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Treated Wood and Treated Wood and DesignDesign
PreparedPrepared by the Western Wood Preservers Instituteby the Western Wood Preservers Institutepp yyPresented by Presented by Eddy Eddy Longshore To Woodworks Longshore To Woodworks Wood Solutions Fair Wood Solutions Fair
Charlotte, NC Wednesday January 29, 2014Charlotte, NC Wednesday January 29, 2014
“The Wood Products Council” is a Registered Provider with TheThe Wood Products Council is a Registered Provider with TheAmerican Institute of Architects Continuing Education Systems (AIA/CES). Credit(s) earned on completion of this
program will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are
available upon request.
Thi i i d i h AIA/CES f i i f i lThis program is registered with AIA/CES for continuing professionaleducation. As such, it does not include content that may be deemed
or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling usingmaterial of construction or any method or manner of handling, using,
distributing, or dealing in any material or product.
Q ti l t d t ifi t i l th d d i illQuestions related to specific materials, methods, and services willbe addressed at the conclusion of this presentation.
Copyright Materials
This presentation is protected by US and International Copyright laws. Reproduction,International Copyright laws. Reproduction,
distribution, display and use of the presentation without written permission of the speaker is
prohibitedprohibited.
© The Wood Products Council 2014© The Wood Products Council 2014
Learning ObjectivesLearning ObjectivesLearning ObjectivesLearning Objectives
At the end of this program, participants will be able to:
1. Participants will learn how to specify pressure treated wood products using the American
Wood Protection Association's Use Category System.
2. Participants will learn where pressure treated wood is required under the International
Building Code and under the Residential Building Code.
3. Participants will learn Western Wood Preservers Institute Best Management Practices
regarding the use of treated wood in aquatic and other sensitive environments
4. Participants will develop an understanding of Interior and Exterior Fire Retardant
Applications and be provided with a AWPA Use Specification Guide, WWPI's Aquatic
Guide, Best Management Practices and a list of resources where they can find more
information on pressure treated and fire retardant treated wood products.
Copyright Materials
This presentation is protected by US and International Copyright laws. Reproduction,
di t ib ti di l d f th t tidistribution, display and use of the presentationwithout written permission of the speaker is
prohibited.
© Western Wood Preservers Institute 2013
W t W d P I tit tW t W d P I tit tWestern Wood Preservers InstituteWestern Wood Preservers Institute
T d A i tiT d A i tiTrade AssociationTrade AssociationWood TreatersWood TreatersSupportingSupporting IndustryIndustry
WWPI’s MissionWWPI’s Mission
Provide Educational Information toProvide Educational Information toov de ducat o a o at o toov de ducat o a o at o toIncrease Awareness of Properly Treated Increase Awareness of Properly Treated Wood Products to:Wood Products to:Wood Products to:Wood Products to:
HomeownersHomeownersBuildersBuildersBuildersBuildersArchitects, Specifiers, DesignersArchitects, Specifiers, DesignersB ildi M t i l D lB ildi M t i l D lBuilding Material DealersBuilding Material DealersBuilding Code Building Code OfficialsOfficialsPorts & MarinasPorts & Marinas
W dW d thth R l R blR l R blWoodWood -- thethe Real RenewableReal RenewableBuilding ProductBuilding ProductBuilding ProductBuilding Product
88
Treated Wood Products are GreenTreated Wood Products are GreenEnvironmental Life Cycle AssessmentEnvironmental Life Cycle AssessmentEnvironmental Life Cycle AssessmentEnvironmental Life Cycle Assessment
Greenhouse Gas:Treated wood has lower atmospheric greenhouse gas levels (-789lb-p g g (
CO2-eq) than galvanized steel (1,725lb-CO2-eq), fiber-reinforced composite (1,908lb-CO2-eq) and concrete (3,213lb-CO2-eq) products.
Fossil Fuel Use:Fossil Fuel Use:Treated wood uses less fossil fuel energy (4.1MMBTU) than galvanized
steel (8.4MMBTU), fiber-reinforced composite (10MMBTU), and concrete (16MMBTU) products(16MMBTU) products.
Total Energy Input:Treated wood requires less total energy (7MMBTU) than galvanized steel
(10MMBTU), fiber-reinforced composite (11MMBTU), and concrete (17MMBTU) products.
Water Use:
99
Water Use:Treated wood requires less water (46gal) than galvanized steel (106gal), concrete (180gal), and fiber-reinforced composite (1,248gal) products.
Treated Wood is SustainableTreated Wood is SustainableINPUTS:INPUTS:INPUTS:INPUTS:
••SeedSeed••SoilSoil
••WaterWater••SunSun••COCO22COCO
3030 to 80 years of Forest Managementto 80 years of Forest ManagementOUTPUTS:OUTPUTS:OUTPUTS:OUTPUTS:
•• OxygenOxygen•• HabitatHabitat
St d C bSt d C b•• Stored CarbonStored Carbon••Mature ForestMature Forest••Wood Wood ProductsProducts
1010
By the time your product has served its life, a new By the time your product has served its life, a new one will be grown and ready to replace it.one will be grown and ready to replace it.
Pressure Treated Wood Pressure Treated Wood as a as a Building MaterialBuilding Material
More than 90More than 90% of all homes % of all homes are built are built with woodwith wood..
Less than 6% of all wood Less than 6% of all wood products are pressure treated.products are pressure treated.
