Template:PERIMETER FLASHINGS - METAL (EPDM, TPO) - Revision history

James Klassen: /* Attachment */

2018-03-07T22:01:02Z

‎Attachment

James Klassen: /* Flashing on Stucco Walls */

2018-02-09T22:44:36Z

‎Flashing on Stucco Walls

James Klassen: /* Cap Flashings, Base Flashings and Reglets */

2017-01-27T17:16:25Z

‎Cap Flashings, Base Flashings and Reglets

James Klassen: /* Cap Flashings, Base Flashings and Reglets */

2017-01-27T17:15:21Z

‎Cap Flashings, Base Flashings and Reglets

James Klassen: /* Attachment */

2016-11-16T22:45:32Z

‎Attachment

James Klassen: /* General */

2016-10-17T21:02:20Z

‎General

James Klassen: /* Cap Flashings, Base Flashings and Reglets */

2016-10-17T21:00:59Z

‎Cap Flashings, Base Flashings and Reglets

James Klassen: /* Cap Flashings, Base Flashings and Reglets */

2016-10-17T21:00:07Z

‎Cap Flashings, Base Flashings and Reglets

James Klassen at 15:50, 29 September 2016

2016-09-29T15:50:39Z

James Klassen: /* General */

2016-09-15T13:50:19Z

‎General

@@ Line 35: / Line 35: @@
 === Attachment ===
-The use of concealed in-seam fasteners is required. {{hilite | Metal flashings end joint S-lock seams must have a minimum 1 screw type faster every 200 mm (8”). For standing seam applications, clips must be a minimum 24 gauge in thickness, 38 mm (1-1/2”) wide, each secured with minimum 2 screws, and placed a minimum of 1 clip every 200 mm (8”). Fasteners must have a low-profile head and penetrate the substrate a minimum of 19 mm (3/4”). || 2017-September-28 }}
+The use of concealed in-seam fasteners is required. {{hilite | Metal flashings end joint S-lock seams must have a minimum 1 screw type fastener every 200 mm (8”). For standing seam applications, clips must be a minimum 24 gauge in thickness, 38 mm (1-1/2”) wide, each secured with minimum 2 screws, and placed a minimum of 1 clip every 200 mm (8”). Fasteners must have a low-profile head and penetrate the substrate a minimum of 19 mm (3/4”). || 2017-September-28 }}
 Any {{hilite | exposed || 2017-September-28 }} fastening of metal flashings on the top of parapet surfaces is strongly discouraged and is not permitted as the only attachment method.

← Older revision		Revision as of 22:44, 9 February 2018
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	=== Flashing on Stucco Walls ===		=== Flashing on Stucco Walls ===

−	On stucco-faced walls, only 2-piece flashings are permitted. The ~~upper~~ piece, retaining the stucco, must have a vertical flange to extend behind stucco and building paper. Stucco stops are not considered metal counter flashings (for cross-reference, see [[SBS Details:D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)\|'''D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)''']]).	+	On stucco-faced walls, only 2-piece flashings are permitted. The lower piece, retaining the stucco, must have a vertical flange to extend behind stucco and building paper. Stucco stops are not considered metal counter flashings (for cross-reference, see [[SBS Details:D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)\|'''D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)''']]).

@@ Line 77: / Line 77: @@
 The top surface of walls (parapets, expansion joints, firewalls, roof dividers, etc.) wider than 100 mm (4" nominal) shall be constructed to provide positive slope to drain and be covered with metal cap flashing. Provide a reglet for all flashings terminating in concrete or masonry walls. When wall flashing terminates in a reglet, typically on high parapet walls, a coping flashing is required at the top of the parapet wall (for cross-reference, see SBS detail [[SBS Details:D1.7.4 Parapets & Copings (Low Parapet - Unsupported by Wall)|'''D1.7.4 Parapets & Copings (Low Parapet - Unsupported by Wall''')]]). On new construction projects reglet and sloped wood blocking at top surface of concrete or masonry walls are to be installed by others.
-<div class="principles">On flexible membrane conventional roofing systems, when metal wall or curb base flashings are not specified, both the '''''RoofStar Guarantee''''' Accepted Materials and manufacturer's approved wall or curb stripping membranes are acceptable when used with a secondary metal counter flashing placed a maximum of 250 mm (10") above the surface of the roof assembly. Stucco stops are not considered secondary metal counter flashing (for cross-reference, see [[SBS Details:D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)|'''D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)''']]).</div>
+<p class="principles">On flexible membrane conventional roofing systems, when metal wall or curb base flashings are not specified, both the '''''RoofStar Guarantee''''' Accepted Materials and manufacturer's approved wall or curb stripping membranes are acceptable when used with a secondary metal counter flashing placed a maximum of 250 mm (10") above the surface of the roof assembly. Stucco stops are not considered secondary metal counter flashing (for cross-reference, see [[SBS Details:D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)|'''D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)''']]).</p>
 Metal base flashing is required on all vertical surfaces, walls, curbs, etc. when hot asphalt is used to adhere stripping (flashing) membranes.

