TSD Thermoset Repair Manual 11-24-15.pdf

WeatherTech Consulting Group Thermoset Manual

WT

WeatherTech Repair Manual Thermoset Membrane Repairs Roof Repair Projects

Table of contents Thermoset Membranes

TS1 Membrane Patch Procedure (repair with adhesive) TS2 Membrane Patch Repair (repair with tape) TS3 Splits/Tears, Abrasions or Cuts (EPDM, Neoprene and ECH: Repair with adhesive) TS4 Splits/Tears, Abrasions or Cuts (Hypalon: Repair with adhesive) TS5 Splits/Tears, Abrasions or Cuts (Repair with tape) TS6 Ridges/Buckles (EPDM, Neoprene, ECH and Hyplaon: repair with adhesive) TS7 Ridges/Buckles (Repair with tape) TS8 Holes or Punctures (EPDM, Neoprene, ECH and Hypalon; Repair with adhesive) TS9 Holes or Punctures (Repair with tape) TS10 Laps and Splices (EPDM, Neoprene and ECH: Repair with adhesive) TS11 Laps and Splices (Hypalon: Repair with adhesive) TS12 Laps and Splices (Repair with tape) TS13 Surface Coating Deterioration (EPDM, Neoprene, ECH and Hypalon, General repair) TS14 Localized Membrane Deterioration (EPDM, Neoprene, ECH and Hypalon: Repair with adhesive) TS15 System Securement Deficiencies and Unbonded Areas of Adhered Membrane (Repair with adhesive) TS16 System Securement Deficiencies and Unbonded Areas of Adhered Membrane (Repair with tape) TS17 Fasteners (EPDM, Neoprene, ECH and Hypalon: Repair with adhesive) TS18 Fasteners (Repair with Tape) TS19 Deteriorated Ballast (General Repair) TS20 Ballast Scour (General Repair) TS21 Shuffling of Insulation below the Membrane (Repair with adhesive) TS22 Blisters (EPDM, Neoprene, ECH and Hypalon: Repair with adhesive) TS23 Membrane Support (EPDM, Neoprene, ECH and Hypalon: Repair with adhesive) TS24 Insulation Collapse/Compression in Ballasted Systems (EPDM, Neoprene, ECH and Hypalon:

Repair with adhesive) TS25 Insulation Collapse/Compression in Mechanically Attached Systems (EPDM, Neoprene, ECH and Hypalon: Repair with adhesive) TS26 Insulation Collapse/Compression in Fully Adhered Systems (EPDM, Neoprene, ECH and

Hypalon: Repair with adhesive) TS27 Debris, Vegetation and Other Contaminants (Repair with adhesive) TS28 Improper Equipment Supports (General Repair) TS29 Ponding Water (General Repair) TS30 Membrane Shrinkage in Ballasted Systems (EPDM, Neoprene, ECH and Hypalon; Repair with adhesive) TS31 Membrane Shrinkage in Mechanically Attached Systems (EPDM, Neoprene, ECH and

Hypalon; Repair with adhesive) TS32 Chalking of White Membranes (General Repair) TS33 Loose or Displaced Wall and Base Flashings (EPDM, Neoprene, ECH and Hypalon: Repair with adhesive) TS34 Loose or Displaced Wall and Base Flashings (EPDM, Neoprene, ECH and Hypalon: Repair with tape)

TS35 Unbonded Base Flashings Lap onto Field Membrane (Repair with adhesive) TS36 Unbonded Base Flashing Lap onto Field Membrane (Repair with tape) TS37 Weather-Cracked or Deteriorated Flashings (Repair with Adhesive) TS38 Termination Bar (For isolated loose fasteners) TS39 Termination Bar (Where continuous lengths of termination bars/mechanical attachments are loose) TS40 Termination Bar (Where the termination bar (s) have bowed TS41 Loose Mechanical Attachment of Base Flashings TS42 metal Cap Flashings/Coping (General Repair) TS43 Metal Counterflashing (General Repair) TS44 Metal Edge Flashings (Gravel Stops) Loose Flashings Membrane: Repair with adhesive TS45 Metal Edge Flashings (Gravel Stops) Loose Flashings Membrane: Repair with tape TS46 Penetrations (Loose or unbounded membrane flashing; Repair with adhesive) TS47 Penetrations (Loose or unbounded membrane flashing; Repair with tape) TS48 Penetration Pockets (Pitch Pans) Repair with Sealant TS49 Interior Drains (Repair with Sealant) TS50 Scuppers (Repair with adhesive) TS51 Scuppers (Repair with tape) TS52 Interior Gutters (General repair) TS53 Expansion Joints (General repair)

WeatherTech Repair Manual Thermoset Membrane Repairs

TS1-1

TS-1 - Membrane Patch Procedure Repair with Adhesive

1. To promote thorough adhesion of a patch, it is essential to begin preparing the surface by removing debris, contaminants and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152 mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch. Wash the area with a solution of mild soap (such as Spic 'n Span or another soap containing tri sodium phosphate) and water. Scrub with a stiff bristle brush. Dirt must be removed from the area to be patched. Ensure that the cleaned area extends a minimum of 6 inches (152 mm) beyond the defect.

