Difference between revisions of "Draft CD 1"

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| colspan="2"  | <big>'''''RoofStar Guarantee Standards''''' are <span style="color:#6495ed">'''blue-linked'''</span></big>
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<big><big>Division D - Construction Details</big></big>
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<big><big><big><big><big>EPDM | Membrane Termination A (Wall) ([[EPDM_Roof_Systems_Standard#10.3.2.3._General_Application_Requirements_for_Perimeters_and_Walls | Article 10.3.2.3.]])</big></big></big></big></big>
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<div class="panel-heading"><big>'''SBS Details'''</big></div>
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<div class="panel-heading"><big>'''EPDM Details'''</big></div>
 
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[[File:MF 13.3.1-1A.jpg|class=img-responsive | link=http://rpm.rcabc.org/images/f/fa/MF_13.3.1-1A.jpg]]
 
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[[File:MF 13.3.1-1B.jpg|class=img-responsive | link=http://rpm.rcabc.org/images/a/af/MF_13.3.1-1B.jpg]]
 
 
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[[File:10.3.2.3.-EPDM-A.png |class=img-responsive | link=https://rpm.rcabc.org/images/5/53/10.3.2.3.-EPDM-A.png]]
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[[File:MF 13.3.1-1.1 (Standing Seam).jpg|class=img-responsive | link=http://rpm.rcabc.org/images/9/99/MF_13.3.1-1.1_%28Standing_Seam%29.jpg]]
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:Drawing NTS
 
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[[File:MF 13.3.1-1.2 (S-Lock, Single).jpg|class=img-responsive | link=http://rpm.rcabc.org/images/4/42/MF_13.3.1-1.2_%28S-Lock%2C_Single%29.jpg]]
 
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[[File:MF 13.3.1-1.2 (S-Lock, Double).jpg|class=img-responsive | link=http://rpm.rcabc.org/images/2/21/MF_13.3.1-1.2_%28S-Lock%2C_Double%29.jpg]]
 
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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
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;(1) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#METALCAP-SBS|'''Metal Cap Flashing''']]: Fabricate and install in keeping with the Standards in Part '''13 METAL FLASHINGS'''.  Base membrane must extend across the top of the parapet (to waterproof the structure and separate the metal from moisture-susceptible substrates) and extend down the outside face of the parapet at least 50 mm (2”).  Edges must be hemmed (1a), although a kicked-out drip edge is optional (see '''13.3.2''' ('''1''') '''Fabrication''').
 
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;(2) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSMETALFASTENER|'''Fasteners''']]: Select for compatibility with metal flashing, membrane and substrate (see '''13.2.3 Fasteners''').
 
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;(3) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSMETALSECUREMENT|'''Clips''']]: Install cap flashings using a continuous or discontinuous metal ‘wind’ clip affixed to the outside face of the parapet, or to the top of the parapet (see Alternate illustration).  Fasten the clip following the standards in both '''13.3.3 Securement''' and '''13.3.5 Cap, Counter and Base Flashings'''.
 
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;(4) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSMETALSEAM|'''Seam''']]: Must be either a Standing Seam (illustrated) or an S-lock (single or double – see inset illustrations).  The use of acceptable seams allows for multi-directional expansion and contraction of sheet metal.
 