@@ Line 79: / Line 79: @@
 <div class="principles">On flexible membrane conventional roofing systems, when metal wall or curb base flashings are not specified, both the '''''RoofStar Guarantee''''' Accepted Materials and manufacturer's approved wall or curb stripping membranes are acceptable when used with a secondary metal counter flashing placed a maximum of 250 mm (10") above the surface of the roof assembly. Stucco stops are not considered secondary metal counter flashing (for cross-reference, see [[SBS Details:D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)|'''D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)''']]).</div>
-Metal base flashings are required on all walls and curbs on roof systems that utilize gravel ballast filter mats. Metal base flashings on protected and modified protected membrane roofs must “kick out” minimum 50 mm (2") over insulation and filter fabric. (for cross-reference, see [[SBS Details:D1.7.2 Assemblies (Protected Membrane)|'''D1.7.2 Assemblies (Protected Membrane)''']]).
+Metal base flashing is required on all vertical surfaces, walls, curbs, etc. when hot asphalt is used to adhere stripping (flashing) membranes.
 Neither 90-lb mineral roofing nor asphalt strip-type shingles are acceptable as parapet flashing in lieu of sheet metal flashing.
@@ Line 86: / Line 90: @@
 In the case of multi-wythe masonry, composite walls, or parapets, and where not restricted by seismic codes, continuous flexible thru-wall flashings must be supplied and installed (by others), at the next course above the reglet or, alternatively, the inside of the parapet wall must be completely flashed or cladded.
 <div class="principles">Gum edge or gum lip flashings should be avoided in all circumstances. If job conditions allow for no other alternative, written permission from the '''''RoofStar Guarantee Program''''' for use of gum edge flashing must be obtained (also called surface reglet) (for cross-reference, see [[SBS Details:D1.7.13 Counter-flashings & Reglets (Double Surface Reglet)|'''D1.7.13 Counter-flashings & Reglets (Double Surface Reglet)''']]).</div>

@@ Line 35: / Line 35: @@
 === Attachment ===
-The use of concealed in-seam fasteners is required. Any fastening of metal flashings on the top of parapet surfaces is strongly discouraged and is not permitted as the only attachment method.
+The use of concealed in-seam fasteners is required. {{hilite | Metal flashings end joint S-lock seams must have a minimum 1 screw type faster every 200 mm (8”). For standing seam applications, clips must be a minimum 24 gauge in thickness, 38 mm (1-1/2”) wide, each secured with minimum 2 screws, and placed a minimum of 1 clip every 200 mm (8”). Fasteners must have a low-profile head and penetrate the substrate a minimum of 19 mm (3/4”). || 2017-September-28 }}
-If top-surface fastening must be used because of a specific job site condition, only appropriate screw-type fasteners with neoprene washers may be used. Nails are not acceptable.
+Any {{hilite | exposed || 2017-September-28 }} fastening of metal flashings on the top of parapet surfaces is strongly discouraged and is not permitted as the only attachment method.
 The outside and inside face of metal cap flashing must be attached with cladding fasteners (screws), and/or concealed clips. Continuous and discontinuous concealed clips and or cladding screw fasteners or a combination of these attachment methods are acceptable to secure metal cap flashing. No fastening of flashing is permitted within 87.7 mm (3 ½") of the roof surface. Note: Cladding fasteners or concealed clips are not required on the inside face of roof edge cant strip details.