2. Rinse thoroughly with clean water and allow the membrane to dry. A rubber bladed squeegee and clean, absorbent, lint-free cloths may be used to facilitate drying.

3. Cut a piece of like membrane large enough to extend 4 inches (103

mm) beyond any part of the defect. Round corners of the patch to prevent peeling of square comers.

4. Thoroughly clean the surface of the membrane to be repaired and backside of the patch material with a clean, absorbent, lint-free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified, other solvents such as Heptane, unleaded gasoline or Xylene may be used. Turn the cloth frequently and replace when dirty to prevent dirt and contaminants from being scrubbed into the membrane. Allow the solvent-wash to thoroughly flash-off and dry. The color of the cleaned membrane should be consistent, without streaking.

5. Apply the appropriate manufacturer-recommended primer to both surfaces to be mated and allow drying per the instructions provided.

7. Apply the proper adhesive to the membrane and the patch per the instructions provided with the adhesive: Pay particular attention to the application rates and procedures as proper adhesive thicknesses are critical for long-term repair integrity.

• butyl-based for EPDM

• neoprene-based or butyl for neoprene

• adhesive manufactured for Hypalon membranes

• nitrile-based for ECH

8. Allow time for the adhesive to dry so that it will not stick or string to the touch of a clean, dry finger. Also, apply pressure to the adhesive film by hand to determine if it has dried throughout its thickness.

WeatherTech Repair Manual Thermoset Membrane Repairs

TS1-2

9. When adhesive is ready, mate the two surfaces and smooth out with pressure from a gloved hand. Do not stretch or wrinkle the patch. Roll the patch with a roller to ensure solid contact of the two adhesive films.

10. Apply lap edge treatment:

(1) for EPDM, neoprene and ECH use lap sealant;

(2) for Hypalon use an application of seam sealant.

11. For additional security, the patch can be stripped in with 6 inch

(152mm) wide flashing material. If this technique is used, delete lap edge treatment under this patch and apply lap edge sealant along the edges of the stripping ply.

12. If ballast has been removed, redistribute the ballast over the exposed area after the seam sealant has skinned over.

TS2-1

TS-2 –

Procedure Repair With Tape

Membrane Patch

1. To promote thorough adhesion of a patch, it is essential to begin preparing the surface by removing debris, contaminants and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

2. Wash the area with a solution of mild soap (such as Spic 'n Span or a soap containing tri sodium phosphate) and water. Scrub with a stiff bristle brush. All dirt must be removed from the area to be patched.

Ensure that the cleaned area extends a minimum of 6 inches (152mm) beyond the defect.

3. Rinse thoroughly with clean water and allow the membrane to dry. A

4. After the membrane has dried, stir tape primer thoroughly and apply the primer to the membrane with a brush, scrubbing pad or lint-free rag. Prime an area the actual length and width of the repair piece.

5. While the primer is drying, cut a piece of tape cover strip (or flashing) the appropriate size, allowing at least a 3 inch (76mm) overlap of the area to be repaired.

6. Round the corners of the patch with scissors to prevent peeling of square corners.

7. Peel back the release paper on the back of the tape cover strip and install the covers trip centered over the area to be repaired with the adhesive side turned toward the primed surface. Smooth this patch into place as it is applied, taking care to avoid wrinkles.

8. Roll the patch in all directions with a rubber roller to ensure proper adhesion.

9. Apply lap edge treatment:

10. If ballast has been removed, redistribute the ballast over the exposed

TS2-2

TS3-1

TS-3 - Splits/Tears, Abrasions or Cuts in EPDM, Neoprene and ECH: Repair with adhesive

1. Where split, torn or cut, round the end of the defect to prevent additional damage.

2. If water in filtration is suspected, open the membrane and inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required.

Properly attach new dry insulation consistent with the thickness of the existing insulation and compatible with the other roof system components.

3. To promote thorough adhesion of a patch, it is essential to begin preparing the surface by removing debris, contaminants and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152 mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

4. Wash the area with a solution of mild soap (such as Spic 'n

Span or another soap containing tri sodium phosphate) and water. Scrub with a stiff bristle brush. Dirt must be removed from the area to be patched. Ensure that the cleaned area extends a minimum of 6 inches (152 mm) beyond the defect.

5. Rinse thoroughly with clean water and allow the membrane to dry. A rubber bladed squeegee and clean, absorbent, lint-free cloths may be used to facilitate drying.

6. Cut a piece of like membrane large enough to extend 4 inches

(103 mm) beyond any part of the defect. Round corners of the patch to prevent peeling of square corners.

7. Thoroughly clean the surface of the membrane to be repaired and back side of the patch material with a clean, absorbent, lint-free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified, other solvents such as Heptane, unleaded gasoline or Xylene may be used. Turn the cloth frequently and replace when dirty to prevent dirt and contaminants from being scrubbed into the membrane. Allow the solvent-wash to thoroughly flash-off and dry. The color of the cleaned membrane should be consistent, without streaking.

