ASSESSMENT FOR PRIORITIZATION OF WINDOW REPLACEMENT AND INSTALLATION OF AIR-CONDITIONING SYSTEMS

Transcription

1 ASSESSMENT FOR PRIORITIZATION OF WINDOW REPLACEMENT AND INSTALLATION OF AIR-CONDITIONING SYSTEMS (Addendum to Risk Assessment Phase II report dated April 21, 2017) JOHN FISHER PUBLIC SCHOOL Presented to: Toronto District School Board Presented by: ECOH Management Inc. ECOH Project No: May 11, 2017

2 TABLE OF CONTENTS 1. INTRODUCTION METHODOLOGY OBSERVATIONS RECOMMENDATIONS STATEMENT OF LIMITATIONS... 4 APPENDIX I APPENDIX II SITE PHOTOGRAPHS DRAWINGS ECOH

3 PRIORITIZATION OF WINDOW REPLACEMENT AND INSTALLATION OF AIR-CONDITIONING SYSTEMS TORONTO DISTRICT SCHOOL BOARD JOHN FISHER PUBLIC SCHOOL ECOH PROJECT NO MAY INTRODUCTION ECOH Management Inc. (ECOH) was retained by the Toronto District School Board to conduct an assessment at John Fisher Public School for the purposes of particularizing and prioritizing of window replacement and installation of air-conditioning systems at the school as recommended by ECOH in the Phase II Risk Assessment Report, dated April 21, Mr. Rob Fernandes and Ms. Seema Sharma of ECOH completed the assessment of the subject on May 9, This report summarizes the findings of the assessment and associated recommendations. Site photographs are provided in Appendix I. Drawings indicating the prioritization of the window replacement are provided in Appendix II. 2. METHODOLOGY The prioritization of the window replacement took into consideration the design, condition and location (i.e. proximity to construction, room usage, etc.) of the windows and how these factors would influence the potential for noise and dust infiltration associated with the construction project that is to be completed to the west of the school property. For the installation of airconditioning systems, the prioritization took into consideration the likelihood of utilizing windows for ventilation with respect to the potential for noise and dust infiltration associated with the construction project. Based on the aforementioned factors, ECOH has proposed three categories for prioritization of the window replacement and installation of air-conditioning systems as follows: Category 1: The windows in these locations are at greatest risk for noise and dust infiltration and should be replaced prior to commencement of the adjacent construction project. As these locations are also in closest proximity to the construction area, the windows will not likely be used for ventilation purposes. These locations should, therefore, be given highest priority for the installation of air-conditioning systems. Category 2: The windows in these locations are at a lesser risk for noise and dust infiltration than Category 1 and includes newer and/or fixed units. These locations should be monitored for noise and dust infiltration during the period when construction activities are occurring below grade and the windows replaced, as required. If windows cannot be used for ventilation, consider the installation of air-conditioning systems. Category 3: The windows in these locations are at a lesser risk for noise and dust infiltration than Category 2 and should be replaced once the construction activities are occurring above grade. If windows cannot be used for ventilation, consider the installation of air-conditioning systems. ECOH PAGE 1

