Lottes Roofing
EPDM, TPO Rubber and Roof Coatings

 
Phone 1-888-696-3829  FAX 1-636-600-8262

Outside the United States Phone 001-636-724-8188

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#1 - PARAPET WALL DETAIL
 

1. Mechanical Fasteners 12" on center preferred on vertical surface.

2. Fasten EPDM flashing with roofing nails 6" on center.

3. Vertical surfaces over 24" in height require bonding adhesive on the entire vertical surface.

4. 6" wide 60 mil uncured EPDM (3" min. on each surface) adhered with splicing adhesive and sealed along both edges with seam sealer.

5.  6" wide reinforced EPDM RPF strips may be mechanically attached to the roof deck area on the underside of the EPDM using deck plates and fasteners in lieu of the 6" uncured flashing strip on the topside exposed EPDM deck sheet.  

 

 

 

 

 

 

 

 

5. Extend EPDM membrane on to the horizontal surface at least 3" and bond with splicing adhesive. Seal the exposed edge with seam sealer.

6. Bonding Adhesive for fully adhered membrane, Grid Bond System, and Seam Disk System in lieu of ballast.

7. Alternate parapet side wall option. On fully adhered roofs only, you may bring the horizonal deck sheet fully adhered on the deck and going up the vertical parapet with a minimum of 6" up the vertical wall. Once the deck sheet is brought up the vertical parapet wall, an EPDM sheet may be fully adhered on the parapet wall with bonding adhesive, placing the parapet EPDM sheet on both the top of the parapet wall and vertical side wall with a minimun 2" overlap on the vertical in place deck sheet. This type of parapet EPDM installation precludes the use of either 3" seam tape or butyl splce adhesive in the EPDM parapet side wall overlap area. This parapet wall type of termination must NOT be in a position to have any ponding water.
 
 
 


#2 - PARAPET SIDE WALL TERMINATIONS
 

1. Seam Sealer

2. ALL APPLICATIONS: EPDM flashing adhered to vertical substrate over 24" with bonding adhesive.

3. #10 aluminum retainer bar fastener 8" on center with masonry fasteners.

4. Flashing to substrate 6" on center.
 
 
 
 
 
 
 
 
 
 
 
 
 
 

5. Lead wool tamped into void.

6. Hard rubber rod stock.

7. Masonry grout.


 

 8. Alternate parapet side wall option. On fully adhered roofs only, you may bring the horizonal deck sheet fully adhered on the deck and going up the vertical parapet with a minimum of 6" up the vertical wall. Once the deck sheet is brought up the vertical parapet wall, an EPDM sheet may be fully adhered on the parapet wall with bonding adhesive with a minimun 2" overlap on the vertical in place deck sheet. This type of parapet EPDM installation precludes the use of either 3" seam tape or butyl splce adhesive in the EPDM parapet side wall overlap area. This parapet wall type of termination must NOT be in a position to have any ponding water.
 
 
 
 
 
 
 
 
 


#3- GRAVEL GUARDS
 


 
 
 
 
 
 
 
 
 


 
 
 
 
 
 
 
 
 
 



#4- PERIMETER TERMINATIONS
 

(Reference: Diagrams I, II, III and IV)

1. 60 mil uncured EPDM lapped onto membrane (3" min.), secured with splicing adhesive and seam sealed on all exposed edges.  60 mil uncured or cured composite with butyl tape is acceptable.

2. Protection board.

3. Existing BUR with gravel removed.

4. Existing dry insulation.  All wet insulation shall be removed and replaced with new insulation.

5. Bonding Adhesive on all adhered jobs in lieu of Ballast.

6. On Non-Ballasted System the EPDM deck sheet may be brought over the perimeter and fastened using #10 aluminum termination bars with no strip flashing necessary.
 



#5 - CURB FLASHING
 

1. Seam Sealer.

2. 60 mil uncured EPDM secured to horizontal membrane at least 3" with splicing adhesive.

3. Bonding adhesive in lieu of Ballast.

4. 45 or 60 mil EPDM.

1. Seam Sealer.

2. EPDM secured to vertical with bonding adhesive over 12".

3. Sheet metal screws secured 6" on center with washers.

4. Bonding Adhesive in lieu of Ballast.

1. Seam Sealer.

2. 45 or 60 mil EPDM secured to horizontal at least 3" with splicing adhesive.