Spllts/Tears, Abrasions or Cuts EPDM, Neoprene and ECH:

Repair with Adhesive continued

TS3-2

8. Apply the appropriate manufacturer-recommended primer to both surfaces to be mated and allow to dry per the instructions provided.

• butyl-based for EPDM

• neoprene-based or butyl for neoprene

9. Apply the proper adhesive to the membrane and the patch per the instructions provided with the adhesive:

Pay particular attention to the application rates and procedures as proper adhesive thicknesses are critical for long-term repair integrity.

10. Allow time for the adhesive to dry so that it will not stick or string to the touch of a clean, dry finger. Also, apply pressure to the adhesive film by hand to determine if it has dried throughout its thickness.

11. When adhesive is ready, mate the two surfaces and smooth out with pressure from a gloved hand. Do not stretch or wrinkle the patch. Roll the patch with a roller to ensure solid contact of the two adhesive films.

12. Apply lap edge sealant.

13. For additional security, the patch can be stripped in with 6 inch (152mm) wide flashing material. If this technique is used, delete lap edge treatment under this patch and apply lap edge sealant along the edges of the stripping ply.

14. If ballast has been removed, redistribute the ballast over the exposed area after the seam sealant has skinned over.

TS4-1

TS-4

or Cuts Hypalon: Repair with Adhesive

- Splits/Tears, Abrasions

1. Where split, torn or cut, round the end of the defect to prevent additional damage.

2. If water infiltration is suspected, open the membrane and inspect the insulation and deck for damage. Remove and replace wet or damaged insulation and repair or replace the deck as required.

3. To promote thorough adhesion of a patch it is essential to begin preparing the surface by removing debris, contaminants and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

Span or another soap containing trisodium phosphate) and water. Scrub with a stiff bristle brush. Dirt must be removed from the area to be patched. Ensure that the cleaned area extends a minimum of 6 inches (152mm) beyond the defect.

(103mm) beyond any part of the defect. Round comers of the patch to prevent peeling of square corners.

7. Thoroughly clean the surface of the membrane to be repaired lint-free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified, other solvents such as acetone or methyl ethyl ketone (MEK) may be used. Turn the cloth frequently and replace when dirty to prevent dirt and contaminants from being scrubbed into the membrane. Allow the solvent-wash to thoroughly flash-off and dry. The color of the cleaned membrane should be consistent, without streaking.

8. Apply the appropriate manufacturer-recommended primer to both surfaces to be mated and allow to dry per the instructions provided.

TS4-2

9. Apply adhesive manufactured for Hypalon membranes to the membrane and the patch per the instructions provided with the adhesive. Pay particular attention to the application rates and procedures, as proper adhesive thicknesses are critical for long-term repair integrity.

10. Allow time for the adhesive to dry so that it will not stick or string to the touch of a clean, dry finger. Also, apply pressure to the adhesive film by hand to determine if it has dried throughout its thickness.

11. When adhesive is ready, mate the two surfaces and smooth out with pressure from a gloved hand. Do not stretch or wrinkle the patch. Roll the patch with a roller to ensure solid contact of the two adhesive films.

12. Use an application of seam sealant for Hypalon as a lap edge treatment.

13. For additional security, the patch can be stripped in with 6 inch

(152mm) wide flashing material. If this technique is used, delete lap edge treatment under this patch and apply lap edge sealant along the edges of the stripping ply.

14. If ballast has been removed, redistribute the ballast over the exposed area after the seam sealant has skinned over.

TS5-1

TS-5 -Splits/Tears, Abrasions or Cuts Repair with Tape

1. Where split, torn or cut, round the end of the defect to prevent additional damage.

2. If water infiltration is suspected, open the membrane and inspect the insulation and deck for damage. Remove and replace wet or damaged insulation and repair or replace the deck as required.

ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152 mm) beyond where the perimeter of the patch will intersect with the existing water. Scrub with a stiff bristle brush. Dirt must be removed from minimum of 6 inches (152 mm) beyond the defect.

cloths may be used to facilitate drying.

6. After the membrane has dried, stir tape primer thoroughly and apply the primer to the membrane with a brush, scrubbing pad or lint-free rag. Prime an area the actual length and width of the repair piece.

7. While the primer is drying, cut a piece of tape cover strip (or flashing) the appropriate size, allowing at least a 3 inch (76 mm) overlap of the area to be repaired.

8. Round the corners of the patch with scissors to prevent peeling of square corners.

9. Peel back the release paper on the back of the tape cover strip and install the cover strip centered over the area to be repaired with the adhesive side turned toward the primed surface.

Smooth this patch into place as it is applied, taking care to avoid wrinkles.

TS5-2

10. Apply lap edge treatment:

(1) for EPDM, neoprene and ECH use lap sealant

(2) for Hypalon use an application of seam sealant.

11. Roll the patch in all directions with a rubber roller to ensure proper adhesion.

12. If ballast has been removed, redistribute the ballast over the

TS6-1

TS-6 Ridges/Buckles EPDM, Neoprene, ECH and Hypalon:

Repair with adhesive

Generally, ridges and buckles on these materials do not need to be repaired in the roof system unless there is cracking. Unless obvious strain is being exerted on the membrane (i.e., if ridges are folded, the ridge is in a traffic area or if the membrane is cracking), it is best to leave this condition alone and monitor the area during inspections. If repair is required:

1. Cut the affected area and lay the membrane flat and smooth.

2. Round the end of the cut to prevent additional damage.

3. If water in filtration is suspected, inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required. Properly attach new, dry insulation that is both consistent with the thickness of the existing insulation and compatible with the other roof system components. For fully adhered membranes, read here the loose portions of the field membrane around the area of the repair.

4. To promote thorough adhesion of a patch, it is essential to begin ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend atleast 6inches (152 mm) beyond where the perimeter of the patch will intersect with the existing

5. Wash the area with a solution of mild soap (such as Spic 'n Span or another soap containing trisodium phosphate) and water. Scrub with a stiff bristle brush. Dirt must be removed from the area to be patched. Ensure that the cleaned area extends a minimum of 6 inches (152mm) beyond the defect.

6. Rinse thoroughly with clean water and allow the membrane to dry.

A rubber bladed squeegee and clean, absorbent, lint-free cloths may be used to facilitate drying.

7. Cut a piece of like membrane large enough to extend 4 inches (103mm) beyond any part of the defect. Round corners of the patch to prevent peeling of square comers.

8. Thoroughly clean the surface of the membrane to be repaired and back side of the patch material with a clean, absorbent, lint-free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified; other solvents such as Heptane, unleaded gasoline or Xylene may be used for EPDM, neoprene and ECH. For

TS6-2

Hypalon, acetone or methyl ethyl ketone (MEK) may be used. Turn the cloth frequently and replace when dirty to prevent dirt and contaminants from being scrubbed into the membrane. Allow the

9. Apply the appropriate manufacturer-recommended primer to both surfaces to be mated and allow to dry per the instructions provided.

10. Apply the proper adhesive to the membrane and the patch per the instructions provided with the adhesive:

• butyl-based for EPDM

• neoprene-based or butyl for neoprene

• nitrile based for ECH

Pay particular attention to the application rates and procedures as proper adhesive thicknesses are critical for long-term repair integrity.

For Hypalon as an alternative to using adhesive, the patch may be installed by hot air welding if the material is less than one year old.

11. Allow time for the adhesive to dry so that it will not stick or string to the touch of a clean, dry finger. Also, apply pressure to the adhesive film by hand to determine if it has dried throughout its thickness.

12. When adhesive is ready, mate the two surfaces and smooth out with the patch with a roller to ensure solid contact of the two adhesive films.

13. Apply lap edge treatment:

(2) for Hypalon use an application of seam sealant.

14. For additional security, the patch can be stripped in with 6 inch

(152mm) wide flashing material. If this technique is used, delete lap

15. If ballast has been removed, redistribute the ballast over the exposed

TS7-1

TS-7 - Ridges/Buckles Repair with Tape

Unless obvious strain is being exerted on the membrane (i.e., if ridges are folded, the ridge is in a traffic area or if the membrane is cracking), it is best to leave this condition alone and monitor the area during inspections. If repair is required:

1. If water infiltration is suspected, cut open the membrane and inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required. Properly attach new, dry insulation that is both consistent with the thickness of the existing insulation and compatible with the other roof system components.

2. To promote thorough adhesion of a patch, it is essential to and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

3. Wash the area with a solution of mild soap (such as Spic 'n water. Scrub with a stiff bristle brush. Dirt must be removed from the area to be patched. Ensure that the cleaned area extends a minimum of 6 inches (152mm) beyond the defect.

4. Rinse thoroughly with clean water and allow the membrane to dry. A rubber bladed squeegee and clean, absorbent, lint-free cloths may be used to facilitate drying.

5. After the membrane has dried, stir tape primer thoroughly and apply the primer to the membrane with a brush, scrubbing pad or lint-free rag. Prime an area the actual length and width of the repair piece.

6. While the primer is drying, cut a piece of tape cover strip (or flashing) the appropriate size, allowing at least a 3 inch (76mm) overlap of the area to be repaired.

7. Round the corners of the patch with scissors to prevent peeling of square corners.

8. Peel back the release paper on the back of the tape cover strip and install the cover strip centered over the area to be repaired with the adhesive side turned toward the primed surface. Smooth the patch into place as it is applied, taking care to avoid wrinkles.

TS7-2

9. Apply lap edge treatment:

(1) for EPDM, neoprene and ECH use lap sealant;

(2) for Hypalon use an application of seam sealant.