4 PRIORITIZATION OF WINDOW REPLACEMENT AND INSTALLATION OF AIR-CONDITIONING SYSTEMS TORONTO DISTRICT SCHOOL BOARD JOHN FISHER PUBLIC SCHOOL ECOH PROJECT NO MAY OBSERVATIONS For the purposes of the assessment, the subject building is considered to be facing south. The following was noted during the assessment: Basement South side - Room B1 and B2 On the south wall - There are 5 single hung windows in the classroom. These are newer plastic and wood composite frame, double glass pane windows with gaskets all around them. These are vertically opening windows. In room B2 the central window needs adjustment, it does not slide all the way down. East side - Room B3 This room had mix of fixed and operable windows On the northeast wall - A row of 5 fixed single pane wooden frame windows is present and on the east, corner a single fixed glass pane wooden frame window is present On the east wall - There are present 2 operable single hung wooden frame windows with no gasket around them and the windows do not seal fully. These are vertically opening windows Boys washroom West wall - There is a row of 4 newer vinyl windows along wall (2 fixed and 2 operable). The operable sections are equipped with appropriate gaskets. Northwest side-lunch room This is located at the northwest corner of the school building. On the north wall - There are 2 sets of windows along the wall. On the west end of the room the windows are present as a row of 4 windows and toward the east end of the room they are present in a set of 5. They are single hung, vertically opening, single pane wooden frame windows with brush gaskets on the bottom. The second window from the west end has damaged brush gasket and fifth window is also damaged, all windows sashes are loose. First Floor North west side- Classroom 2 and South side- Classroom 3 Row of 5 double hung sash windows is present on the north wall of the room. The upper and lower sashes overlap in the center and slide up and down in wooden frame. The windows are single glass pane and open vertically. There are present brush gaskets on the sides and rubber gaskets at the bottom. The gaskets are not providing adequate air sealing as there are air drafts from the bottom of the window pane when fully closed. The upper windows are operable with a pulley system and rope. Windows in the upper row do not have any weather stripping or gaskets around them. All the windows have play in and out of the frame. The glass is thinner than windows in the basement. North side Classroom 1 and South side - Classroom 4 Row of 5 double hung sash windows is present on the north wall of the room 1 and south wall of room 4. The upper and lower sashes overlap in the center and slide up and down in wooden frame. The windows are single glass pane and open vertically. There are present brush gaskets on the sides and rubber gaskets at the bottom. The gaskets are not providing adequate air ECOH PAGE 2

5 PRIORITIZATION OF WINDOW REPLACEMENT AND INSTALLATION OF AIR-CONDITIONING SYSTEMS TORONTO DISTRICT SCHOOL BOARD JOHN FISHER PUBLIC SCHOOL ECOH PROJECT NO MAY 2017 sealing as there are air drafts from the bottom of the window pane when fully closed. The upper windows are operable with a pulley system and rope. Windows in the upper row do not have any weather stripping or gaskets around them. In Room 1, bug screens are present on lower windows, on the first window on the west side there is a squirrel nest and the wooden frame is eaten. In room 4, the fourth window from west side has no bottom gasket. South side - Classroom 5, Classroom 6, Classroom 7 Row of 4 double hung sash windows is present on the south wall of the room in classroom 5 and 6 whereas row of 5 windows is present in classroom 7. The upper and lower sashes overlap in the center and slide up and down in wooden frame. The windows are single glass pane and open vertically. There are present brush gaskets on the sides and rubber gaskets at the bottom. The gaskets are not providing adequate air sealing as there are air drafts from the bottom of the window pane when fully closed. The upper windows are operable with a pulley system and rope. Windows in the upper row do not have any weather stripping or gaskets around them. In classroom 6 the windows have foam gasket on the bottom surface. There is presently a fixed window in the washroom attached to classroom 5 whereas an outward opening hinged window is present in washroom attached to classroom 6. East side - Classroom 9 Row of 5 single pane fixed windows is present in the classroom. The inside of the classroom was quieter as compared to the other classrooms, less outside noise was heard. Far west wall - Classroom 11 Same as classroom 5,6 and 7. An additional window is present on the north end of the wall Second Floor North side- Room 13 and room 12 Windows same as classroom 2 on the first floor. Windows in Room 13 do not close fully (teacher has installed tape along bottom edge to block drafts). Far west side- classroom 21, 22 and 23 Windows same as classroom 2 on the first floor South side- Classroom 14, 15, 16, 17, and 18 Windows - the windows are in row of 5 windows and are relatively newer window frames. The top window is fixed though provision for it to slide in the frame is present. The frame has a plastic insert/lip around it should should reduce dust/noise infiltration relative to wood-only frames. East wall Classroom 19 The windows are double pane fixed windows, no outside noise was perceived within the classroom. East side- Classroom 20 There are 5 windows which are double sash hung windows. There are brush gasket on the bottom surface of the windows ECOH PAGE 3