ProblemProblemWood is Wood is
Threatened by:Threatened by:Threatened by:Threatened by:Carpenter AntsCarpenter Antspp
Wood boring Wood boring
beetlesbeetles
TermitesTermites
DecayDecay FungiFungiDecayDecay FungiFungi
Fire Fire
Wood Durability Wood Durability vs. Woodvs. Wood--Destroying OrganismsDestroying OrganismsDestroying OrganismsDestroying Organisms
A complex issue, impactingA complex issue, impactingHomeownersHomeownersArchitects,Architects, Engineers, Engineers, DesignersDesignersBuilders, Developers, RealtorsBuilders, Developers, RealtorsLenders, Insurance Lenders, Insurance CompaniesCompanies,, ppBuilding Code OfficialsBuilding Code OfficialsPest Control IndustryPest Control Industryest Co t o dust yest Co t o dust y
Termites Termites cause over $5 cause over $5 billibilli th f d hth f d hbillionbillion worth of damage eachworth of damage each
year in America. year in America.
Some examples of damageSome examples of damagep gp g
Exposure to Moisture Exposure to Moisture D F i & R t i W dD F i & R t i W dDecay Fungi & Rot in WoodDecay Fungi & Rot in Wood
WhWhWhenWhenyouyouyouyou
finallyfinallyseesee it…it…
it’s usually too lateit’s usually too lateit s usually too lateit s usually too late
Sometimes much too late…Sometimes much too late…
TheThe SolutionSolutionT t th d ith ti iT t th d ith ti i th tth tTreat the wood with preservatives inTreat the wood with preservatives in the outerthe outershell of the wood shell of the wood to repel to repel and protect the and protect the
d fd f i b i ti b i t d dd dwood fromwood from marine borers, insectsmarine borers, insects and decayand decay..ResultResult: Service life measured in decades, not : Service life measured in decades, not years.years.ReliableReliable physical and mechanicalphysical and mechanical propertiespropertiesReliableReliable physical and mechanicalphysical and mechanical properties.properties.ItIt is readily available, is readily available, safe, easy safe, easy to work with, to work with,
d td t ff tiff tiand costand cost effective.effective.
2121Treated Shell
American Wood Protection American Wood Protection AssociationAssociation
Founded in 1904Founded in 1904Founded in 1904Founded in 1904International, nonprofit technical societyInternational, nonprofit technical societyStandards writing organization for the woodStandards writing organization for the woodStandards writing organization for the woodStandards writing organization for the woodpreserving industry in U.S.preserving industry in U.S.Provides a technical forum for industry research andProvides a technical forum for industry research andProvides a technical forum for industry, research andProvides a technical forum for industry, research andusers.users.Protects consumers by ensuring uniform productProtects consumers by ensuring uniform productProtects consumers by ensuring uniform productProtects consumers by ensuring uniform productperformance.performance.Reference in all building codes.Reference in all building codes.Reference in all building codes.Reference in all building codes.Updated Annually Updated Annually -- Currently the 2013 EditionCurrently the 2013 Edition
American Wood Protection American Wood Protection AssociationAssociation
Determines if a preservative is Determines if a preservative is effective effective and andppcan be listed in the standards.can be listed in the standards.Establishes how much of the preservative is Establishes how much of the preservative is ppneeded (retention) depending upon the needed (retention) depending upon the exposure and use. May vary from exposure and use. May vary from 0.25lbs/ft0.25lbs/ft33
to several pounds per cubic foot of the treated to several pounds per cubic foot of the treated shell.shell.
2323
IndustryIndustry seeks to minimize chemicals throughseeks to minimize chemicals throughlower retentionslower retentions..
Who Determines If Wood Preservatives AreWho Determines If Wood Preservatives AreWho Determines If Wood Preservatives AreWho Determines If Wood Preservatives AreSafe For People And The Environment?Safe For People And The Environment?
All Wood Preservatives Must be All Wood Preservatives Must be Registered.Registered.
Th U S E i l P iTh U S E i l P iThe U.S. Environmental ProtectionThe U.S. Environmental ProtectionAgencyAgency. (EPA). (EPA)Regulated & Controlled Industry.Regulated & Controlled Industry.Regulated & Controlled Industry.Regulated & Controlled Industry.
Detailed Risk Reviews for Human Detailed Risk Reviews for Human Health and Environmental Impacts.Health and Environmental Impacts.ppProductProduct Labels Designate Labels Designate in What in What Building Applications the Treated Building Applications the Treated
2424
Wood May Be Wood May Be Used.Used.
How is Wood Pressure Treated?How is Wood Pressure Treated? How is Lumber and Plywood P T t d?
How is Lumber and Plywood P T t d?Pressure Treated?Pressure Treated?
Typical treating plantTypical treating plantPreservative,Mix and
Typical treating plantTypical treating plant
Mix and Water StorageStorageTanks.
Treating Cylinder
Practices to Enhance the Treating Practices to Enhance the Treating f S if S iProcess for Western SpeciesProcess for Western Species
I i iI i iIncisingIncisingPrePre--DrillingDrillingDrying PriorDrying Priorto Treatmentto Treatment
How is Lumber and PlywoodHow is Lumber and PlywoodHow is Lumber and PlywoodHow is Lumber and PlywoodyyPressure Treated?Pressure Treated?
yyPressure Treated?Pressure Treated?
Western Species MUST be Incised.
A series of incisor knives are mounted on A series of incisor knives are mounted on drums.drums.
The drums rotate drawing the wood thru the incisor.
The minimum number of incisions is 750 per squareThe minimum number of incisions is 750 per squareThe minimum number of incisions is 750 per squareThe minimum number of incisions is 750 per squarefoot.foot.
How is Lumber and PlywoodHow is Lumber and PlywoodHow is Lumber and PlywoodHow is Lumber and PlywoodyyPressure Treated?Pressure Treated?
yyPressure Treated?Pressure Treated?