10. Roll the patch in all directions with a rubber roller to ensure proper adhesion.

11. If ballast has been removed, redistribute the ballast over the exposed area after the seam sealant has skinned over.

TS8-1

TS-8 - Holes or Punctures EPDM, Neoprene, ECH and Hypalon: Repair with adhesive

1. Round the end of the defect to prevent additional damage.

2. If water infiltration is suspected, open the membrane and inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required. Properly attach new, dry insulation that is both consistent with the thickness of the existing insulation and compatible with the other roof system components.

preparing the surface by removing debris, contaminants and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend atleast 6 inches (152mm) beyond where the perimeter of the

4. Wash the area with a solution of mild soap (such as Spic 'n Span or another soap containing trisodium phosphate) and water. Scrub with a stiff bristle brush. Dirt must be removed from the area to be

5. Rinse thoroughly with clean water and allow the membrane to dry. A rubber bladed squeegee and clean, absorbent, lint-free cloths may be used to facilitate drying.

6. Cut a piece of like membrane large enough to extend 4 inches (103mm) beyond any part of the defect. Round corners of the patch to prevent peeling of square corners.

7. Thoroughly clean the surface of the membrane to be repaired and back side of the patch material with a clean, absorbent, lint-free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified, other solvents such as Heptane, unleaded gasoline or Xylene may be used for EPDM, neoprene and ECH. For Hypalon, acetone or methyl ethyl ketone (MEK) maybe used. Turn the cloth frequently and replace when dirty to prevent dirt and contaminants from being scrubbed into the membrane. Allow the solvent-wash to thoroughly flash-off and dry. The color of the cleaned membrane should be consistent, without streaking.

8. Apply the appropriate manufacturer-recommended primer to both

TS8-2

9. Apply the proper adhesive to the membrane and the patch per the instructions provided with the adhesive:

• butyl-based for EPDM

• neoprene-based or butyl for neoprene

10. Allow time for the adhesive to dry so that it will not stick or string to the touch of a clean, dry finger. Also, push the adhesive film to determine if it has dried throughout its thickness.

11. When adhesive is ready, mate the two surfaces and smooth out with pressure from a gloved hand. Do not stretch or wrinkle the patch.

Roll the patch with a roller to ensure solid contact of the two adhesive films.

12. Apply lap edge treatment:

(2) for Hypalon use an application of seam sealant.

13. For additional security, the patch can be stripped in with 6 inch (152mm) wide flashing material. If this technique is used, delete lap edge treatment under this patch and apply lap edge sealant along the edges of the stripping ply.

14. If ballast has been removed, redistribute the ballast over the

TS9-1

TS-9

- Holes or Punctures Repair with Tape

1. Round the end of the defect to prevent additional damage.

2. If water infiltration is suspected, open the membrane and inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required.

Properly attach new, dry insulation that is both consistent with the thickness of the existing insulation and compatible with the other roof system components.

3. To promote thorough adhesion of a patch, it is essential to and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing water. Scrub with a stiff bristle brush. Dirt must be removed cloths may be used to facilitate drying.

6. After the membrane has dried, stir tape primer thoroughly and apply the primer to the membrane with a brush, scrubbing pad or lint-free rag. Prime an area the actual length and width of the

7. While the primer is drying, cut a piece of tape cover strip (or flashing) the appropriate size, allowing at least a 3 inch (76mm) overlap of the area to be repaired.

8. Round the corners of the patch with scissors to prevent peeling of square corners.

9. Peel back the release paper on the back of the tape cover strip and install the cover strip centered over the area to be repaired with the adhesive side turned toward the primed surface.

Smooth the patch into place as it is applied, taking care to avoid wrinkles.

10. Apply lap edge treatment:

(1) for EPDM, neoprene and ECH. use lap sealant;

TS9-2

11. Roll the patch in all directions with a rubber roller to ensure proper adhesion.

12. If ballast has been removed, redistribute the ballast over the

Roof Repair Project

TS10-1

TS-10 - Laps and Splices EPDM, Neoprene and ECH:

Repair with adhesive

1. Open laps or splices should be pulled back to a sound part of the seam or splice and any debris removed.

2. If water infiltration is suspected, cut open the membrane and inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required.

Properly attach new, dry insulation that is both consistent with thickness of the existing insulation and compatible with the other roof system components.

3. After cleaning the open lap area, the open lap or splice should be glued together with seam adhesive prior to effecting the installation of a patch.

4. To promote thorough adhesion of a patch, it is essential to begin preparing the surface by removing debris, contaminants, unbonded surface coating and/or ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

5. Wash the area with a solution of mild soap (such as Spic 'n Span or another soap containing trisodium phosphate) and water. Scrub with a stiff bristle brush. Dirt must be removed from the area to be patched. Ensure that the cleaned area extends a minimum of 6 inches (152mm) beyond the defect.

6. Rinse thoroughly with clean water and allow the membrane to dry. A rubber bladed squeegee and clean, absorbent, lint-free cloths may be used to facilitate drying.

7. Cut a piece of like membrane large enough to extend 4 inches (103mm) beyond any part of the defect. Round corners of the patch to prevent peeling of square corners.

8. Thoroughly clean the surface of the membrane to be repaired and back side of the patch material with a clean, absorbent, lint free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified, other solvents such as Heptane, unleaded gasoline or Xylene may be used. Turn the cloth frequently and replace when dirty to prevent dirt and contaminants from being scrubbed into the membrane. Allow the solvent-wash to thoroughly flash-off and dry. The color of the cleaned membrane should be consistent, without streaking.

