Difference between revisions of "Draft CD 1"

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| colspan="2"  | <big>'''''Notice to Reader'''''</big>
 
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| style="color: black; background-color: #ffffcc; width: 100%;text-align:center" | Images used in a Construction Detail are representative and <u>not intended in their representation of an assembly to be prescriptive</u>.  Nor are they necessarily drawn to scale. Rather, they are provided to visually convey the Standards, Guiding Principles and Recommendations of the '''RoofStar Guarantee Standards''' for a Waterproofing or Water-shedding System. Actual design with respect to dimensions, the selection of materials and their application remains the responsibility of the ''Design Authority''.<br><br>The full text of applicable '''''RoofStar Guarantee Standards''''' may be read by using the <span style="color:#6495ed">'''blue hyperlinks'''</span>
 
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__NOTOC__
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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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{{Template:Construction Details Header}}
 
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<div class="panel-heading"><big>'''ASM Details'''</big></div>
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<div class="panel-heading"><big>'''EPDM Details'''</big></div>
 
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[[File:ASM 8.1.1 Eave Protection and Underlayment.jpg |class=img-responsive | link=http://rpm.rcabc.org/images/b/bb/ASM_8.1.1_Eave_Protection_and_Underlayment.jpg]]
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<br>
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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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:Drawing NTS
 
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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
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;(1) Metal flashing underlayment/separation membrane: required for metal flashings installed on wood substrates.
 
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;(2) '''Edge Metal Flashing''': Installed to manufacturer's printed instructions.
 
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;(3) [[RoofStar Guarantee Standards for ASM Roof Assemblies#ASMICE|'''Ice and Water Protection''']]: One ply of accepted self-adhered modified bituminous membrane.
 
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;(4) [[RoofStar Guarantee Standards for ASM Roof Assemblies#ASMUNDERLAYMENT|'''Underlayment''']]: Proprietary underlayment installed perpendicular to the slope with 50 mm (2") minimum side laps and 100 mm (4") minimum end laps.
 
  
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:'''Note:'''
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;(1) [[EPDM Roof Systems Standard#PART_6|<big>Air/Vapour Control Layers</big>]]:
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* This application pertains only to slopes 1:3 (4" in 12") or greater.  For slopes less than 1:3, see Construction Detail '''ASM 8.1.2'''.
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:As specified by the ''Design Authority'' and installed to provide continuity for optimal control.
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* Slip sheet not shown for clarity
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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) [[RoofStar Guarantee Standards for ASM Roof Assemblies#ASMDECK|'''Acceptable Deck''']]
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;(A) [[EPDM Roof Systems Standard#PART_2|<big>Acceptable Deck</big>]]
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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''': See the [[EPDM Roof Systems Standard | '''EPDM Roof Systems Standard''']] for additional requirements.
  
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'''NOTE''': Refer to '''''RoofStar Guarantee Standards''''' for additional requirements.
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<hr>
  
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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 Architectural Sheet Metal (ASM) Systems|<i class="fa fa-chevron-circle-right fa" ></i> RoofStar Guarantee Standards for Architectural Sheet Metal (ASM) Systems]]
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[[Main Page | <i class="fa fa-home fa"></i> Home]]
  
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[[Architectural Sheet Metal Construction Details|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''ASM 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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