Wood Is Loaded on T d I t d
Cylinder Door Is Closed d V PTrams and Inserted
Into Cylinderand Vacuum-PressureTreating Cycle Begins
Pressure Treatment ProcessPressure Treatment ProcessPressure Treatment ProcessPressure Treatment Process
Dry wood is loaded into cylinder
Initial vacuum pulls out air
Liquid preservative chemicals fill cylinder
Pressure Treatment ProcessPressure Treatment ProcessPressure Treatment ProcessPressure Treatment Process
Pressure forces preservative chemicals into wood
Remaining liquid emptied for later use
Final vacuum removes excess liquid
Pressure Treatment ProcessPressure Treatment ProcessPressure Treatment ProcessPressure Treatment Process
Pressure Treatment ProcessPressure Treatment ProcessPressure Treatment ProcessPressure Treatment Process Preservative FamiliesPreservative FamiliesOilOil--Type & WaterborneType & Waterborne
WWPI Members Produce Only Products that WWPI Members Produce Only Products that are Listed in AWPA Standardsare Listed in AWPA StandardsSPTASPTA Members Produce Members Produce Products Products that are that are Listed in AWPA Standards or ICC EvaluationListed in AWPA Standards or ICC EvaluationListed in AWPA Standards or ICC EvaluationListed in AWPA Standards or ICC EvaluationService CriteriaService CriteriaRegardless All Products are Inspected by 3Regardless All Products are Inspected by 3rdrdRegardless All Products are Inspected by 3Regardless All Products are Inspected by 3rdrd
Party Accredited AgenciesParty Accredited Agencies
W t bW t b P tiP tiWaterborneWaterborne PreservativesPreservatives
ACQACQ –– Alkaline Copper Alkaline Copper QuatQuatACZA (ACZA (ChemoniteChemonite)) –– AmmoniacalAmmoniacalACZA (ACZA (ChemoniteChemonite)) AmmoniacalAmmoniacalCopper Zinc ArsenateCopper Zinc ArsenateBoratesBoratesBoratesBoratesCACA--CC –– Copper AzoleCopper AzoleCCACCA –– ChromatedChromated Copper ArsenateCopper ArsenateMCQ & MCA MCQ & MCA -- Micronized CopperMicronized CopperQQ ppppNon Metal Preservatives Non Metal Preservatives –– PTI & ELPTI & EL22
ACQACQACQACQ“Preserve Wood” & “Nature’s Wood”“Preserve Wood” & “Nature’s Wood”
Douglas fir / Hem fir / Southern Yellow PineDouglas fir / Hem fir / Southern Yellow PineAWPA B k f St d dAWPA B k f St d dAWPA Book of StandardsAWPA Book of Standards
ICC Evaluation Service ReportICC Evaluation Service ReportGround & Fresh Water ContactGround & Fresh Water Contact
ACZAACZAACZAACZA““ChemoniteChemonite””
Douglas fir / Southern Yellow PineAWPA Book of Standards
SBXSBX -- BoratesBoratesSBXSBX BoratesBoratesPacBorPacBor--TimBorTimBor--HiBorHiBor--Advance GuardAdvance Guard--SilBorSilBor
AWPAAWPA CC--3131 –– “Where“Whereits application is its application is continually protected continually protected from liquid water”from liquid water”SillSill Pl & I iPl & I iSillSill Plate & InteriorPlate & InteriorFraming ApplicationsFraming ApplicationsC l lC l l ft ithft ithColorlessColorless –– often withoften withblueblue--green dyegreen dye
CACA--CCCACA CCWolmanizedWolmanized®® OutdoorOutdoor®®
Douglas fir / Hem fir / Southern Yellow PineDouglas fir / Hem fir / Southern Yellow PineAWPA B k f St d dAWPA B k f St d dAWPA Book of StandardsAWPA Book of Standards
ICC Evaluation Service ReportICC Evaluation Service ReportGround & Fresh Water ContactGround & Fresh Water Contact
CCACCACCACCA
Douglas fir / Hem fir / Southern Yellow PineDouglas fir / Hem fir / Southern Yellow PineAWPA B k f St d dAWPA B k f St d dAWPA Book of StandardsAWPA Book of Standards
Ground, Fresh & Salt Water ImmersionGround, Fresh & Salt Water Immersion
CCACCACCACCAIndustry Voluntarily Modified EPAIndustry Voluntarily Modified EPAIndustry Voluntarily Modified EPAIndustry Voluntarily Modified EPARegistered Uses for CCA.Registered Uses for CCA.SinceSince Dec. 31, 2003 Dec. 31, 2003 –– CCA CCA is not is not used in consumer and residential used in consumer and residential applicationsapplications. Except for Permanent . Except for Permanent Wood Foundations and ShinglesWood Foundations and ShinglesWood Foundations and ShinglesWood Foundations and ShinglesCCA is still approved for industrial CCA is still approved for industrial end use applications such as end use applications such as l d hi h t til d hi h t tiplywood, highway construction,plywood, highway construction,
utility poles, piling and utility poles, piling and agricultural.agricultural.EPA does NOT Recommend theEPA does NOT Recommend theEPA does NOT Recommend theEPA does NOT Recommend theRemoval of Existing CCA Structures Removal of Existing CCA Structures or Installations.or Installations.