  
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;(1) [[EPDM Roof Systems Standard#PART_6|<big>Air/Vapour Control Layers</big>]]:
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:As specified by the ''Design Authority'' and installed to provide continuity for optimal control.
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;(2) [[EPDM Roof Systems Standard#PART_7|<big>Insulation</big>]]:
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:Installed in keeping with Section 7.3.  Multiple layering illustrated; layers must be offset and staggered at least 304.8 mm (12”) in each direction.
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;(3) [[EPDM Roof Systems Standard#PART_8|<big>Insulation Overlay Panel</big>]]:
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:Required for fully adhered membrane systems or when overburden is specified.  Panels must be offset and staggered from underlying insulation panels.
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;(4) [[EPDM Roof Systems Standard#PART_9|<big>Field Membrane</big>]]:
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:See Table 9.2. for permissible application methods and corresponding membrane properties.  Membrane must be installed according to the requirements in Section 9.3.
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;(5) [[EPDM Roof Systems Standard#PART_10|<big>Edge Securement</big>]]:
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:Proprietary to the membrane manufacturer.  Edge securement is required, irrespective of how the membrane is applied (i.e., adhered, self-adhered, mechanically fastened).
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;(6) [[EPDM Roof Systems Standard#PART_10|<big>Mechanical Fastening</big>]]:
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:Edge securement must be anchored to the roof structure to prevent membrane movement.
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;(7) [[EPDM Roof Systems Standard#PART_10|<big>Primer or Adhesive</big>]]:
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:Proprietary to the membrane manufacturer.  Primer may be required for self-adhered membranes; adhesive is required for all other applications.  All membranes applied to the vertical substrate must be fully adhered.
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;(8) [[EPDM Roof Systems Standard#PART_10|<big>Membrane Flashing</big>]]:
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:May be run continuously up the vertical substrate from the field or installed as separate flashing (see membrane manufacturer requirements).  Membrane shall be carried up the vertical substrate at least 203.2 mm (8”) above the ''finished roof system surface'', plus at least 76.2 mm (3”) for wall control layer overlap. In regions where heavy snow accumulation is possible, or to accommodate future roof membrane replacement, membrane should be carried at least 304.8 mm (12”) up the vertical substrate.
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;(9) [[EPDM Roof Systems Standard#PART_10|<big>Rigid Support for Through-wall Flashing (optional)</big>]]:
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:Where the ''wall'' is insulated on the exterior side of the structure, ''continuity'' of air and vapour controls must be protected from future damage during roof replacement.  This can be done by securing a suitable membrane receiver panel against the insulation.  The panel must be permanently affixed to the structure through the insulation.  During replacement of the roof membrane, membrane flashing may be removed from the receiver panel without disturbing the insulation and control layers.  In this way, material waste is also reduced.
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:Where the membrane may not easily separate from its receiver during roof replacement, a second panel (not illustrated) can be screw-fastened to the first.  During replacement, both the membrane and the secondary panel may be removed together, simplifying membrane replacement.
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;(10) [[EPDM Roof Systems Standard#PART_10|<big>Membrane Flashing Substrate</big>]]:
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:''Continuity'' of the water-resistive barrier means it must pass through the insulation assembly installed on the exterior side of the wall structure.  To do that, a membrane flashing passes through the insulation where the ''roof system'' terminates.  Blocking or another suitable support (i.e., hat track) is necessary to support the membrane and its linear metal flashing carrier.  Wood blocking illustrated.
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;(10) [[EPDM Roof Systems Standard#PART_10|<big>Through-wall Flashing</big>]]:
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:A self-adhered membrane is used to transition from the ''wall'' to the ''roofing assembly'', providing a continuous drainage path for water. Secure the ''linear metal flashing'' to the support underneath (see Item 9 or 10 above).
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:Note that the water resistive barrier membrane from the ''wall'' (installed by others – see Related Work below) overlaps the through-wall flashing (installed by the ''Contractor'') and is supported by a metal flashing with drip edge, to direct water from the wall to the roof surface.
  
 
=== RELATED WORK BY OTHERS ===
 
=== RELATED WORK BY OTHERS ===
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;(A) '''Parapet Structure''':
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;(A) [[EPDM Roof Systems Standard#PART_2|<big>Acceptable Deck</big>]]
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;(B) '''Parapet woodwork (sloped toward roof surface''':  
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:Illustrated deck is representative.  See Sub-section 2.1.5. for acceptable ''deck'' types and conditions.
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;(B) [[EPDM Roof Systems Standard#PART_2|<big>Wall Structure</big>]]
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:Illustrated wall is representative.  Wall control layers (i.e., water resistive barrier) must overlap ''roofing system'' to achieve ''continuity''.  See Sub-section 2.1.7. for wall conditions.
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;(C) <big>Wall System Finish</big>
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:Illustrated system is representative and shows water-resistive barrier overlapping roof membrane (See above, Item 8).
  
 
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'''NOTE''': Refer to '''''RoofStar Guarantee Standards''''' for additional requirements.
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'''NOTE''': See the [[EPDM Roof Systems Standard | '''EPDM Roof Systems Standard''']] for additional requirements.
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[[EPDM Roof System Details|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''EPDM Roof System Details'']]
  
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[[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies |<i class="fa fa-chevron-circle-left fa" ></i> Back to ''RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies'']]
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[[Main Page | <i class="fa fa-home fa"></i> Home]]
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[[SBS Modified Bitumen Construction Details|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''SBS Modified Bitumen Construction Details'']]
 
  
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Latest revision as of 15:01, 16 February 2024



Division D - Construction Details

EPDM | Membrane Termination A (Wall) ( Article 10.3.2.3.)

