONTACT PERSON

A contact person is designated by Geobrugg to manage the coordination of themaintenance and cleaning operation. He can be contacted by the Owner andwill organize necessary actions:

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LEAKING STATUS OF NET CABLES

Franz SPICHTIG

Rigging SpecialtiesA Division of E.V.A.S. Trading Co. Ltd.

P.O. Box 2705T1L1C4,Canada

E-mail: [email protected]: (403) 762-2509Fax: (403) 762-3718Cell: (403) 763-8863

5 APPENDIX

• Picture map of lower cables

• Inspection record form

Daniel Schlesier Markus ZurcherManager ProcesS&Production Business Unit Manager PCREngineering I aM

Geobrugg Architectural

Fatzer AG, Wire Rope Division

Salmsacherstr. 9 Salmsacherstr.

Rope

9CH-8590 Romanshom, Switzerland CH-8590 Romanshom, Switzerland

Page 14114



Date :"__-----Inspected 'rt/ "----cable net lrispectad :

t.ower cableS 0

Upper cableS 0

R31

R27

R24

R33

R21

Instruction: hlghight the area needed acleaning or repair

R01 R02

R20RIg

R18

R03

Inspection from: 0

Facade 0

catwalk 0

lET 0

RO& Central node 0

R13

R14

R15

R16

Rl1



CLEANING RECOMMENDATIONS

SEFAReArchitecture TENARAe Fabric is 100% fluoropolymer and is naturally dirt-repellent. However,additional cleaning procedures can be employed to remove stubborn dirt or stains.

Overall CleaningIn general, most contaminants such as dust and dirt can be cleaned with water. If water proves insufficient toclean the fabric, an ammonia or detergent solution can be used, along with a soft brush and a gentle cleaning

action. It should not be necessary to aggressively "scrub" the fabric to remove dirt! stains. If desired, chlorine

bleach solutions can also be used in any concentration without affecting the fabric. "Pressure washers" shouldnot be used, as their extremely high pressure could damage the fabric.

Spot CleaningFirst wipe the discoloration off with a clean damp rag by rubbing gently. If this fails to remove the discoloration,apply a liberal amount of cleaning solution (as recommended below) to a clean rag and rub the fabric gently.Use a final water rinse, and allow the fabric to air dry. If desired, dry fabric with a clean rag. This shouldremove most dirt spots.

Note: Ammonia and detergents are recommended cleaning agents to try BEFORE isopropyl alcohol, as alcoholwill tend to dissolve the contaminant and could cause it to be absorbed into the top fabric layer.

Cleaning Agents to AvoidSolvents are NOT recommended and should not be used, as they may adversely affect the stain by helpingto "set it" into the fabric. Examples include: Ketones, acetone and methylene chloride, paint removers, ovencleaners, or dry cleaning solutions. Abrasive cleaning agents or implements should NOT be used as they could

damage the fabric surface.

Common "Stains'" and Recommended Cleaning Agents- Amino AcidslNatural fats: Ammonia based products, detergents.- Common dirt, grease, ink, etc.: Detergents, Isopropyl alcohol.- Bleach solutions do not affect SEFARe Architecture TENARAe Fabrics and can be safely used without affecting

the performance of the fabric.

Note: Cleaning agents should be used with care, and if possible tested on a hidden section for adver.se

affects. Of cour.se appropriate per.sonal protective equipment should be used as recommended by thecleaning manufacturer.

SefarAG

Architecture SolutionsHinterbissaustrasse 129410 HeidenSwitzerland

Phone +41 (0)71 8985104

Fax +41 (0)71 8985871infoOsefararchitecture.comwww.sefar.comwww.tenarafabrics.com

Documents

FOI 200 Shade World - REDACTED-Mackin