MCQ & MCAMCQ & MCAMCQ & MCAMCQ & MCAMicroProMicroPro™™
Micronized Copper ProductsMicronized Copper ProductsMCQMCQ –– ““SmartSenseSmartSense””
Hem Fir / SYPHem Fir / SYPHem Fir / SYPHem Fir / SYPMCAMCA –– ““LifeWoodLifeWood””
Hem Fir / D Fir / SYPHem Fir / D Fir / SYP/ // /ICC Evaluation Service ICC Evaluation Service ReportReportLight fresh appearanceLight fresh appearanceLight, fresh appearance,Light, fresh appearance,slightly darker than slightly darker than untreated wooduntreated woodAbove Ground, Ground & Above Ground, Ground & Fresh Water ContactFresh Water Contact
N M t lliN M t lliNon MetallicNon MetallicPreservativesPreservativesPreservativesPreservatives
Non Metallic, CarbonNon Metallic, Carbon--basedbasedIngredients Using OrganicIngredients Using Organicg g gg g g
ChemistryChemistry
PTIPTIPTIPTIWolmanizedWolmanized®® LL33 OutdoorOutdoor®® WoodWoodDouglas fir, Hem fir, SYPDouglas fir, Hem fir, SYPAWPA Book of StandardsAWPA Book of StandardsICC Evaluation ServiceICC Evaluation ServiceICC Evaluation ServiceICC Evaluation ServiceReportReportAboveAbove--ground Use Onlyground Use OnlyPTI = PTI = AWPA DesignationAWPA Designation((propiconazolepropiconazole,, tebuconazoletebuconazole,,imidaclopridimidacloprid))Very Little Color Unless Very Little Color Unless Colorant is Added for ID Colorant is Added for ID PurposesPurposesppLow Impact on Hardware Low Impact on Hardware & Coatings& Coatings
ELEL22ELELEcolifeEcolife™™
Douglas fir, Hem fir, SYPDouglas fir, Hem fir, SYPAWPA Book of StandardsAWPA Book of StandardsICC Evaluation ServiceICC Evaluation ServiceICC Evaluation ServiceICC Evaluation ServiceReportReportAboveAbove--ground Use Onlyground Use OnlyELEL22 == AWPA DesignationAWPA Designation(DCOI,(DCOI, ImidaclopridImidacloprid))Very Little Color UnlessVery Little Color UnlessVery Little Color UnlessVery Little Color UnlessColorant is Added for ID Colorant is Added for ID PurposesPurposesLow Impact on HardwareLow Impact on HardwareLow Impact on HardwareLow Impact on Hardware& Coatings& Coatings
Ca e & MaintenanceCa e & MaintenanceCare & MaintenanceCare & Maintenance
Waterborne treated Waterborne treated productsproductscan be painted or stainedcan be painted or stainedcan be painted or stainedcan be painted or stained..((Follow manufacturers recommendations.)Follow manufacturers recommendations.)
WaterWater repellent repellent coating coatingrecommendedrecommended annually.annually.
OilOil--Type PreservativesType PreservativesOilOil Type PreservativesType Preservatives
C tC tCreosoteCreosotePentachlorophenolPentachlorophenolPentachlorophenolPentachlorophenolCopper NaphthenateCopper Naphthenatepp ppp p
CreosoteCreosoteCreosoteCreosote
PentachlorophenolPentachlorophenolPentachlorophenolPentachlorophenol Copper NaphthenateCopper NaphthenateCopper NaphthenateCopper Naphthenate
Only AWPA Only AWPA yyApprovedApproved
Preservative forPreservative forffField TreatmentField Treatment
End Cuts End Cuts in Western Softwood in Western Softwood Species MUST Species MUST BeBe
Field Treated To Meet Code!Field Treated To Meet Code!Field Treated To Meet Code!Field Treated To Meet Code!
IBC Requires End Cuts Be Field Treated
Field Treatment: Cut ends, notches and drilled holes of preservative-treated wood shall be treated in the field in
accordance with AWPA M4.
Treat End Cuts to Prevent Decay!Treat End Cuts to Prevent Decay!Treat End Cuts to Prevent Decay!Treat End Cuts to Prevent Decay! Copper Nap BrandsCopper Nap Brandspp ppp p(at least 2% copper solution)(at least 2% copper solution)
JASCOJASCOCopperCopper--GreenGreenCopperCopper--BrownBrownTerminTermin--88TerminTermin 88
CUPRINOLCUPRINOLGreen #10Green #10
WOLMANIZEDWOLMANIZEDWOLMANIZEDWOLMANIZEDEnd Cut SolutionEnd Cut Solution
2012 I t ti l B ildi2012 I t ti l B ildi C dC d2012 International Building2012 International Building CodeCodeSection 2304.11Section 2304.11
Decay and Termite ProtectionDecay and Termite Protection
Section 2304 11 2Section 2304 11 2Section 2304.11.2Section 2304.11.2Wood Used Above GroundWood Used Above Ground
Wood used above ground in theground in thefollowing IBCSections:Sections:
Section 2304 11 2 1Section 2304 11 2 1Section 2304.11.2.1Section 2304.11.2.1Joists, Girders & SubfloorJoists, Girders & Subfloor
Wood joists or the bottom of a wood t t l floo lo estructural floor closer
than 18” or wood girders when closer th 12” t dthan 12” to exposedground in crawl spaces or
dunexcavated areas located within the periphery of the p p ybuilding foundation.
Section 2304.11.2.2Section 2304.11.2.2Section 2304.11.2.2Section 2304.11.2.2Wood Supported by Exterior Wood Supported by Exterior
Foundation WallsFoundation WallsFoundation WallsFoundation WallsWood framing members that rest on concrete or masonry exteriormasonry exteriorfoundation walls & are less that 8’’ from exposed ground.
