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SALES SHEETLP FlameBlock Fire-Rated OSB SheathingApplication: Multifamily roof decks – fire wall continuityDescription: Where the shared, or “common” wall separating occupancies meets a roof deck, code* requires eithera) extension of the firewall 30” beyond the roof vertically (parapet construction)b) U se of Class A flame spread rated sheathing for 4’ on each side of the wall where it intersects the roof deckc) Type X gypsum wallboard installed underneath roof deck 4’ on each side of fire wall.LP Certification/Listing: ICC-ESR #1365Common Applications: FRT plywoodFlameBlock(white,coatedface down) Type X Gypsum wall boardLP FlameBlock Sheathing Applications: L P FlameBlock sheathing is a direct substitution with Pyrotite facing downApplication: 1-hour rated exterior fire wall – zero lot line applicationsDescription: 2009 IRC requires walls built within 5’ of a property line or within 5’ of another building on the sameproperty to have a 1 hour fire resistance rating with fire exposure from the exterior of the building (NOTE:Code* requirements vary) An addendum to the assembly allows for the use of common claddings, including SmartSide, fibercement, and T1-11 panels.Division 06- Wood and Plastics06-08-00 Factory-Applied Wood Coatings Assembly is listed with Intertek, not UL (See below)06-16-00 SheathingBarrier Technologies,Corp. This assemblyis loadrestricted. An engineering evaluation will be required to insure that variousDesign No. BTC/WA-60-01Blazeguard Sheathingcompressive,axial, and shear strength requirements are metASTM E-119-05a Assembly Rating-1 HRMax Loading-1684 lbs. Per StudLP Certification/Listing: Intertek Labs - BT 60-01Common Applications: 5 /8-inch exterior gypsum (such as GP Densglass) installed behind theexterior cladding Three-coat stucco F iber cement board cladding installed over 5/8 Type X gypsum wallboardLP FlameBlock Sheathing Applications:1.1. FlameBlock with L P FlameBlock should be installed with Pyrotite facing the exterior cladding.Pyrotite facing out2. Mineral wool insulationWALLBOARD GYPSUM: Face layer 5/83. 5/8 Type X gypsum 2. CERTIFIED MANUFACTURER: Variousin. thick x 4 ft. x 10 ft. Type X gypsumCERTIFIED PRODUCT: Mineral Woolwallboard, applied4. 2 xvertically,6 woodfastenedstudwith 1-7/8 in. long cup-head drywallnails, 8 in. o.c. Joint Tape andcompound – vinyl or casein, dry orpremixed joint compound applied to facelayers of gypsum wallboard in two coatsto all exposed fastener heads andgypsum wallboard joints. A min. 2-in.MODEL:OnlyIntertekCertifiedManufacturer’s product meeting theminimum requirements below.*Code specifications and requirementsvary. Always secure local building inspector approval of product use.CAVITY INSULATION: Unfaced mineralfiber batt insulation having a nom. 5-1/2in. thickness, 2.5 pcf density and frictionPage 1 of 5 9/10

