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<!-- DFS ActiveDisclosure(SM) XBRL Schema Document - http://www.dfsco.com/financial-services/ -->
<!-- Creation Date      : 2018-11-20T04:25:15.0512354+00:00 -->
<!-- Version            : 3.1.6886.5209 -->
<!-- Package ID         : 31e739d2341e4b4d82984d4fdfde4f5c -->
<!-- Copyright (c) 2018 Donnelley Financial, LLC. All Rights Reserved. -->
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  <element id="becn_GoodwillAmortizableForIncomeTax" name="GoodwillAmortizableForIncomeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="becn_ResidentialRoofingProductsMember" name="ResidentialRoofingProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="becn_NonresidentialRoofingProductsMember" name="NonresidentialRoofingProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="becn_ComplementaryBuildingProductsMember" name="ComplementaryBuildingProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="becn_SupplementalGuarantorInformationAbstract" name="SupplementalGuarantorInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="becn_EliminationsAndOtherMember" name="EliminationsAndOtherMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="becn_DefinedContributionPlanServicePeriod" name="DefinedContributionPlanServicePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="becn_DefinedContributionPlanQualifyingAge" name="DefinedContributionPlanQualifyingAge" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="becn_DefinedContributionPlanMinimumAnnualContributionsPerEmployeePercent" name="DefinedContributionPlanMinimumAnnualContributionsPerEmployeePercent" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="becn_DefinedFirstFiftyPercentageOfParticipantContributionPlanEmployerMatchingContribtionPercentOfMatch" name="DefinedFirstFiftyPercentageOfParticipantContributionPlanEmployerMatchingContribtionPercentOfMatch" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="becn_MultiEmployerDefinedBenefitPlansAggregatedExpense" name="MultiEmployerDefinedBenefitPlansAggregatedExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
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  <element id="becn_DerivativeAmortizationFrequency" name="DerivativeAmortizationFrequency" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="becn_InterestRateSwapFixedRateOfOnePointThreeEightPercentMember" name="InterestRateSwapFixedRateOfOnePointThreeEightPercentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
</schema>