6 PRIORITIZATION OF WINDOW REPLACEMENT AND INSTALLATION OF AIR-CONDITIONING SYSTEMS TORONTO DISTRICT SCHOOL BOARD JOHN FISHER PUBLIC SCHOOL ECOH PROJECT NO MAY 2017 General Gaps and missing gaskets were noted around the entrance doors of the building, including the doors along the west elevations of the building which face the construction area. Vents (exhaust and/or supply) were noted throughout the school. The majority of the ventilation systems in the school did not appear to be operating at the time of assessment. 4. RECOMMENDATIONS Based on the findings of the assessment, ECOH offers the following recommendations for consideration: 1. Replace the windows in the following locations as Category 1 priority: Basement Lunch Room, Classrooms 1-4, 11-13, 21, and Monitor and replace as required the windows in the following locations as Category 2 priority: Basement Boys Washroom, Classrooms B1-B3, 5, 6, 9, and 19, library, offices, stairwells, Room 26 and hallways 3. Replace the windows in the following locations as Category 3 priority: Classrooms 7, 8, 18, 20 and 23, Room 20A, and office beside Classroom The replacement windows should be double pane glass and the frame should have as much sound attenuation as the double pane glass components. Any operable sections of the windows must be equipped with adequate seals/gaskets to prevent dust and noise infiltration when the window is in the closed position. 5. Air-conditioning systems should not generate excessive noise and must be installed in such a manner that does not compromise the sound attenuation provided by new windows, if window-mounted air-conditioning systems are used. 6. Ensure proper seals are present around the perimeter of entrance doors, particularly along the west elevations. 7. Ensure existing ventilation systems are inspected and fully operational 5. STATEMENT OF LIMITATIONS The observations, results and conclusions drawn by ECOH are limited to the specific scope of work for which ECOH was retained, and are based solely on information generated as a result of the specific scope of work authorized by Toronto District School Board. Only those items that are capable of being observed, and are reasonably obvious to ECOH personnel or have been identified to ECOH by other parties, can be reported. ECOH has exercised a degree of thoroughness and competence that is consistent with the profession during the execution of this assessment. ECOH considers the opinions and information as they are presented in this report ECOH PAGE 4

7 PRIORITIZATION OF WINDOW REPLACEMENT AND INSTALLATION OF AIR-CONDITIONING SYSTEMS TORONTO DISTRICT SCHOOL BOARD JOHN FISHER PUBLIC SCHOOL ECOH PROJECT NO MAY 2017 to be factual at the time of the assessment. The conclusions are limited to the specific locations of where testing and/or observations were completed during the course of the assessment. It is important to note that work was completed with the utmost care and our extensive expertise in carrying out assessments. ECOH believes that the information collected during the assessment concerning the Work Area is reliable. No other warranties are implied or expressed. ECOH, to the best of its knowledge, believes this report to be accurate, however, ECOH cannot guarantee the completeness or accuracy of information supplied to ECOH by third parties. ECOH is an Environmental Consulting Company and as such any results or conclusions presented in this report should not be construed as legal advice. The material in this report reflects ECOH s professional interpretation of information available at the time of report preparation. Any use which a third party makes of this report, or any reliance on or decisions to be made based on it, are the responsibility of such third parties. ECOH accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. Should additional information become available that suggests other environmental issues of concern beyond that described in this report, ECOH Inc. retains the right to review this information and modify conclusions and recommendations presented in this report accordingly. We trust that this report meets with your requirements and we thank you for the opportunity to be of service. Should you have any questions, please do not hesitate to contact us at (905) ECOH Environmental Consulting Occupational Health Prepared By: Rob Fernandes, CIH Manager, IAQ, Mould and Microbial Contamination Reviewed By: Om Malik, PhD, PEng, CIH, ROH, FAIHA, QPRA Principal and CEO ECOH PAGE 5

8 APPENDIX I SITE PHOTOGRAPHS

9 SITE PHOTOGRAPHS Page 1 of 7 Client Name: Toronto District School Board Photo No. 1. Date: May Newer plastic and wood composite frame, double glass pane windows with gaskets all around them. These are vertically opening windows Locations- Basement B1, B2 To note- In Room B2, the central window needs adjustment, it does not slide all the way down Photo No. 2. Single pane wooden frame, fixed window Location- Room B3 Site Location: John Fisher Jr PS Project No

10 SITE PHOTOGRAPHS Page 2 of 7 Client Name: Toronto District School Board Photo No. 3. Operable single hung wooden frame windows with no gasket around them and the windows do not seal fully. These are vertically opening windows Location- Room B3 Site Location: John Fisher Jr PS Project No Photo No. 4. Fixed and operable newer vinyl windows with gaskets on operable sections Location- Boys Washroom Basement

