Protected and Modified Protected Roof Systems - Revision history

James Klassen: /* Ballast */

2024-08-15T18:14:29Z

‎Ballast

2021-09-09T16:21:46Z

‎Resistance to Wind Loads

2021-09-09T15:45:31Z

2021-09-03T21:17:36Z

‎Resistance to Wind Loads

2021-09-03T21:17:22Z

2021-09-03T21:08:19Z

2021-07-26T20:26:58Z

2020-11-05T18:13:56Z

‎Ballast

2020-09-22T21:33:23Z

2020-06-17T21:39:32Z

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 ===Ballast===
-The building structure must be designed to support the weight of the ballast or surface treatment and other superimposed loads on the roof.
+Refer to Article 3.1.6.1. in the specific waterproofing roof Standard, in Division B of this ''Manual''.
 ====Resistance to Wind Loads====

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 ====Resistance to Wind Loads====
-Roof corners subject to high winds or gusts may scour the stone ballast. Parapets and / or paving slabs can be used where necessary to prevent scouring. For more on this subject, refer to [http://rpm.rcabc.org/index.php?title=Division_D:_Waterproofing_Systems_(Roofs) '''Division D: Waterproofing Systems (Roofs)'''] and consult Part 3 and Part 12 of the Waterproofing System standard for the specific type of membrane roof.
+Roof corners subject to high winds or gusts may scour the stone ballast. Parapets and / or paving slabs can be used where necessary to prevent scouring. For more on this subject, read [https://rpm.rcabc.org/index.php?title=Securing_the_Roof_Assembly '''Securing the Roof Assembly'''], and refer to Part 3 and Part 12 of the specific Standard, located in [[Division B | '''Division B: Standards''']].
 The membrane will withstand the National Building Code (Canada) calculated pressure if it is properly attached to the deck. In the case of a loose applied membrane it is important to prevent any air infiltration underneath the membrane. Indeed, when air infiltration is restricted, any movement of the membrane will create a vacuum which will neutralize the uplift forces and keep the membrane on the deck.

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-| colspan="2"  | '''NOTICE TO READER''': This is an <u>information page only</u>.  To read the standards applicable to a particular Waterproofing or Water-shedding System, refer to the actual '''''RoofStar Guarantee Standards''''' located in [http://rpm.rcabc.org/index.php?title=Division_D:_Waterproofing_Systems_(Roofs)  '''Division D: Waterproofing Systems (Roofs)'''], [http://rpm.rcabc.org/index.php?title=Division_E:_Water-shedding_Systems '''Division E: Water-shedding Systems'''] or [http://rpm.rcabc.org/index.php?title=Division_F:_Grade-level_Waterproofing '''Division F: Grade-level Waterproofing'''].
+| colspan="2"  | '''NOTICE TO READER''': This is an <u>information page only</u>.  To read the standards applicable to a particular Waterproofing or Water-shedding System, refer to the actual Standard located in [[Division B | '''Division B''']].
 |}

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 {{hilite | For an engineered design approach, consult the [http://rpm.rcabc.org/images/2/2f/Dupont_508.2_Ballast_Design_Guide_for_PMR_Systems_%282020-02%29.pdf '''Dupont Tech Solutions 508.2 Ballast Design Guide for PMR Systems'''] for PMRA roof systems.  The resource is provided for reference purposes only. || 2018-January-25 }}
-===='''Resistance to Wind Loads'''====
+====Resistance to Wind Loads====
 Roof corners subject to high winds or gusts may scour the stone ballast. Parapets and / or paving slabs can be used where necessary to prevent scouring. For more on this subject, refer to [http://rpm.rcabc.org/index.php?title=Division_D:_Waterproofing_Systems_(Roofs) '''Division D: Waterproofing Systems (Roofs)'''] and consult Part 3 and Part 12 of the Waterproofing System standard for the specific type of membrane roof.

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 Tunnel tests done at the National Research Council Canada show that the suction applied to the insulation boards is much lower than the calculated pressure applied to the membrane because of the rapid pressure equalization between the top and the bottom surfaces of the boards. This reduced pressure is insufficient to uplift insulation covered with 50 kg / m<sup>2 </sup>(10 lb. / sq. ft.) of ballast.
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-[[Division B: Essential Elements|<i class="fa fa-chevron-circle-left" ></i> ''Division B: Essential Elements'']]
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-<big>'''NOTE TO READER: Where applicable, the content of this page is replicated in the ''RoofStar Guarantee Standards'' sections of this Manual'''</big>
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 ===General===

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+[[Division B: Essential Elements|<i class="fa fa-chevron-circle-left" ></i> ''Division B: Essential Elements'']]
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