LP FLAMEBLOCK SALES SHEETApplication: 2-hour interior party wall – common wall in townhome constructionDescription:Fire-Resistant Walls Double-studparty wall dividing units within a single buildingDesign No. BW 126BEARING WALL Structural/shear-ratedwallAssembly Rating: 2 hrLP Certification/Listing: Underwriters Labs U350Common Applications: T wo layers of 1” thick x 24” wide “Shaft wall liner” fire-rated gypsumwith metal “H-studs”, installed between the two stud walls T ypically, one side is built, then shaftliner is installed, then other wallis “tilted up” into positionLP FlameBlock Sheathing Applications: L P wall assembly for this application requires 2 – 2x4 wood studs at1. 5/8 Type X gypsum2. Mineral wool insulationleast 1” apart, 1 layer of 15/32 LP FlameBlock sheathing & 1 layer ofbetween the studs, cross-bracing, top andALLBOARD, GYPSUM: One layer 5/8 in.3. LP FlameBlock withbottom plates.k x 4 ft. x 10 ft. Type X gypsum wallboard,5/8 Type X gypsum with mineral wool insulation in both stud cavilied vertically over the panelsto each sidePyrotitefacing3.livingspacePANEL:A nom. 48 x 96 in. panel of either ahe assembly, fastened through the panelsnom. 1/2 in. (APA rated 15/32 in.) thick ties and Pyrotite facing the living space (See assembly for details)h 8d cement coated nails,4. 22-3/8-2 xin.4long,wood studsplywood or 7/16 in. thick OSB with 0.060 in.-head drywall nails with 0.113 in. shankand 9/32 in. head dia., spaced 8 in. o.c.ng all studs and runners. Joint Tape andmpound - vinyl or casein, dry or premixednt compound applied to face layers ofsum wallboard in two coats to all exposedener heads and gypsum wallboard joints. A. 2-in. wide paper, plastic or fiberglasse embedded in first layer of compound overts in gypsum wallboard.thick inorganic laminate boards** adhered toonly one face of the wood sheet. Plywood corepanels are nom. 9/16 in. thick and OSB corepanels are nom. 1/2 in. thick. Inorganiclaminate board side of panels are attached toboth exposed sides of the wood framing with1-7/8 in. long, 6d nails, spaced 6 in. o.c.around the perimeter and 12 in. o.c. in thefield. (**The inorganic laminate boards arecomposed of a fire resistant slurry imbeddedinto a glass fiber mat and are called PyrotiteSheets.)Application: 2-hour rated exterior wall – Type IIIA ConstructionVITY INSULATION: Unfaced mineralr batt insulation having a nom. 3-1/2 in.ckness, 3 pcf density and friction fitugust 1, 2003.Description: Designed to be used in commercial or multifamily residential buildings of 3-6 stories (Type IIIA) Omega Point Laboratories, Inc. Type IIIA construction is required to have non-combustible exterior walls (no wood) that have beenrated, under load, to last at least 2-hours in a fire with exposure on the inside wall surface FRT wood framing is allowedas an exception within the IBC Code*Fire-Resistant Walls Structural/shear-rated wall with interior fire exposure ratingDesign No. BW 124 LP wall assembly for this application has been allowed by building code officials*BEARING WALLAssembly Rating: 2 hrInterior Exposure OnlyLP Certification/Listing: Underwriters Labs U349Common Applications: T wo layers of 5/8-inch, fire-rated gypsum on the interior with steelframing or FRT wood framing, FRT plywood exterior sheathing, and5/8-inch exterior, fire-rated gypsum (such as GP DensGlass) (See U371)1.LP FlameBlock Sheathing Applications:1. Exterior facings 2. 1 layer 2-sided LP FlameBlock L P wall assembly requires 2x4 wood studs,1 layer of 2-sided3. Mineral wool insulation15/32 LP FlameBlock sheathing & 2 layers of 5/8 Type X gypsum with4. 5/8 Type X gypsum5. 5/8 Type X gypsummineral wool insulation on the interior side of the wall6. 2 x 4 wood studembedded in first layer of compound overWALLBOARD, GYPSUM: Fire side. Facelayer 5/8 in. thick x 4 ft. x 10 ft. Type Xgypsum wallboard, applied vertically, fastenedwith 8d cement coated nails, 2-3/8 in. longcup-head drywall nails with 0.113 in. shankdia. and 9/32 in. head dia., spaced 8 in. o.c.along all studs and runners. All joints and nailjoints in gypsum wallboard.*Code specifications and requirementsvary.Alwayssecure2. WALLBOARD,GYPSUM:Base layer5/8 in. local building inspector approval of product use.thick x 4 ft. x 10 ft. Type X gypsum wallboard,applied vertically, fastened with 6d cementcoated nails, 1-7/8 in. long, cup-head drywallPage 2 of 5 9/10