Section 2304.11.2.3Section 2304.11.2.3Section 2304.11.2.3Section 2304.11.2.3Exterior Walls Below GradeExterior Walls Below Grade
Wood furring strips Wood furring strips or other wood or other wood framing members framing members
h d hh d hattached to theattached to theinterior or exterior interior or exterior masonry or concretemasonry or concretemasonry or concretemasonry or concretewalls below grade.walls below grade.
Section 2304 11 2 4Section 2304 11 2 4Section 2304.11.2.4Section 2304.11.2.4Sills and SleepersSills and Sleepers
All foundation plates or sills and sleepers on a concrete or masonry slab whichmasonry slab, whichis in direct contact with earth, and sill ,which rest on concrete or masonry foundationsfoundations.
S tiS ti 2304 11 2 52304 11 2 5SectionSection 2304.11.2.52304.11.2.5Girder EndsGirder Ends
The ends of wood girders entering exterior masonry or conc ete allsconcrete wallshaving clearances of less than 0.5’’ onof less than 0.5 ontops, sides and ends.
Section 2304.11.2.6Section 2304.11.2.6Section 2304.11.2.6Section 2304.11.2.6Wood SidingWood Siding
Wood siding, Wood siding, sheathing & wallsheathing & wallsheathing & wallsheathing & wallframing on the framing on the exterior of a buildingexterior of a buildinggghaving a clearance having a clearance less than 6” to the less than 6” to the ground.ground.
Section 2304 11 2 7Section 2304 11 2 7Section 2304.11.2.7Section 2304.11.2.7Posts or ColumnsPosts or Columns
Posts or columns supporting permanent structures and supported by asupported by aconcrete or masonry slab or footing that is gin direct contact with the earth.
Section 2304 11 3Section 2304 11 3Section 2304.11.3Section 2304.11.3Laminated TimbersLaminated Timbers
The portions of glued laminated timbers thatlaminated timbers thatform the structural supports of a buildingpp gand are exposed to weather and not
t t d f i tprotected from moisture.
Section 2304.11.4Section 2304.11.4Section 2304.11.4Section 2304.11.4Wood in Contact with theWood in Contact with theGround or Fresh WaterGround or Fresh WaterGround or Fresh WaterGround or Fresh Water
Wood used above ground in the locations specified i th f ll iin the followingSections:2304 11 4 12304.11.4.12304.11.4.2.
Section 2304.11.4.1Section 2304.11.4.1Section 2304.11.4.1Section 2304.11.4.1Posts or ColumnsPosts or Columns
Posts and columns supporting permanent structures that are embedded in concrete that is in direct contactthat is in direct contactwith the earth, embedded in concreteembedded in concretethat is exposed to the weather, or in direct contact with the earth.
Section 2304.11.4.2Section 2304.11.4.2Section 2304.11.4.2Section 2304.11.4.2Wood Structural MembersWood Structural Members
Wood structural memberssupportingmoisture-permeable floors orpermeable floors orroofs that are exposed to weatherexposed to weathersuch as concreteor masonry slabs.
Section 2304.11.5Section 2304.11.5Supporting Member forSupporting Member for
Permanent AppurtenancesPermanent Appurtenancespppp
In geographical areasIn geographical areaswhere needed, wood members which support buildings,balconies,d k h ifdecks or porches ifexposed to weather and without adequateand without adequatecover protection.
Section 2304.11.6Section 2304.11.6Section 2304.11.6Section 2304.11.6Termite ProtectionTermite Protection
In geographical areas where hazard of t it d itermite damage isknown to be very heavy wood floorheavy, wood floorframing.
Section 2304.11.7Section 2304.11.7Wood Used inWood Used in
Retaining Walls & CribsRetaining Walls & Cribsgg
Wood installed inWood installed inretaining or crib walls.walls.
How To Specify With theHow To Specify With thep yp yAWPA Use Category SystemAWPA Use Category System
Use Catego S stemUse Catego S stemWhat Is It?
Use Category SystemUse Category SystemWhat Is It?
B d dB d d bi d t i tibi d t i ti h dh dBased on end use Based on end use biodeteriorationbiodeterioration hazardhazard5 Use Categories based on exposures & expected 5 Use Categories based on exposures & expected product performanceproduct performanceproduct performance.product performance.Categories range from weather protected (UC1 mild Categories range from weather protected (UC1 mild exposure/lowest risk) to salt water marine (UC5 severe exposure/lowest risk) to salt water marine (UC5 severe p / ) (p / ) (exposure/highest risk).exposure/highest risk).Separate Use Category for fire retardants.Separate Use Category for fire retardants.