@@ Line 8: / Line 8: @@
 <span class="principles">Gravel stop-type flashings may be used, provided manufacturer's printed instructions are followed</span> (see Section reference, if required).<span class="reference">  The exceptions are overflow drains and roof scuppers that are installed through walls. These items are to be located by others.</span>
-<p class="reference">Sheet metal flashings are designed to divert water away from the membrane flashing termination, usually onto the roof. The metal flashing also protects the membrane from deterioration due to the elements and from mechanical damage. The metal flashing is not a waterproofing membrane, therefore the roofing membrane should be continuous under the metal (see details Section reference needed, and RGC Guarantee Standards for requirements).</p>
+<p class="reference">Sheet metal flashings are designed to divert water away from the membrane flashing termination, usually onto the roof. The metal flashing also protects the membrane from deterioration due to the elements and from mechanical damage. The metal flashing is not a waterproofing membrane, therefore the roofing membrane should be continuous under the metal.</p>
 <p class="reference">For further details, the Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA) publishes a reliable reference for the proper design and installation of architectural sheet metal. The Architectural Sheet Metal Manual is available from:

@@ Line 87: / Line 87: @@
 Metal base flashing is required on all vertical surfaces, walls, curbs, etc. when hot asphalt is used to adhere stripping (flashing) membranes.
-<div class="principles">Gum edge or gum lip flashings should be avoided in all circumstances. If job conditions allow for no other alternative, written permission from RGC for use of gum edge flashing must be obtained (also called surface reglet) (for cross-reference, see [[SBS Details:D1.7.13 Counter-flashings & Reglets (Double Surface Reglet)|'''D1.7.13 Counter-flashings & Reglets (Double Surface Reglet)''']]).</div>
+<div class="principles">Gum edge or gum lip flashings should be avoided in all circumstances. If job conditions allow for no other alternative, written permission from the '''''RoofStar Guarantee Program''''' for use of gum edge flashing must be obtained (also called surface reglet) (for cross-reference, see [[SBS Details:D1.7.13 Counter-flashings & Reglets (Double Surface Reglet)|'''D1.7.13 Counter-flashings & Reglets (Double Surface Reglet)''']]).</div>
 === Flashing on Stucco Walls ===
 On stucco-faced walls, only 2-piece flashings are permitted. The upper piece, retaining the stucco, must have a vertical flange to extend behind stucco and building paper. Stucco stops are not considered metal counter flashings (for cross-reference, see [[SBS Details:D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)|'''D1.7.11 Counter-flashings & Reglets (Stucco Wall: Re-roofing)''']]).

← Older revision		Revision as of 15:50, 29 September 2016
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		+	__NOTOC__
	=== General ===		=== General ===

← Older revision		Revision as of 13:50, 15 September 2016
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	<p class="reference">Sheet metal flashings are designed to divert water away from the membrane flashing termination, usually onto the roof. The metal flashing also protects the membrane from deterioration due to the elements and from mechanical damage. The metal flashing is not a waterproofing membrane, therefore the roofing membrane should be continuous under the metal (see details Section reference needed, and RGC Guarantee Standards for requirements).</p>		<p class="reference">Sheet metal flashings are designed to divert water away from the membrane flashing termination, usually onto the roof. The metal flashing also protects the membrane from deterioration due to the elements and from mechanical damage. The metal flashing is not a waterproofing membrane, therefore the roofing membrane should be continuous under the metal (see details Section reference needed, and RGC Guarantee Standards for requirements).</p>
−
−	<div class="principles">Metal flashing is essential to complete most waterproofing and roofing applications and attention to detail is critical. Some basic rules to observe when designing or installing metal flashings are:</div>
−
−	* <p class="principles">only “S-lock” or “standing seams” are permitted (see Section reference needed)</p>
−	* <p class="principles">metal counter flashings always go on top of the completed roof membrane</p>
−	* <p class="principles">limit metal flashing lengths to 3.04 m (10' )</p>
−	* <p class="principles">extend base flashing down over membrane flashing at cants to minimum 25 mm (1") above roof membrane surface. (Not applicable to protected membrane roof assemblies.)</p>

	<p class="reference">For further details, the Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA) publishes a reliable reference for the proper design and installation of architectural sheet metal. The Architectural Sheet Metal Manual is available from:		<p class="reference">For further details, the Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA) publishes a reliable reference for the proper design and installation of architectural sheet metal. The Architectural Sheet Metal Manual is available from: