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The New Standard for Sustainability.iForm Installation Procedures .2Introduction . 2Planning and Preparation.3Tools and Materials.4Handling and Storing Forms.5Estimating .5Footings, Slabs, Shallow Frost Protected Footings and Grade Beams.11Wall Layout .15Staging Materials for Jobsite Efficiency.16iForm Course Placement .17Door and Window Openings.26Utility Penetrations and Beam Pockets.31Alignment, Bracing and Scaffolding.32Intersecting “T” Walls.34End Walls .35Gable End Walls .36Radius Walls.36Horizontal and Vertical Transition of Form Sizes.40Four-Foot Foundation Walls .40Checklist Prior to Concrete Placement.43Concrete Placement .44Checklist After Concrete Placement .52Intermediate Floors .52Roof Connections .59Electrical and Plumbing .60Interior and Exterior Finishes.61Air and Vapor Retarder.70Exterior Transition Area.70Waterproofing .71HVAC and Indoor Air Quality .72Termite Protection.74Reward Ledge Form and xLerator and tieKey Anchor.76Updated: April 2011Release: K1

The New Standard for Sustainability.iForm Installation ProceduresIntroductionReward products are supplied through a nationwide network of independent distributors, dealers andbuilders. These installation procedures have been developed from the experience of buildingcontractors nationwide who use our products. While these procedures are recommended guidelinesthat work best in general, there are other acceptable techniques that may work as well for specificsituations.Due to continued research and development, information contained in this manual may be added,deleted or revised. It is the responsibility of the user to make sure that they are using the mostcurrent information. Reward's website will always contain the most current information.Reward Wall Systems has no control over the installation, choice of materials and applications usedin the installation of our product; therefore, Reward assumes no responsibility or warranty expressedor implied beyond the physical characteristics of the Reward product.*Any material or product that is applied in contact with the expanded polystyrene (EPS)foam plastic material of the iForm must be compatible. Petroleum, solvent, ketones, andesters based products are not compatible and will deteriorate the foam.The details in this manual are generic and conceptual in nature. Reward Wall Systems, Inc. is notresponsible for final design, construction and compatibility.iForm by Reward Wall Systems provides formwork for a solid continuous flat cast-in-place concretewall. It is nominally 16" high, 48" long, and comes in the following widths: 9" (228 mm) wide - 4" (102 mm) flat core 11" (279 mm) wide - 6" (152 mm) flat core 13" (330 mm) wide - 8" (203 mm) flat core 15" (381 mm) wide - 10" (254 mm) flat core 17" (432 mm) wide - 12" (305 mm) flat coreThe size and shape of the iForm may vary by up to 0.75% of their specifications.iForm provides very strong formwork for placing concrete due to uniquely designed plastic form tiesthat maximize the concrete flow in the forms. The iForm tie is 1 ¼" (32 mm) wide and 6" (152 mm)on center and recessed ½" (12.7 mm). This makes applying all interior and exterior finishes easierthan on similar forms. Additionally, the iForm's furring strip allows the acrylic finishes (stucco) to beapplied without the problems associated with exposed steel or plastic furring strips.It is important to note that if the forms or bundles of forms are to be stored outside for an extendedperiod of time, EPS foam and plastic ties must be protected from UV degradation.ADVICE AND ASSISTANCE can be obtained by contacting your local independent distributor,dealer or builder or the Reward Wall Systems, Inc. Technical Service Department, 800-468-6344,located at 9931 South 136th Street, Suite 100, Omaha, NE 68138-3936.Updated: April 2011Release: K2