LP FLAMEBLOCK SALES SHEETApplication: Type I and II roof decks – strip malls and small commercialDescription: FRT is typically used as the roof deck, usually over foam insulation, as the walkable surfaceunderneath rubber membranes EPDM and TPO single-ply membranes glued directly to the FRT plywood ICC-ES Report #1365 requires that the LP FlameBlock sheathing be treated “both-sides” to beconsidered equivalent to FRT in this applicationLP Certification/Listing: Underwriters Labs TGFU R21591Common Application: FRT PlywoodLP FlameBlock Sheathing Application: 2-sided LP FlameBlock sheathingApplication: Open soffit exposuresDescription: FlameBlock has been approved by California’s Office of the State Fire Marshall’s (OSFM) and will soonbe added to their Approved Products list. Product is currently on the list as a soffit and limited ignitionmaterial under the Blazeguard name In an open soffit application, California code* allows LP FlameBlock sheathing to be used as the roof deckmaterial over the roof rafter “tails”, Pyrotite facing down The warranty period for this application is currently 2 years. We are conducting testing to supportextension of the warrantyLP Certification/Listing: California OSFMApproved Product ListCommon Application A pproved, ignition-resistant materials, such as fibercement, installed as the “ceiling” of the open eavesLP FlameBlock Sheathing Application: LP FlameBlock sheathing with Pyrotite facing down*Code specifications and requirements vary. Always secure local building inspector approval of product use.Page 3 of 5 9/10

LP FLAMEBLOCK SALES SHEETApplication: WUI Zone exterior wallDescription: In high risk fire zones in California, exterior walls that are not otherwise required to be 1-hour ratedmust meet requirements for fire resistance LP FlameBlock sheathing has been evaluated to be used with the following architectural claddings:1. LP SmartSide Lap and Panel Siding2. 1/2” Cedar or Redwood Other claddings may be substituted with local building inspector approvalLP Certification/Listing: California OSFMApproved Product Listand Cal WUI protocol12-7A-1Common Practice: F iber cement board claddingsLP FlameBlock Sheathing Application: L P FlameBlock sheathing with Pyrotite facing outApplication: Wood framed, low-slope commercial roof decks (Type V)Description: In some places, commercial roof decks (like warehouse space) are constructed with wood frames If the roof deck is wood framed, FRT plywood is allowed as the roof deck LP FlameBlock sheathing may be used as a substitute for FRT plywood in these applications Please ask for assistance if you have this type of applicationLP Certification/Listing: UNDERWRITERS LABSTGFU R21591Common Practice: FRT PlywoodLP FlameBlock Sheathing Application: D epending on the building design type andlocation, one or two-sided LP FlameBlocksheathing may be required and Pyrotite treatedsingle side may be required to face up or down*Code specifications and requirements vary. Always secure local building inspector approval of product use.Page 4 of 5 9/10

LP FLAMEBLOCK SALES SHEETApplication: Covered and “boxed-in” soffitDescription: Western US building design often prefers to leave the soffit area open, but to cover the roof deckexposed between the rafter tails with a decorative wood material Or builders may prefer to “box-in” the underside of the rafter tails by attaching a decorative claddingto the underside of the rafters In either of these cases, if the exposed, decorative material (the soffit “ceiling”) is not on theOSFM’s list of approved products for this application, the entire design must meet the performancerequirements of a test specifically designed for this application: California SFM Standard 12-7A-3 LP FlameBlock sheathing has passed the requirements for SFM Standard 12-7A-3 utilizing 5/8”cedar as a decorative cladding. The fire test was constructed to present a “worst case” scenario andtherefore cover any commercially available cedar or redwood claddingLP Certification/Listing: LP 12-7a-3 Test Reportfrom Western Fire CenterCommon Application:Picture from Western FireTest Report A pproved, ignition-resistant materials, such as fibercement, as the soffit ceiling, sometimes with firerated gypsum behind itLP FlameBlock Sheathing Application: L P FlameBlock sheathing with Pyrotite facing down*Code specifications and requirements vary. Always secure local building inspector approval of product use.Page 5 of 5 9/10 2010 Louisiana-Pacific Corporation. PRYOTITE is a registered trademark of Barrier Technology Corp. LP, FLAMEBLOCK, and BUILD WITH US. are registered trademarks of Louisiana-Pacific Corporation. All rights reserved. Printed in USA.

Application: 1-hour rated exterior fire wall - zero lot line applications Description: 2009 IRC requires walls built within 5' of a property line or within 5' of another building on the same property to have a 1 hour fire resistance rating with fire exposure from the exterior of the building (NOTE: Code* requirements vary)