3. Mechanical Fasteners fastened 12" on center.

4. Term Bar.

5. Bonding Adhesive in lieu of Ballast.
 
 
 
 
 
 
 
 
 

1. Seam Sealer.

2. EPDM secured to horizontal at least 3" with splicing adhesive.

3. Roofing nails 6" on center.

4. Bonding Adhesive in lieu of Ballast.
 
 
 
 



#6 - EXPOSED CORNER
 

STEP 1

1. Cut membrane to fit the full surface of the curb on opposite sides.

2. Nail 6" on center.

3. EPDM end flashing.

4. Splicing Adhesive.

STEP 2

5. End Flashing in place with splicing adhesive covering the entire area for uncurled corner.

STEP 3

6. All cuts in EPDM shall be covered a minimum of 3" back from the edge of the cut.

7. Uncured corner should extend at least 3" one each side and extend at least 1" beyond bottom edge of cured EPDM Flashing.

8. Entire underside of uncured corner is covered with splicing adhesive.

9. Seam Sealer is on all exposed edges.
 
 
 



#7 - CONCEALED CORNER
 

STEP 1

1. Splicing adhesive 3" wide minimum.

STEP 2

1. Splicing adhesive 3" wide minimum.

3. Uncured corner with bottom flange covered with splicing adhesive.
 
 
 
 
 
 
 
 
 

STEP 3

4. Precut cured flashing with splicing adhesive on 3 sides.
 
 
 
 
 
 
 
 
 
 
 
 

STEP 4

5. Nails 6" on center.

6. Seam sealer on all exposed edges.
 
 
 
 
 
 
 
 



#8 - DRAIN FLASHING
 

I - Through Wall Scupper:

1. Seam Sealer.

2. 60 mil uncured EPDM secured with adhesive.

II - Through Deck Scupper:
 
 
 
 

III - Roof Drain:

3. EPDM secured with bonding adhesive.

4. Water cut-off mastic
 
 
 
 
 



#9- PIPE FLASHING
 

I - Premolded Flashing
 
 
 
 
 
 
 
 

(Reference: Diagrams I, II, III and IV)

1. Seam Sealer on all exposed edges.

2. Splicing adhesive.

3. 60 mil uncured EPDM formed and secured with 1" minimum bond to deck sheet membrane.

4. Additional insulation.

5. Additional metal.

6. Water filler on top of concrete domed to shed water.

7. Doughnut shaped 45 mil collar with at least 1/2" turn up on vertical pipe.

8. Bonding Adhesive in lieu of Ballast.

9. Deck Sheet.
 

II - Field Flashing

III - Hot Pipe

IV - Frost Jacket
 


#10 - TIE IN

1. Nail 6" on center.

2. 60 mil uncured EPDM secured with splicing adhesive and seam sealed along all exposed edges.
 
 
 
 
 
 
 
 
 
 
 

3. 60 mil uncured neoprene secured with splicing adhesive and stripped in with 12" wide roofing felts.  Replace gravel.

4. Seam Sealer.
 
 
 
 
 
 
 
 



#11 - PITCH PANS
 

I - Metal Pan (New Construction):

1. Fasten to metal curb to wood nailer.

2. Fill voids with mortar to within 2" of top.

3. Type 1 or type 3 asphalt or approved watertite sealer.

4. 60 mil uncured EPDM secured with splicing adhesive.

II - Premolded Pipe Boot (New Construction):

5. Seam Sealer.

6. Premolded pipe boots secured with splicing adhesive.

7. Additional insulation.


III - Reroof:

8. Existing pitch pan.

9. New metal pitch pan extention secured to existing with sheet metal screws.

10. Bonding Adhesive in lieu of Ballast.
 
 
 
 
 
 


#12 - WALL FLASHING
 

1. EPDM.

2. Bonding Adhesive.

3. #10 Aluminum Retainer Bar fasten 8" on center.

4. Seam Sealer.

5. Splicing Adhesive.

6. EPDM secured with splicing adhesive to membrane and with bonding adhesive on substrate.

7. Bonding Adhesive in lieu of Gravel.
 



#13 - EXPANSION JOINTS

1. EPDM laid over expansion joint.

2. 18 ga. galvanized steel fastened 12" on center.

3. Additional insulation.
 
 
 
 
 
 
 
 

4. 60 mil uncured EPDM (3" min. on each side) secured with splicing adhesive.

5. Seam Sealer.

6. Bonding Adhesive in lieu of gravel.
 
 
 
 
 
 
 
 



#14 - GRID BOND SYSTEM


 
 
 
 

Circle = 3" Plastic Plates

Shaded Rectangle = Sample of areas with Bonding Adhesive

1. Above diagram shows roofing layout using 4' x 8' insulation board over existing surface.  If insulation board is 2" or less in thickness, then a half board stagger insulation pattern must be used.

2. In addition to mechanical fastening, all perimeter needs minimum 100% coverage 6" back from edge with bonding adhesive.

3. If no insulation is used, then the 3" plastic plates may be omitted.

4. Bonding Adhesive shall be applied at 100% coverage 1' back from all insulation joints.



#15 - SEAM DISK SYSTEM