The New Standard for Sustainability.Planning and PreparationSpending time planning and preparing in advance of all phases of the construction process will makefor an efficient and successful project. To get started you should read and understand the plans,educate and provide information to the building official, estimate the materials, have the proper toolsand materials available and provide the right size crew. Taking the time to execute right the first timewill provide happy customers and higher profits for the project.Specific items to consider when pre-planning for the project include storage of form bundles, accessfor concrete pump and trucks; establishing concrete delivery lead times; concrete and steelreinforcement requirements; construction of rough opening door and window bucks; coordination ofconcrete anchor bolts and embeds; coordination and layout of penetration sleeves; tool and materialaccessibility; and keeping a clean and accessible work site.It is important to know and understand the local building code in your area. Building a relationshipwith the local building official and providing them with information before the project starts isanother key to success. Reward has received building code compliance with all national modelbuilding codes and other local building codes as shown in the following evaluation reports.United StatesICC Evaluation Service ESR-1552 (IRC, IBC, UBC, BOCA, SBC)State of Wisconsin 200715-IFlorida Product Approval FL 1743- R2City of Los Angeles RR25418City of New York MEA-116-03Miami-Dade 08-0805.19CanadaCanada CCMC 13107-RASTM- C578, E119 & E84The International Residential Code (IRC) has adopted insulating concrete form prescriptive designfor basement walls in section R404.4 and for above grade walls in section R611. Similarly, thePortland Cement Association and HUD have available prescriptive design prepared by the NationalAssociation of Home Builders Research Center. This document, PCA EB118, is titled ThePrescriptive Method for Insulating Concrete Forms in Residential Construction. The PCA also has adocument titled “PCA100-2007, Prescriptive Design of Exterior Concrete Walls for One and TwoFamily Dwellings.” ACI 332, Code Requirements for Residential Concrete is an additionalprescriptive design guide.Reward’s engineering section also has many design aides that can be utilized for the design of wallsusing the iForm.Updated: April 2011Release: K3

The New Standard for Sustainability.Any material or product that is applied in contact with the expanded polystyrene (EPS) foamplastic material of the iForm must be compatible. Petroleum, solvent, ketones, and estersbased products are not compatible and will deteriorate the foam.Tools and MaterialsThe following tools and materials are recommended for installing Reward forms.While not all of the tools and supplies listed are typically needed to construct Reward walls,they will enable a construction professional to handle almost any project.Recommended ToolsChalk lineString lineRebar bender and cutterTape measureHammer48" (1219 mm) LevelRebar "pigtail" twisterHot knifePower sawTable or circular sawConcrete fastening system (i.e., Ramset)Step ladderConcrete vibrator - 1” (25.4 mm) or lessdiameter, low frequency, 1 hp motor max.SawzallHandsawKeyhole sawUtility knifeCordless drillFraming squareCutting pliersTransit or laserPliersPermanent markersExtension cordConcrete trowelMaterialsReward iFormsVertical and horizontal steel reinforcementConcreteRebar tie wireBar tiesBracing, alignment and scaffolding (with turnbuckle)NailsCoarse-thread screws - various lengths2" & 3" (50.8 mm and 76.2 mm)Window and door buck materialWindow and door buck anchorsUpdated: April 2011Release: K4Anchor bolts (floor, top plate)Plumbing/electrical sleevesVarious lumber sizesLow expansion spray foamFiber tapeWaterproofing materialOSB or plywoodReward’s light gauge metal starter track2 ½ x 2½ (63.5 x 63.5 mm) , 28 gaugeWaterproofing membraneTransition area material

The New Standard for Sustainability.Handling and Storing FormsReward iForms are delivered in bundles of different counts. They are packaged with corrugated trayson the bottom and top and wrapped with a clear plastic stretch wrap. The bundles are packaged incubes for easy handling. Unloading the bundles can be accomplished manually by two people orwith powered lifting equipment. Some use dollies to move bundles from location to location. Insome cases conduit pipe or 2x4’s can be placed through the ends of the bundles and used as handlesfor two people to carry.The product consists of soft expanded polystyrene material and care should be taken when handlingthe forms to avoid breaking and cracking the forms, which could affect the performance of theproduct.If form bundles are transported by opentrailer, the bundles should be securely tieddown with straps and positioned so that thewind travels through the open ends of theforms.When unloading a new shipment of product,the quality and quantity of the product shouldbe verified by signing the Bill of Lading.Contact Reward Wall Systems immediately inthe unlikely event of any problems.Bundles of forms should be stored in the samemanner as they are shipped so that the formsare in upright direction and not on their sides.If the form bundles are to be stored outside for an extended period of time, the forms must beprotected from Ultraviolet (UV) rays and other weather elements. This is accomplished by coveringand securing the bundles.EstimatingItems to consider before estimating:Ground soil conditionsDesign wind speedSeismic zoneWall heightsBackfill heightsInterior and exterior finishesAvailability and cost of concreteFootingsAvailability and cost of concretepump truckNumber of corners, windows, doors,Special angles and curvesUpdated: April 2011Release: KFloor and roof spansFire ratingsBuilding applicationBelow and/or above grade applicationNumber of storiesBrick ledgeWaterproofingWork site conditionsEngineering requirements5

The New Standard for Sustainability.Choosing the Correct iFormChoosing the correct size form is based on structural, fire, and sound requirements. The wall mustbe engineered properly and meet building codes. The engineering can be done by having an engineercalculate the requirements or by using the prescriptive engineering tables in the Reward engineeringsection or the IRC building code or PCA’s Prescriptive Method for Insulating Concrete Forms inResidential Construction. When using the prescriptive tables, the project must fall within the designparameters of the respective tables. Each building has to support both lateral loads, consisting ofwind, seismic, soil, axial loads, with both dead and live loads.U.S. Patent # 6,920,384Updated: April 2011Release: K6

The New Standard for Sustainability.Calculating the Number of Reward iFormsMethod 1 Using a floor plan and working floor by floor, calculate the total lineal length of the walls to bebuilt with iForm. Add up the number of corners. Multiply the number of corners by the figuresshown here for each respective form.Corner Form Multipliers, Lineal Feet (meters) of a Form9"(228 mm)11"(279 mm)13"(330 mm)15"(384 mm)17"(432 mm)90º Corner Extended 90 Corner 45º Corner3.16 ft4.16 ft2.67 ft(0.963 m)(1.27 m)(0.8138 m)4.50 ft2.67 ftN/A(1.37 m)(0.8138 m)4.83 ft2.67 ftN/A(1.47 m)(0.8138 m)4.16 ftN/AN/A(1.27 m)5.5 ftN/AN/A(1.676 m) This total is the total lineal length of the corner forms. Subtract the total lineal length of thecorners from the total lineal length of the walls, and divide by 4 if measuring in feet (or by 1.22 ifmeasuring in meters) to determine the number of straight forms per course. To calculate the number of courses for the wall, divide the wall height by the height of theReward form (16” or 406.4 mm). Always round up to the nearest full course. To calculate the number of straight forms needed, multiply the number of straight forms percourse by the number of courses. To determine the total number of 90 corner forms needed, count the number of 90 corners inthe building and multiply this number by the number of courses. Remember that the iForm isuniversal and the 90º corner form is both the left and right corner. To find the total number of 45 forms needed, count the number of 45 corners in the buildingand multiply by the number of courses. To find the total number of straight forms needed for the building, calculate the total squarefootage (m2) of all the window and door openings for openings greater than 4' x 5' (1219 x 1524mm). Divide this number by 5.33 square feet (or 0.495 m2) and subtract the result from the totalof straight forms determined above.Updated: April 2011Release: K7

The New Standard for Sustainability. The ledge forms and taper top forms should be calculated separately. These forms are typicallyonly used on one course and can be calculated by adding up the total lineal feet where theseproducts are used and dividing by four. Be sure to subtract this quantity from the number ofstraight forms.Method 2 To determine the total wall area containing Reward iForms, subtract any window and dooropening areas that are greater than 4'x5' (1219 x 1524 mm) from the total wall area. To determine the total number of 90 corner forms needed, count the number of 90 corners inthe building. Determine the number of courses by dividing the total wall height divide the wallheight by the height of the Reward form (16” or 406.4 mm). Multiply the number of courses bythe number of 90 corners. To determine the total number of 45 corner forms needed, count the number of 45 corners inthe building. Determine the number of courses by taking the total wall total wall height dividedby the height of the Reward form (16” or 406.4 mm). Multiply the number of courses by thenumber of 45 corners. To find the total wall area of the 90 and 45 corner forms, multiply the number of corner formsby the figures shown here for each respective form.Corner Form Multipliers, Area of Form90º Corner Extended 90 Corner 45º Corner9"4.225.553.56(228 mm) (0.392 m2)(0.516 m2)(0.331 m2)3.5611"6.00N/A(0.331 m2)(279 mm)(0.557 m2)13"6.443.56N/A(330 mm)(0.598 m2)(0.331 m2)15"5.55N/AN/A(384 mm) (0.516 m2)17"7.33N/AN/A(432 mm)(0.680 m2) To determine the total area for straight forms, subtract the total wall area of the 90 and 45 corner forms from the total wall area of Reward forms. To find the total number of straight forms needed, divide the total area for straight forms by5.33 ft2 (or 0.495 m2).Method 2 is recommended only after the building professional has estimated and built a number ofprojects.Updated: April 2011Release: K8

The New Standard for Sustainability.Method 3 Use Reward’s estimating program. A complimentary estimating program is available on theReward Wall Systems website.Estimating Additional MaterialsConcrete The amount of concrete you need depends on the size of the form being used. See the tablesbelow for the number of forms filled with one cubic yard of concrete.Number of Forms Filled by One Cubic Yard of Concrete9" (228 mm)11" (279 mm)13" (330 mm)15" (384 mm)17" (432 8.3N/AExtended90 5N/AN/AN/A8.4 (avg)N/AN/AN/ANumber of Forms Filled by One Cubic Meter of Concrete9" (228 mm)11" (279 mm)13" (330 mm)15" (384 mm)17" (432 .9N/AExtended90 5N/AN/AN/A11.0N/AN/AN/A To find the volume of concrete for the straight forms, simply divide the total number of straightforms calculated in the project by 15.1 yd3 (19.7 m3) if using the 9" iForm, 10.0 yd3 (13.1 m3) ifusing the 11" iForm, by 7.5 yd3 (9.8 m3) if using the 13" iForm, by 6.0 yd3 (7.9 m3) if using the15" iForm and by 5.0 yd3 (6.6 m3) if using the 17" Form. To find the volume of concrete for the 90 corner iForms, divide the total number of 90 cornerforms calculated in the project by 25.0 yd3 (32.7 m3) if using the 9" iForm, 11.3 yd3 (14.8 m3) ifusing the 11" iForm, by 8.1 yd3 (10.6 m3) if using the 13" iForm, by 8.3 yd3 (10.9 m3) if using the15" iForm and by 5.0 yd3 (6.5 m3) if using the 17" iForm.Updated: April 2011Release: K9

The New Standard for Sustainability. To find the volume of concrete for the 45 corner forms, divide the total number of 45 cornerforms calculated in the project by 25.5 yd3 ( 33.4 m3) for the 9" iForm, 16.5 yd3 ( 21.6 m3)for the11" iForm and 12.2 yd3 ( 16 m3) for the 13" iForm. To calculate the total volume of concrete needed for the project, add the volume of concrete forthe straight iForms to the volume of concrete for the 90 and 45 corner iForms. Be sure to make sure that the extra concrete is included for any ledge forms or taper top forms. Add one yard of concrete loss from the pump truck. Concrete is priced by the cubic yard.Reinforcement Reward walls contain both vertical and horizontal reinforcement. The engineer will determinethe size and spacing of both the vertical and horizontal reinforcement. Calculate the total linealfeet (meters) of reinforcement for each size of specified reinforcement. Reinforcement is pricedper lineal foot (meter) based on the size of reinforcement. The total lineal feet (meters) of vertical reinforcement is dependent on the spacing and wallheight. To find the total amount of vertical rebar you will need, divide the total length of the wallby the vertical reinforcement spacing. Remember to include three verticals in each corner. Next,multiply this number by the wall height. Do this for each floor level. Keep in mind that belowgrade and above-grade walls may have different size and spacing of reinforcement. The engineer will indicate how often to place the horizontal reinforcement. Multiply the numberof courses that will have horizontal reinforcement by the total lineal feet (meters) of the floorplan to find the total lineal feet (meters) of horizontal reinforcement you will need. Add the total length of each size of both horizontal and vertical reinforcement together. Add apercentage (usually 60 times the diameter of the bar being used) to the total length ofreinforcement to cover the required overlap. xLerator reinforcement for the ledge form and taper top form is figured by one xLerator forevery ledge form or taper top form.Labor The number of man hours required is dependent on the efficiency, experience and size of thecrew, number of corners, number of openings, site access, weather conditions and other details.Updated: April 2011Release: K10