9. Apply the appropriate manufacturer-recommended primer to

Roof Repair Project

TS10-2

10. Apply the proper adhesive to the membrane and the patch per the instructions provided with the adhesive:

• butyl-based for EPDM

• neoprene-based or butyl for neoprene

• adhesive manufactured for Hypalon membranes

• nitrile-based for ECH Pay particular attention to the application rates and procedures as proper adhesive thicknesses are critical for long-term repair integrity.

11. Allow time for the adhesive to dry so that it will not stick or string to the touch of a clean, dry finger. Also, apply pressure to the adhesive film by hand to determine if it has dried throughout its thickness.

12. When adhesive is ready, mate the two surfaces and smooth out with pressure from a gloved hand. Do not stretch or wrinkle the patch. Roll the patch with a roller to ensure solid contact of the two adhesive films.

13. Apply lap edge sealant.

14. For additional security, the patch can be stripped in with 6 inch

(152mm) wide flashing material. If this technique is used, delete lap edge treatment under this patch and apply lap edge sealant along the edges of the stripping ply.

15. If ballast has been removed, redistribute the ballast over the

TS11-1

TS-11 - Laps and Splices Hypalon: Repair with adhesive

1. Open laps or splices should be pulled back to a sound part of the seam or splice and any debris removed.

2. If water infiltration is suspected, cut open the membrane and inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required.

Properly attach new, dry insulation hat is both consistent with the thickness of the existing insulation and compatible with the other roof system components.

3. After cleaning the open lap area, the open lap or splice should be glued together with seam adhesive prior to effecting the installation of a patch.

4. To promote thorough adhesion of a patch, it is essential to begin preparing the surface by removing debris, contaminants, unbonded surface coating and/or ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the mem-brane. The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

5. Wash the area with a solution of mild soap (such as Spic 'n Span or another soap containing trisodium phosphate) and water.

Scrub with a stiff bristle brush. Dirt must be removed from the area to be patched. Ensure that the cleaned area extends a minimum of 6 inches (152mm) beyond the defect.

6. Rinse thoroughly with clean water and allow the membrane to cloths maybe used to facilitate drying.

7. Cut a piece of like membrane large enough to extend 4inches

(103mm) beyond any part of the defect. Round corners of the patch to prevent peeling of square corners.

8. Thoroughly clean the surface of the membrane to be repaired and back side of the patch material with a clean, absorbent, lint-free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified, other solvents such as Heptane, unleaded gasoline or Xylene may be used. Turn the cloth frequently and replace when dirty to prevent dirt and contaminants from being scrubbed in to the membrane. Allow the solvent-wash to thoroughly flash-off and dry. The color of the cleaned membrane should be consistent, without streaking.

TS11-2

9. Apply the appropriate manufacturer-recommended primer to both surfaces to be mated and allow to dry per the instructions provided.

10. Apply adhesive manufactured for Hypalon membranes to the membrane and the patch per the instructions provided with the adhesive. Pay particular attention to the application rates and procedures, as proper adhesive thicknesses are critical for long-term repair integrity.

11. Allow time for the adhesive to dry so that it will not stick or string to the touch of a clean, dry finger. Also, apply pressure to the adhesive film by hand to determine if it has dried throughout its thickness.

12. When adhesive is ready, mate the two surfaces and smooth out with pressure from a gloved hand. Do not stretch or wrinkle the patch.

Roll the patch with a roller to ensure solid contact of the two adhesive films.

13. Use an application of seam sealant for Hypalon as a lap edge treatment.

14. For additional security, the patch can be stripped in with 6 inch (152mm) wide flashing material. If this technique is used, delete lap edge treatment under this patch and apply lap edge sealant along the edges of the stripping ply.

TS12-1

TS-12

- Laps and Splices Repair with Tape

1. Open laps or splices should be pulled back to a sound part of the seam or splice and debris should be removed.

2. If water infiltration is suspected, cut open the membrane and inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required. Properly attach new, dry insulation that is both consistent with the thickness of the existing insulation and compatible with the other roof system components.

3. The open lap or splice should be glued together with seam adhesive prior to the installation of a patch.

4. To promote thorough adhesion of a patch, it is essential to begin preparing the surface by removing debris, contaminants and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

5. Wash the area with a solution of mild soap (such as Spic 'n Span or another soap containing trisodium phosphate) and water. Scrub with a stiff bristle brush. Dirt must be removed

6. Rinse thoroughly with clean water and allow the membrane to dry. A rubber bladed squeegee and clean, absorbent, lint-free cloths may be used to facilitate drying.

7. After the membrane has dried, stir tape primer thoroughly and apply the primer to the membrane with a brush, scrubbing pad or lint-free rag. Prime an area the actual length and width of the repair piece.

8. While the primer is drying, cut a piece of tape cover strip (or flashing) the appropriate size, allowing at least a 3 inch (76mm) overlap of the area to be repaired.