Use Catego 1 (UC 1)Use Catego 1 (UC 1)Use Category 1 (UC 1)Use Category 1 (UC 1)Interior ConstructionInterior Construction
Not in contact with Not in contact with ground orground orground orground orfoundationsfoundations
Protected fromProtected fromProtected fromProtected fromweatherweather
Protected fromProtected fromProtected fromProtected frominterior sources of interior sources of waterwaterwaterwater
Insect Hazard OnlyInsect Hazard Only
Use Catego 2 (UC 2)Use Catego 2 (UC 2)Use Category 2 (UC 2)Use Category 2 (UC 2)Interior ConstructionInterior Construction
Not in contact with Not in contact with groundgroundgg
Protected from Protected from weatherweather
Subject to dampness Subject to dampness and occasionaland occasionaland occasionaland occasionalsources of watersources of water
Decay Fungi andDecay Fungi andDecay Fungi andDecay Fungi andInsect HazardInsect Hazard
Use Catego 3 (UC 3)Use Catego 3 (UC 3)Use Category 3 (UC 3)Use Category 3 (UC 3)Above Ground;Above Ground;Above Ground;Above Ground;Exposed to the Exposed to the W thW thWeatherWeather
UC3A: Coated & rapid UC3A: Coated & rapid water runoffwater runoff
UC3B: Uncoated or UC3B: Uncoated or poor water runoffpoor water runoff
Decay Fungi and Decay Fungi and y gy gInsect HazardInsect Hazard
Use Catego 4 (UC 4)Use Catego 4 (UC 4)Use Category 4 (UC 4)Use Category 4 (UC 4)
Ground or Fresh Ground or Fresh Water Contact;Water Contact;Water Contact;Water Contact;Exposed to Weather Exposed to Weather
UC4A D k tUC4A D k tUC4A: Deck supportsUC4A: Deck supports
UC4B: Foundation, UC4B: Foundation, building polesbuilding poles
Subject to Fungal and Subject to Fungal and Insect HazardsInsect Hazards
Use Catego 5 (UC 5)Use Catego 5 (UC 5)Use Category 5 (UC 5)Use Category 5 (UC 5)
Wood Used in Salt or Wood Used in Salt or Brackish WaterBrackish WaterBrackish WaterBrackish Water
Exposed to marine Exposed to marine borer attackborer attackborer attackborer attack
Construction such as Construction such as m ine pile do km ine pile do kmarine piles, docks,marine piles, docks,bridgesbridges
Use Catego FUse Catego F UC FUC FUse Category FUse Category F -- UC FUC F
Fire Retardant Treated WoodFire Retardant Treated WoodAbove Ground Use OnlyAbove Ground Use OnlyAbove Ground Use OnlyAbove Ground Use OnlyTwo Risk Groups Two Risk Groups –– Determined by Determined by Weather ExposureWeather ExposureWeather ExposureWeather Exposure
UC FA: Interior UC FA: Interior -- Continuously protected from Continuously protected from weatherweatherweatherweatherUC FB: Exterior UC FB: Exterior -- Exposed to weather or Exposed to weather or wettingwettingwettingwetting
WWPI APP to Assist in DeterminingWWPI APP to Assist in DeterminingggProper Treated Proper Treated Wood End UsesWood End Uses Section 2303 1 8 1Section 2303 1 8 1Section 2303.1.8.1Section 2303.1.8.1
Quality Mark Quality Mark -- IdentificationIdentification
All ti t t d d h llAll preservative-treated wood shallbear the quality mark of an inspection agency which has been accredited byagency which has been accredited bythe American Lumber Standards Committee and complies with theCommittee and complies with therequirements of the ALSC Treated Wood Program or equivalentWood Program or equivalent.
Section 2303.1.8.1Section 2303.1.8.1Section 2303.1.8.1Section 2303.1.8.1Quality Mark Quality Mark –– Required InformationRequired Information
Identification of the treating plantIdentification of the treating plantType of preservativeType of preservativeType of preservativeType of preservativeMinimum Preservative RetentionMinimum Preservative RetentionE d U f hi h it t t dE d U f hi h it t t dEnd Use for which it was treatedEnd Use for which it was treatedAWPA StandardAWPA StandardIdentity or Logo of the AccreditedIdentity or Logo of the AccreditedInspection AgencyInspection Agencyp g yp g y
Section 2303.1.8.1Section 2303.1.8.1Section 2303.1.8.1Section 2303.1.8.1Quality Mark Quality Mark –– Required InformationRequired Information
Fasteners and Connectors for Fasteners and Connectors for Preservative Treated WoodPreservative Treated Wood
Fasteners in contact with preservativeFasteners in contact with preservative--treatedtreatedwood shall be of hotwood shall be of hot--dipped zincdipped zinc--coatedcoatedwood shall be of hotwood shall be of hot--dipped zincdipped zinc--coatedcoatedgalvanized steel, stainless steel, silicon bronze galvanized steel, stainless steel, silicon bronze or copper.or copper.ppppException:Exception: Plain carbon steel fasteners in Plain carbon steel fasteners in SBX/DOT and zinc borate preservativeSBX/DOT and zinc borate preservative--treatedtreatedppwood in an interior, dry environment shall be wood in an interior, dry environment shall be permitted.permitted.
What Do The Chemical What Do The Chemical Manufacturers Recommend?Manufacturers Recommend?
As a minimum requirement for use with PreserveAs a minimum requirement for use with Preserve®,®, NatureNatureWoodWood®® andand WolmanizedWolmanized Natural SelectNatural Select®® preserved wood preserved wood products, hotproducts, hot--dipped galvanized coated fasteners shoulddipped galvanized coated fasteners shouldproducts, hotproducts, hot dipped galvanized coated fasteners shoulddipped galvanized coated fasteners shouldconform to ASTM Standard Aconform to ASTM Standard A--153.153.For optimum performance and longevity in treated wood, For optimum performance and longevity in treated wood, stainless steel fasteners should be considered Stainlessstainless steel fasteners should be considered Stainlessstainless steel fasteners should be considered. Stainlessstainless steel fasteners should be considered. Stainlesssteel fasteners are required for Permanent Wood steel fasteners are required for Permanent Wood Foundations below grade and are recommended for use Foundations below grade and are recommended for use with treated wood in other severe exterior applicationswith treated wood in other severe exterior applicationswith treated wood in other severe exterior applicationswith treated wood in other severe exterior applicationssuch as swimming pools, salt water exposure, etc. Type such as swimming pools, salt water exposure, etc. Type 304 & 316 are recommended grades to use.304 & 316 are recommended grades to use.Al i h ld t b d i di t t t ith thiAl i h ld t b d i di t t t ith thiAluminum should not be used in direct contact with thisAluminum should not be used in direct contact with thiswood.wood.