11 SITE PHOTOGRAPHS Page 3 of 7 Client Name: Toronto District School Board Photo No. 5. Vertically opening, single pane wooden frame windows with brush gaskets on the bottom Location- Lunch rom in the Basement To Note- Second window from the west end has damaged brush gasket and fifth window is also damaged, all windows sashes are loose Site Location: John Fisher Jr PS Project No Photo No. 6. Double hung sash windows. The upper and lower sashes overlap in the center and slide up and down in wooden frame. The windows are single glass pane and open vertically. There are present brush gaskets on the sides and rubber gaskets at the bottom. The gaskets are not providing adequate air sealing as there are air drafts from the bottom of the window pane when fully closed. The upper windows are operable with a

12 SITE PHOTOGRAPHS Page 4 of 7 Client Name: Toronto District School Board pulley system and rope. Windows in the upper row do not have any weather stripping or gaskets around them. Locations- First Floor- Classroom 1,2,3,4,5,6,7 Second Floor- Classroom 13, 12,21,22 and 23 To Noteall the windows play in and out of the frame. The glass is thinner than windows in the basement room 1, In addition, bug screens are present on lower windows, on the first window on the west side there is a squirrel nest and the wooden frame is eaten. In room 4 the fourth window from west side has no bottom gasket Site Location: John Fisher Jr PS Project No

13 SITE PHOTOGRAPHS Page 5 of 7 Client Name: Toronto District School Board Photo No. 7. Single pane fixed window Location- Classroom 9 To note- Reduced perceived outside noise noted Site Location: John Fisher Jr PS Project No Photo No. 8. Newer window frames. The top window is fixed though provision for it to slide in the frame is present. The frame has a plastic insert/lip around it. Locations- Second floor Classrooms 14,15,16,17 and 18

14 SITE PHOTOGRAPHS Page 6 of 7 Client Name: Toronto District School Board Photo No. 9. Double pane fixed windows with wooden frames Locations- Classroom 19 To note- No outside noise was perceived within the classroom Site Location: John Fisher Jr PS Project No Photo No. 10. Double sash hung windows, with brush gasket on the bottom surface of windows as well Location Classroom 20

15 SITE PHOTOGRAPHS Page 7 of 7 Client Name: Toronto District School Board Photo No. 11. Exit Door 3 missing brush gasket on outside Site Location: John Fisher Jr PS Project No Photo No. 12. Exit door 3 air gap

16 APPENDIX II DRAWINGS

17 ³ N Location Description Washroom - Girls Stairwell HVAC/Fan Room HVAC/Fan Room Lunchroom Storage Room Washroom - Boys Storage Room Storage Room Storage Room Electrical Room Stairwell Lunchroom Boiler / Furnace Room Mechanical Room Classroom Classroom Boiler / Furnace Room Corridor Kitchen Caretakers Office Washroom Lunchroom Mechanical Chase Stairwell Entrance Foyer Storage Room Mechanical Room Storage Room Stairwell Mechanical Chase Caretakers Room LEGEND A Negative Sample Location Sample # A Not Tested Sample Location Sample # A Positive Sample Location Sample # Location/Room Description of Asbestos-Containing Materials Ceiling Tiles Pipe Insulation ,2, ,2,3 A A G:\Projects\2006\ _TDSB\GIS\MXDs\Draft\auto\batch\A_3597_1_-1.mxd ,2,3 A A ,2, Sample # Location Component # Description ,2, x1 Ceiling Tile pinhole, small holes and small irregular fissures ,2, x1 Ceiling Tile pinhole and large fissures ,2, x4 Ceiling Tile pinholes with large length-wise fissures ,2, Cement Over Duct Exterior ID: Roof ID: NOTES 1. This drawing is schematic only and is to be read in conjunction with the accompanying text. 2. Some numbers provided by the Toronto District School Board have not been used. 3.Only sampled materials and/or confirmed ACM is shown on the drawing. Shaded areas represent the presence of one or more Asbestos-Containing Material (ACM) component(s). Cross reference to Appendix IV - Room by Room Details - Summary Report By Location for specifics. REFERENCE Drawings based on plans provided by the Toronto District School Board TITLE PROJECT Feet ACM AND SAMPLE LOCATION PLAN BASEMENT JOHN FISHER JR PS 40 ERSKINE AVENUE TORONTO, ONTARIO ASBESTOS SURVEY - NORTHEAST REGION TORONTO DISTRICT SCHOOL BOARD PROJECT No FIGURE: BA