The New Standard for Sustainability.Footings, Slabs, Shallow Frost Protected Footingsand Grade BeamsThe key to quick and accurate installation of Reward walls begins with properly installed footings orslabs. The footing or slab must be level, smooth and square to avoid additional costs and delayswhen installing the walls, and to ensure the walls are level. The footing or slab must be level within¼" (6.35 mm) in all directions.One method to compensate for uneven footings is to shoot a light gauge metal 90º track into thefooting or slab. The metal track is used to keep the forms in line and also to adjust uneven footingsby screwing the light gauge metal track to the forms after getting the first course of forms level.The footings are constructed using grade stakes and usually wood formwork. Reward recommendsusing Form-A-Drain, which remains in place in lieu of wood formwork on projects where there ispoor draining soil. This provides a self draining system to remove water.The purpose of the footing is to transfer and distribute the building loads without exceeding the soilbearing capacities. The footings must be properly designed to carry the building loads as required bylocal code and engineering requirements. Properly designed footings must take into considerationthe following: soil type, water table, frost depth, brick finish (if applicable), number of stories, andlateral and vertical loads. See the engineering section for soil bearing capacity and minimum width offooting table.The only unique issue that must be considered when designing footings and slabs for a Rewardbuilding is the additional dead weight of the concrete wall. The 9" iForm is 50 psf (244.1 kg/m2), the11" iForm is 75 psf (366.2 kg/m2), the 13" iForm is 100 psf (488.2 kg/m2), the 15" iForm is 125 psf(610.3 kg/m2), and the 17"iForm is 150 psf (732.4 kg/m2). when filled with concrete.Foundation to Wall ConnectionThe foundation to wall connection is very important because it is what resists the shear force at thebase of the wall to prevent the wall from deflecting inward.Any of the following three methods can be used for the structural connections between the top ofthe foundation and the wall: Ninety-degree bent vertical dowels into the foundation Straight vertical dowels into the foundation A keyway constructed on the top of the foundationOf the three methods, the most common is installing vertical dowels into the foundation.Applications where there is very little shear force at the base of the wall may be able to eliminate thedowels or keyway and rely on the friction force between the wall and foundation. The foundationmust be in compliance with the local building code and building code jurisdiction. Please see theengineering section for prescriptive vertical dowels tables.Vertical reinforcement dowels are placed into the footing or slab according to the engineeringrequirements. The dowels must be placed so that they do not interfere with the plastic ties locatedUpdated: April 2011Release: K11