9. Round the corners of the patch with scissors to prevent peeling of square corners.

10. Peel back the release paper on the back of the tape cover strip and install the covers trip centered over the area to be repaired with the adhesive side turned toward the primed

TS12-2

11. Roll the patch in all directions with a rubber roller to ensure

12. Apply lap edge treatment:

(1) for EPDM, neoprene and ECH. use lap sealant;

(2) for Hypalon use an application of seam sealant.

13. If ballast has been removed, redistribute the ballast over the

TS13-1

TS-13 Surface Coating Deterioration EPDM, Neoprene, ECH and Hypalon: General repair

1. Thoroughly clean the surface of the membrane of all debris, dirt and unbonded coating using a power washer (keep the pressure below 800psi (5515kPa) to avoid damaging the membrane) or scrubber, taking care not to damage the surface of the membrane.

2. Allow the membrane to dry.

3. Inspect for additional loose coating; if loose coating is found; repeat steps 1-2.

4. Reapply new coating that is compatible with the membrane material and existing coating.

TS14-1

TS-14 - Localized Membrane Deterioration EPDM, Neoprene, ECH and Hypalon: Repair with Adhesive

1. If water infiltration is suspected, cut open the membrane and inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required.

Properly attach new, dry insulation that is both consistent with the thickness of the existing insulation and compatible with the other roof system components.

2. To promote thorough adhesion of a patch, it is essential to and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing water. Scrub with a stiff bristle brush. Dirt must be removed

4. Rinse thoroughly with clean water and allow the membrane to cloths may be used to facilitate drying.

5. Cut a piece of like membrane large enough to extend 4 inches (103mm) beyond any part of the defect. Round corners of the patch to prevent peeling of square corners.

6. Thoroughly clean the surface of the membrane to be repaired and back side of the patch material with a clean, absorbent, lint-free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified, other solvents such as Heptane, unleaded gasoline or Xylene may be used for EPDM, neoprene and ECH. For Hypalon, acetone or methyl ethyl ketone (MEK) may be used. Turn the cloth frequently and replace when dirty to prevent dirt and contaminants from being scrubbed into the membrane. Allow the solvent-wash to thoroughly flash-off and dry. The color of the cleaned membrane should be consistent, without streaking.

7. Apply the appropriate manufacturer-recommended primer to

TS14-2

8. Apply the proper adhesive to the membrane and the patch per the instructions provided with the adhesive.

• butyl-based for EPDM

• neoprene-based or butyl for neoprene

Pay particular attention to the application rates and procedures as proper adhesive thicknesses are critical for long-term repair integrity. For Hypalon as an alternative to using adhesive, the patch may be installed by hot air welding if the material is less than one year old.

9. Allow time for the adhesive to dry so that it will not stick or string to the touch of a clean, dry finger. Also, apply pressure to the adhesive film by hand to determine if it has dried throughout its thickness.

10. When adhesive is ready, mate the two surfaces and smooth out with pressure from a gloved hand. Do not stretch or wrinkle the patch. Roll the patch with a roller to ensure solid contact of the two adhesive films.

11. Apply lap edge treatment:

(1) for EPDM, neoprene and ECH use lap sealant;

(2) for Hypalon use an application of seam sealant.

12. For additional security, the patch can be stripped in with 6 inch (152mm) wide flashing material. If this technique is used, delete lap edge treatment under this patch and apply lap edge sealant along the edges of the stripping ply.

TS15-1

TS-15 - System Securement Deficiencies and Unbonded Areas of Adhered Membrane Repair with Adhesive

1. For areas of unbonded membrane (in a fully adhered system), fasten the perimeter to prevent further delamination.

a. If mechanical attachment is feasible and the unbounded area is less than 25 square feet (2.3 square meters), install one (1) fastener/plate per 2 square feet (0.2 square meters) and strip-in by installing a round patch over each newly installed fastener (ensure that patch extends a minimum of 3 inches (76mm) beyond the fastener/plate).

b. If the unbonded area exceeds 25 square feet (2.3 square meters) after preparing the membrane, install batten bars and fasteners spaced to provide one (1) fastener per 4 square feet (0.4 square meters) (1 fastener per 2 square feet (0.2 square meters) in corners and along the perimeter of the roof.

2. To promote thorough adhesion of a patch or stripping ply, it is essential to begin preparing the surface by removing debris, contaminants and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane.

The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

Span) or another soap containing trisodium phosphate) and water. Scrub with a stiff bristle brush. Dirt must be removed

5. Cut a piece of like membrane large enough to extend 4 inches

(103 mm) beyond any part of each fastener/batten bar.

Round corners of the patch to prevent peeling of square corners.

6. Thoroughly clean the surface of the membrane to be repaired lint-free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified, other solvents such as Heptane, unleaded gasoline or Xylene may be used for EPDM, neoprene and ECH. For Hypalon, acetone or methyl ethyl ketone (MEK) may be used. Turn the cloth frequently and replace when dirty to

TS15-2

prevent dirt and contaminants from being scrubbed into the membrane. Allow the solvent-wash to thoroughly flash-off and dry. The color of the cleaned membrane should be consistent, without streaking.