When Using Treated Wood in Aquatic When Using Treated Wood in Aquatic d W tl d E i td W tl d E i tand Wetland Environmentsand Wetland Environments
ALWAYS SPECIFY BMP STANDARDSALWAYS SPECIFY BMP STANDARDSBest Management P acticesBest Management P acticesBest Management PracticesBest Management Practices
Produce products which Produce products which minimize any potential for minimize any potential for adverse environmental adverse environmental impactimpactimpactimpactAssure products are Assure products are selected, specified and selected, specified and i t ll d tl fi t ll d tl finstalled correctly from an installed correctly from an environmental perspectiveenvironmental perspectiveIncorporate most current Incorporate most current ppadvances in technologyadvances in technologyEducate users that “less is Educate users that “less is more not better”more not better”
BMPs for Use of Treated Wood BMPs for Use of Treated Wood in Aquatic Environmentsin Aquatic Environments
Additional Treating to AWPA Additional Treating to AWPA StandardsStandardsMinimum ChemicalsMinimum ChemicalsMinimum ChemicalsMinimum ChemicalsClean ProductClean ProductInspection & RejectionInspection & RejectionInspection & RejectionInspection & RejectionFixationFixationField Installation GuidelinesField Installation GuidelinesBMP Quality Control & BMP Quality Control & CertificationCertification
Aq atic & Wetland Const ctionAq atic & Wetland Const ctionAquatic & Wetland ConstructionAquatic & Wetland Construction
Cases where selection of Cases where selection of preservative system may preservative system may be of environmental be of environmental concern:concern:
Previously contaminated Previously contaminated waters.waters.Very slow moving watersVery slow moving watersVery slow moving watersVery slow moving waterswith no natural flushing.with no natural flushing.
Where concerns exist, Risk Where concerns exist, Risk Assessment Guidelines areAssessment Guidelines areu d au d aavailable in the Treated available in the Treated wood Aquatic Guide and wood Aquatic Guide and specific Risk Assessment specific Risk Assessment M d l il bl liM d l il bl liModels are available on lineModels are available on line
Aq atic & Wetland Const ctionAq atic & Wetland Const ctionAquatic & Wetland ConstructionAquatic & Wetland Construction
In sensitive environments In sensitive environments always specify wood be always specify wood be ®treated in compliance with treated in compliance with WWPI’s BMPsWWPI’s BMPsR i 3R i 3 dd PP
®
Require 3Require 3rdrd PartyPartyInspection Agency Inspection Agency Certification:Certification:Certification:Certification:
Presence of BMP MarkPresence of BMP MarkCertificate of ComplianceCertificate of Compliance BMP® Quality Mark LogoCertificate of ComplianceCertificate of Compliance
Handling, Installation & Handling, Installation & g,g,Maintenance BMPsMaintenance BMPs
Always prefabricate Always prefabricate (to degree (to degree
possible)possible) prior to treatmentprior to treatmentI t t i l itI t t i l itInspect materials on siteInspect materials on siteUse containment where Use containment where neededneededneededneededWork away from waterWork away from waterField treat end cuts with Field treat end cuts with carecareCollect & dispose of old Collect & dispose of old materials and constructionmaterials and constructionmaterials and constructionmaterials and constructionwastes properlywastes properly
Examples of BMP Treated ProjectsExamples of BMP Treated ProjectsExamples of BMP Treated ProjectsExamples of BMP Treated Projects Examples of BMP Treated ProjectsExamples of BMP Treated ProjectsExamples of BMP Treated ProjectsExamples of BMP Treated Projects
Environmental & Human SafetyEnvironmental & Human SafetyEnvironmental & Human SafetyEnvironmental & Human Safety
ConsumerConsumerInformation Sheets & Information Sheets & MSDS for Treated MSDS for Treated WoodWood
HandlingHandlingHandlingHandlingRequirements are Requirements are Same as Untreated Same as Untreated WoodWood
Disposal of T eated WoodDisposal of T eated WoodDisposal of Treated WoodDisposal of Treated Wood
Reuse is the preferred Reuse is the preferred optionoptionN b l hN b l hNever burn or mulchNever burn or mulchTreated wood is Treated wood is classified as a nonclassified as a nonclassified as a nonclassified as a nonhazardous waste by hazardous waste by Federal and State Federal and State rules and can be rules and can be disposed in modern disposed in modern lined landfilllined landfilllined landfill.lined landfill.