The New Standard for Sustainability.6" (152.4 mm) on center. Place three vertical dowels in the corners using the dimensions shown onthe corner reinforcement detail found in the detail drawing section of this manual. From these threecorner dowels, the succeeding dowels must be placed according to the design using a space sequenceof 6" (152.4 mm) on center. The vertical dowel must have 3" (76.2 mm) of concrete cover betweenthe soil and the bottom of the dowel. The quantity of dowels may vary from the quantity of verticalwall reinforcement, as these are two independent structural elements.The dowels may be either cast-in-place with the placement of concrete for the footing or they can beinstalled later by drilling holes into the top of the footing and using an approved epoxy to secure thedowels into the footing. Be sure to mark the location of door openings to avoid the placement ofdowels in these areas.Stepped FootingsDue to sloping grade conditions, stepped footings may be required. They should be planned in 16”(406.4 mm) vertical height increments to avoid cutting forms, thereby reducing waste and labor. TheiForm is designed so that it can be ripped in half creating an 8" (203.2 mm) form. The steppedfooting can be constructed using an 8"(203.2 mm) vertical increment. The stepped footing should bea continuous footing.Frost Protected Shallow FootingA growing but yet relatively unknown type of design and construction for foundations is frostprotected shallow foundations (FPSF). This type of construction lends itself very well to insulatingconcrete forms because it reduces construction costs, decreases excavation depths, disturbs less soilat the job site and it saves energy.A FPSF is an alternative to deep conventional foundations. A foundation protected from frost heavebecause the foundation is insulated. Insulation is used to retard frost penetration below theUpdated: April 2011Release: K12

The New Standard for Sustainability.foundation and to retard heat flow from beneath the foundation. This allows shallower footingdepths, with no added risk of frost damage. In other words it is a foundation that does not extend tofrost depth, but is protected from frost heave. This application is used in cold climates where thereis seasonal ground freezing. Frost protected shallow foundations allows structurally soundfoundations as shallow as 12" (304.8 mm) or 16" (406.4 mm).Shallow frost protected footings is a good choice for these applications: Slab on grade – reduces the excavation and foundation depthsWalk-out basements – especially where there is a significant changes in gradeUnvented crawlspacesElderly, physically disabled buildings because slab on grade reduces steps inside and outsideand long rampsBuilding additionsLight commercial constructionApartments – The Fair Housing Act requires apartment buildings to have wheelchairaccessible ground floors, so slab-on-grade construction is becoming more common forapartments.FPSF was recognized in the 2000 International Residential Code, the 1995 CABO One and TwoFamily Dwelling Code, the 1988 International One and Two Family Dwelling Code, and in variousstate and local building codes.The design of the FPSF is a function of the type of building. There are different requirements forheated buildings with slab-on-grade, heated buildings and unheated buildings. The design steps,generally speaking, consist of: Selecting the site’s design Air Freezing Index Determining the insulation R-value, dimensions and footing depth based upon the AirFreezing Index Determining insulation types, thickness and protection.When installing FPSF you must make sure allowable bearing capacity of the undisturbed soilsupporting the foundation is greater than the structural loads imposed by the building; assuring thatthe site is graded to drain surface water away from the building; making sure that fill materials arecompacted properly; and providing termite protection where needed.FPSF should not be used in permafrost foundation design.Reward recommends the following reference materials for more information: The Design Guide for Frost-Protected Shallow Foundations, 2nd Edition. NAHBResearch Center, 800-638-8556 The Design and Construction of Frost-Protected Shallow Foundations, SEI/ASCE 3201. American Society of Civil Engineers, (ASCE)Updated: April 2011Release: K13

The New Standard for Sustainability.Grade Beams and Caissons or PilesSome geographical areas of the country have soilconditions that are not conducive to the installation offootings as the foundation. Footings require soils withadequate bearing capacity to support the building loads.When the soils near the surface do not have thiscapacity, or in areas where there are expansive soils,grade beams may be necessary to transfer the buildingloads to the soils. This is accomplished by installingcaissons or piles down through the weaker soil andbridging them with grade beams from pile to pile. Inexpansive soils, void forms are placed beneath thegrade beams so that the soil can

Any material or product that is applied in contact with the expanded polystyrene (EPS) foam plastic material of the iForm must be compatible. Petroleum, solvent, ketones, and esters based products are not compatible and will deteriorate the foam. Tools and Materials The following tools and materials are recommended for installing Reward forms.