Notice to Reader
Images used in a Construction Detail are representative and not prescriptive, and are not necessarily drawn to scale. They are intended to support the related Standard (Ref. Division A, Article 2.2.1.2.).

The reader may link to the related Article in the detail title, or link to the Standard as it relates to a specific element in the detail. All hyperlinks are displayed blue text.

EPDM Details


10.3.2.3.-EPDM-A.png

Drawing NTS

1 WORK INCLUDED

(1) Air/Vapour Control Layers
As specified by the Design Authority and installed to provide continuity for optimal control.
(2) Insulation
Installed in keeping with Section 7.3. Multiple layering illustrated; layers must be offset and staggered at least 304.8 mm (12”) in each direction.
(3) Insulation Overlay Panel
Required for fully adhered membrane systems or when overburden is specified. Panels must be offset and staggered from underlying insulation panels.
(4) Field Membrane
See Table 9.2. for permissible application methods and corresponding membrane properties. Membrane must be installed according to the requirements in Section 9.3.
(5) Edge Securement
Proprietary to the membrane manufacturer. Edge securement is required, irrespective of how the membrane is applied (i.e., adhered, self-adhered, mechanically fastened).
(6) Mechanical Fastening
Edge securement must be anchored to the roof structure to prevent membrane movement.
(7) Primer or Adhesive
Proprietary to the membrane manufacturer. Primer may be required for self-adhered membranes; adhesive is required for all other applications. All membranes applied to the vertical substrate must be fully adhered.
(8) Membrane Flashing
May be run continuously up the vertical substrate from the field or installed as separate flashing (see membrane manufacturer requirements). Membrane shall be carried up the vertical substrate at least 203.2 mm (8”) above the finished roof system surface, plus at least 76.2 mm (3”) for wall control layer overlap. In regions where heavy snow accumulation is possible, or to accommodate future roof membrane replacement, membrane should be carried at least 304.8 mm (12”) up the vertical substrate.
(9) Rigid Support for Through-wall Flashing (optional)
Where the wall is insulated on the exterior side of the structure, continuity of air and vapour controls must be protected from future damage during roof replacement. This can be done by securing a suitable membrane receiver panel against the insulation. The panel must be permanently affixed to the structure through the insulation. During replacement of the roof membrane, membrane flashing may be removed from the receiver panel without disturbing the insulation and control layers. In this way, material waste is also reduced.
Where the membrane may not easily separate from its receiver during roof replacement, a second panel (not illustrated) can be screw-fastened to the first. During replacement, both the membrane and the secondary panel may be removed together, simplifying membrane replacement.
(10) Membrane Flashing Substrate
Continuity of the water-resistive barrier means it must pass through the insulation assembly installed on the exterior side of the wall structure. To do that, a membrane flashing passes through the insulation where the roof system terminates. Blocking or another suitable support (i.e., hat track) is necessary to support the membrane and its linear metal flashing carrier. Wood blocking illustrated.
(10) Through-wall Flashing
A self-adhered membrane is used to transition from the wall to the roofing assembly, providing a continuous drainage path for water. Secure the linear metal flashing to the support underneath (see Item 9 or 10 above).
Note that the water resistive barrier membrane from the wall (installed by others – see Related Work below) overlaps the through-wall flashing (installed by the Contractor) and is supported by a metal flashing with drip edge, to direct water from the wall to the roof surface.

2 RELATED WORK BY OTHERS

(A) Acceptable Deck
Illustrated deck is representative. See Sub-section 2.1.5. for acceptable deck types and conditions.
(B) Wall Structure
Illustrated wall is representative. Wall control layers (i.e., water resistive barrier) must overlap roofing system to achieve continuity. See Sub-section 2.1.7. for wall conditions.
(C) Wall System Finish
Illustrated system is representative and shows water-resistive barrier overlapping roof membrane (See above, Item 8).

NOTE: See the EPDM Roof Systems Standard for additional requirements.

Back to EPDM Roof System Details

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