Fi e Reta dant T eated WoodFi e Reta dant T eated WoodFire Retardant Treated WoodFire Retardant Treated Wood Fi e Reta dant T eated WoodFi e Reta dant T eated WoodFire Retardant Treated WoodFire Retardant Treated Wood
Interior Fire RetardantsInterior Fire RetardantsLumber / PlywoodLumber / PlywoodLumber / PlywoodLumber / Plywood
Exterior Fire RetardantsExterior Fire Retardantsb / l db / l dLumber / PlywoodLumber / Plywood
Shakes / Shingle SidingShakes / Shingle Siding
FRTW INTERIOR APPLICATIONSFRTW INTERIOR APPLICATIONSFRTW INTERIOR APPLICATIONSFRTW INTERIOR APPLICATIONS
Roof SheathingRoof SheathingRoof TrussesRoof Trusses
Floor SheathingFloor SheathingPlywood SubflooringPlywood Subflooring
RaftersRaftersFloor JoistsFloor JoistsShel ingShel ing
Partition WallsPartition WallsBeams & PurlinsBeams & PurlinsBlocking & F ingBlocking & F ingShelvingShelving
StepsStepsStairwaysStairways
Blocking & FurringBlocking & FurringPlatformsPlatformsStagesStagesStairwaysStairways
StudsStudsElectrical PanelsElectrical Panels
StagesStagesWall PanelingWall PanelingArchitectural MillworkArchitectural Millwork
FRTW EXTERIOR APPLICATIONSFRTW EXTERIOR APPLICATIONSFRTW EXTERIOR APPLICATIONSFRTW EXTERIOR APPLICATIONS
Wall CoveringsWall CoveringsBalconiesBalconies
Roof CoveringsRoof CoveringsCanopies & AwningsCanopies & Awnings
DeckDeckStairwaysStairways
p gp gStorefronts & FacadesStorefronts & FacadesEaves, Soffits & FasciaEaves, Soffits & FasciaStairwaysStairways
FencingFencingShedsSheds
Eaves, Soffits & FasciaEaves, Soffits & FasciaAg Buildings & StallsAg Buildings & StallsScaffolding & ScaffoldScaffolding & ScaffoldShedsSheds
GazebosGazebosOpen Air Roof SystemsOpen Air Roof Systems
Scaffolding & ScaffoldScaffolding & ScaffoldPlanksPlanksConstruction StagingConstruction StagingOpen Air Roof SystemsOpen Air Roof Systems Construction StagingConstruction Staging
Environmental Life Cycle Assessments of Environmental Life Cycle Assessments of ACQACQ-- and Borateand Borate--Treated LumberTreated Lumber
Prepared in cooperation withPrepared in cooperation with
ENERGY | ENGINEERING | ENVIRONMENTAL | RISK | SUSTAINABILITY
Lumber LCAs ResultsLumber LCAs ResultsPublished in April/May 2011 EditionPublished in April/May 2011 EditionPublished in April/May 2011 EditionPublished in April/May 2011 Edition
Journal of Cleaner ProductionJournal of Cleaner ProductionLCA of ACQLCA of ACQ--Treated LumberTreated LumberTreated LumberTreated LumberCompared to Compared to WPC DeckingWPC DeckingWPC DeckingWPC DeckingLCA of Borate LCA of Borate Treated LumberTreated LumberTreated LumberTreated LumberCompared to Compared to Galvanized SteelGalvanized SteelGalvanized SteelGalvanized SteelFramingFraming
ACQ L bACQ L b Fi lFi l R ltR ltACQ LumberACQ Lumber FinalFinal ResultsResults
TreatedTreatedlumberlumberlumberlumberdeckdeckcomparedcomparedcomparedcomparedto wood to wood l il iplasticplastic
compositecompositedeckdeck
Normalized Impact IndicatorsNormalized Impact IndicatorsNormalized Impact IndicatorsNormalized Impact Indicators(ACQ= 1)(ACQ= 1)
14.0
16.0
8.0
10.0
12.0 V
alue
2.0
4.0
6.0
Nor
mal
ized
Total Energy Value
Greenhouse Gases Fossil Fuel Use Water Use Acid Rain Smog Eutrophication Ecological
ACQ Lumber 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0WPC Decking 8.5 2.9 14 2.8 4.3 2.6 1.1 1.7
0.0
BorateBorate--Treated Lumber Treated Lumber FinalFinalReportReport
Lumber used for Lumber used for framing where framing where protection from protection from termites or decay termites or decay neededneededneededneededCompared to Compared to galvanized steelgalvanized steelgalvanized steelgalvanized steelframing.framing.
Borate PTW Compared to Galv SteelBorate PTW Compared to Galv SteelBorate PTW Compared to Galv. SteelBorate PTW Compared to Galv. Steel(Borate = 1)(Borate = 1)
10
7
8
9
10
Value = 83
4
5
6
7
mal
ized
Val
ue
1
2
3Nor
m
Greenhouse Gases Fossil Fuel Use Water Use Acid Rain Ecological
Impact Smog Eutrophication
Borate Lumber 1.0 1.0 1.0 1.0 1.0 1.0 1.0Galv. Steel Framing 1.8 3.7 83 3.5 2.5 2.8 3.3
0
General ConclusionsGeneral Conclusions
ACQ-treated lumber results in lower energyACQ-treated lumber results in lower energyand environmental impacts in comparison to WPC for 6 out of 7 indicators. Approximatelypp yequal for eutrophication.Borate-treated lumber results in lower energyo a a d u b u o gyand environmental impacts in comparison to galvanized steel for all 7 indicatorsLife cycle impacts could be reduced even more by reusing of treated wood products following primary service.
For More Information Go To For More Information Go To www WWPInstitute orgwww WWPInstitute orgwww.WWPInstitute.orgwww.WWPInstitute.org
Free APP for Android/Apple inFree APP for Android/Apple inFree APP for Android/Apple inFree APP for Android/Apple instores under Wood Preserversstores under Wood Preservers
Western Wood Preservers Institute APPWestern Wood Preservers Institute APPTreated Wood & Codes
Treated Wood
SelectionTreated Wood Selection
Process
Treated Treated
Info
Wood Options
Wood Supply
Concl ding Rema ksConcl ding Rema ksConcluding RemarksConcluding Remarks
Th kTh kThank you.Thank you.
Questions?This concludes The American Institute of
Architects Continuing Education Systems Course
Edd L hEddy LongshoreCox Industries, Inc.
Continuing Education Manager73 Regent AvenueBl fft SC 29910Bluffton, SC 29910
Work: 803-585-1483Mobile: 803-614-9622
Dallin BrooksAssistant Executive Director
Kevin RagonExecutive Director
www.coxwood.com
Assistant Executive DirectorWestern Wood Preservers Institute
Executive DirectorSouthern Pressure Treaters Association