7. Apply the appropriate manufacturer-recommended primer to both surfaces to be mated and allow to dry per the instructions provided.

8. Apply the proper adhesive to the membrane and the patch per the instructions provided with the adhesive:

• butyl-based for EPDM

• neoprene-based or butyl for neoprene

Pay particular attention to the application rates and procedures as proper adhesive thicknesses are critical for long-term repair integrity. For Hypalon as an alternative to using adhesive, the patch may be installed by hot air welding if the material is less than one year old.

9. Allow time for the adhesive to dry so that it will not stick or string to the touch of a clean, dry finger. Also, apply pressure to the adhesive film by hand to determine if it has dried throughout its thickness.

10. When adhesive is ready, mate the two surfaces and smooth out with pressure from a gloved hand. Do not stretch or wrinkle the patch. Roll the patch with a roller to ensure solid contact of the two adhesive films.

11. Apply lap edge treatment:

12. For additional security, the patch can be stripped in with 6 inch (152mm) wide flashing material. If this technique is used, delete lap edge treatment under this patch and apply lap edge sealant along the edges of the stripping ply.

13. If ballast has been removed, redistribute the ballast over the exposed area after the seam sealant has skinned over.

TS16-1

TS-16 - System Securement Deficiencies and Unbonded Areas of Adhered Membrane Repair with tape

1. For areas of unbonded membrane (in a fully adhered system), fasten the perimeter to prevent further delamination.

a) If mechanical attachment is feasible and the unbounded area is less than 25 square feet (2.3 square meters), install one

(1) fastener/plate per 2 square feet (0.2 square meters) and strip-in by installing a round patch over each newly installed fastener (ensure that patch extends a minimum of 3 inches (76mm) beyond the fastener/plate).

b) If the unbonded area exceeds 25 square feet (2.3 square meters) after preparing the membrane, install batten bars and fasteners spaced to provide 1 fastener per 4 square feet (0.4 square meters) (1 fastener per 2 square feet (0.2 square meters) in corners and along the perimeter of the roof).

2. To promote thorough adhesion of a patch or stripping ply, it is essential to begin preparing the surface by removing debris, contaminants and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

water. Scrub with a stiff bristle brush. Dirt must be removed from minimum of 6 inches (152mm) beyond the defect.

5. After the membrane has dried, stir tape primer thoroughly and apply the primer to the membrane with a brush, scrubbing pad or lint-free rag. Prime an area the actual length and width of the

6. While the primer is drying, cut a piece of tape cover strip (or flashing) the appropriate size, allowing at least a 3 inch (76mm) overlap of the area to be repaired.

7. Round the corners of the patch with scissors to prevent peeling

TS16-2

8. Peel back the release paper on the back of the tape cover strip and install the cover strip centered over the area to be repaired with the adhesive side turned toward the primed surface.

Smooth the patch into place as it is applied, taking care to avoid wrinkles.

9. Apply lap edge treatment:

10. Roll the patch in all directions with a rubber roller to ensure

11. If ballast has been removed, redistribute the ballast over the

TS17-1

TS-17 Fasteners - EPDM, Neoprene, ECH and Hypalon:

Repair with Adhesive

1. Loose fasteners should be removed and replaced with new fasteners and plates in an adjacent location. Do not install the same size fastener into an existing hole. If the hole is stripped, install an oversized fastener.

2. For each new fastener, provide a patch that extends 3 inches (76mm) beyond the hole created and the installed fastener/plate.

3. To promote thorough adhesion of a patch, it is essential to begin preparing the surface by removing debris, contaminants and ballast from the surface of the membrane or flashing to be repaired. In addition, any field applied coating must be removed prior to performing repairs to the membrane. The area to be prepared should extend at least 6 inches (152 mm) beyond where the perimeter of the patch will intersect with the existing membrane to provide an ample clean work area to apply the patch.

4. If water infiltration is suspected, cut open the membrane and inspect the insulation and deck for damage. Remove wet or damaged insulation and repair or replace the deck as required. Properly attach new, dry insulation that is both consistent with the thickness of the existing insulation and compatible with the other roof system components.

5. Wash the area with a solution of mild soap (such as Spic 'n water. Scrub with a stiff bristle brush. Dirt must be removed from the area to be patched. Ensure that the cleaned area extends a minimum of 6 inches (152mm) beyond the defect.

lint-free cloths may be used to facilitate drying.

7. Cut a piece of like membrane large enough to extend 4 inches (103mm) beyond any part of each fastener/batten bar. Round corners of the patch to prevent peeling of square corners.

8. Thoroughly clean the surface of the membrane to be repaired and back side of the patch material with a clean, absorbent, lint-free cloth and an acceptable solvent cleaner as prescribed by the membrane manufacturer. If the membrane manufacturer cannot be identified, other solvents such as Heptane, unleaded gasoline or Xylene may be used for EPDM, neoprene and ECH. For Hypalon, acetone or methyl ethyl ketone (MEK) may be used. Turn the cloth frequently and replace when dirty to prevent dirt

TS17-2

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