18 G:\Projects\2006\ _TDSB\GIS\MXDs\Draft\auto\batch\A_3597_1_1.mxd ³ N A ,2, A ,2, A A ,2, ,2, Location Description Stairwell Classroom Storage Room Classroom Library office Change Room Change Room Stage Storage Room Washroom - Girls Washroom - Boys Office / Admin. Area Gym Kitchen Storage Room Storage Room Exterior Storage Room Entrance Foyer Exterior Storage Room Entrance Foyer Corridor Library office Classroom Classroom Hub Room Washroom Classroom Entrance Foyer Classroom Washroom Washroom Storage Room Storage Room Caretakers Room Classroom Entrance Foyer Classroom Washroom Classroom Stairwell Classroom Classroom Main Office Washroom Office / Admin. Area Washroom - Womens Washroom - Mens Principal Office AV Room Vice - Principals Office Staff Room Classroom Storage Room Entrance Foyer HVAC/Fan Room Corridor Corridor Corridor Corridor LEGEND A A Negative Sample Location Sample # A Not Tested Sample Location Sample # Positive Sample Location Sample # Description of Asbestos-Containing Materials Exterior ID: Roof ID: NOTES 1. This drawing is schematic only and is to be read in conjunction with the accompanying text. 2. Some numbers provided by the Toronto District School Board have not been used. 3.Only sampled materials and/or confirmed ACM is shown on the drawing. Shaded areas represent the presence of one or more Asbestos-Containing Material (ACM) component(s). Cross reference to Appendix IV - Room by Room Details - Summary Report By Location for specifics. REFERENCE Drawings based on plans provided by the Toronto District School Board TITLE PROJECT Pipe Insulation Ceiling Tiles,Pipe Insulation Feet Location/Room Sample # Location Component # Description ,2, x 4 Ceiling Tile pinhole, small holes with medium fissures (clustered) ,2, x4 Ceiling Tile pinholes with long width-wise fissures ,2, x4 Ceiling Tile small random pinholes (textured) ,2, x4 Ceiling Tile pinholes and small holes in an irregular pattern ACM AND SAMPLE LOCATION PLAN FLOOR JOHN FISHER JR PS 40 ERSKINE AVENUE TORONTO, ONTARIO PROJECT No ASBESTOS SURVEY - NORTHEAST REGION TORONTO DISTRICT SCHOOL BOARD FIGURE: 1

19 ³ N Location Description Classroom Washroom - Mens Washroom - Womens Classroom Classroom Classroom Classroom Classroom Entrance Foyer Washroom Storage Room Teachers Workroom Caretakers Room Classroom Classroom Classroom Entrance Foyer Corridor Classroom Classroom Washroom Washroom Classroom Coat/Shoe Area Coat/Shoe Area Classroom Caretakers Office Classroom Corridor LEGEND A A Negative Sample Location Sample # A Not Tested Sample Location Sample # Positive Sample Location Sample # Description of Asbestos-Containing Materials Pipe Insulation Ceiling Tiles,Pipe Insulation Location/Room ,2, A ,2,3 G:\Projects\2006\ _TDSB\GIS\MXDs\Draft\auto\batch\A_3597_1_2.mxd A Sample # Location Component # Description ,2, x1 Ceiling Tile medium and large holes matrix pattern (not wood fibres) ,2, x4 Ceiling Tile pinhole with small irregular fissures Exterior ID: Roof ID: NOTES 1. This drawing is schematic only and is to be read in conjunction with the accompanying text. 2. Some numbers provided by the Toronto District School Board have not been used. 3.Only sampled materials and/or confirmed ACM is shown on the drawing. Shaded areas represent the presence of one or more Asbestos-Containing Material (ACM) component(s). Cross reference to Appendix IV - Room by Room Details - Summary Report By Location for specifics. REFERENCE Drawings based on plans provided by the Toronto District School Board TITLE PROJECT Feet ACM AND SAMPLE LOCATION PLAN FLOOR JOHN FISHER JR PS 40 ERSKINE AVENUE TORONTO, ONTARIO PROJECT No ASBESTOS SURVEY - NORTHEAST REGION TORONTO DISTRICT SCHOOL BOARD FIGURE: 2