Spec Disk 1998 Spring 4.0/Spec Disk 1998 Spring 4.0.iso/text/07242dry.txt

Text File | 1998-06-10 | 27.0 KB | 652 lines

                         SECTION 07242

               PRESSURE-EQUALIZED RAINSCREEN EIFS

NOTE ** This section is based on the Infinity7 System
        manufactured by Dryvit7 Systems, Inc., at the
        following address:
NOTE **     One Energy Way
NOTE **     P.O. Box 1014
NOTE **     West Warwick RI 02893
NOTE **     Tel: [phone] and [phone]
NOTE **
NOTE ** SECTION 07242 - PRESSURE-EQUALIZED RAINSCREEN EIFS,
        Copyright 1998, The Architect's Catalog, Inc.

PART 1  GENERAL

1.1 SECTION INCLUDES

    A.  Exterior Insulation and Finish System (EIFS) configured
        in a cavity wall design capable of providing pressure
        equalization and moisture drainage technology.

1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this
        project; add others as required.

    A.  Section 03300 - Cast-In-Place Concrete.

    B.  Section 04810 - Unit Masonry Assemblies.

    C.  Section 05400 - Cold-Formed Metal Framing.

    D.  Section 06100 - Rough Carpentry.

    E.  Section 06115 - Sheathing.

    F.  Section 07210 - Building Insulation.

    G.  Section 07600 - Flashing and Sheet Metal.

    H.  Section 07900 - Joint Sealers.

1.3 REFERENCES

    A.  ASCE 7 - Minimum Design Loads for Buildings and Other
        Structures;  American Society of Civil Engineers.

    B.  ASTM C 67 - Standard Test Methods of Sampling and Testing
        Brick and Structural Clay Tile.

    C.  ASTM C 150 - Standard Specification for Portland Cement.

    D.  ASTM C 297 - Standard Test Method for Tensile Bond
        Strength of Flat Sandwich Constructions in Flatwise
        Plane.

    E.  ASTM C 794 - Test Method for Adhesion-in-Peel of
        Elastomeric Joint Sealants

    F.  ASTM C 1063 - Specification for Installation of Lathing
        and Furring to Receive Interior and Exterior Portland
        Cement-Based Plaster.

    G.  ASTM C 1135 - Test Method for Determining Tensile
        Adhesion Properties of Structural Sealants.

    H.  ASTM C 1177 - Standard Specification for Glass Mat Gypsum
        Board Substrate for Use as Sheathing.

    I.  ASTM D 1784  - Specification for Rigid Poly(Vinyl
        Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl
        Chloride) (CPVC) Compounds.

    J.  ASTM D 2247 - Standard Practice for Testing Water
        Resistance of Coatings in 100% Relative Humidity.

    K.  ASTM E 84 - Standard Test Method for Surface Burning
        Characteristics of Building Materials.

    L.  ASTM E 108 - Standard Test Methods for Fire Tests of Roof
        Coverings.

    M.  ASTM E 119 - Test Methods for Fire Tests of Building
        Construction and Materials.

    N.  ASTM E 283 - Standard Test Method for Determining the
        Rate of Air Leakage Through Exterior Windows, Curtain
        Walls, and Doors Under Specified Pressure Differences
        Across the Specimen.

    O.  ASTM E 330 - Standard Test Method for Structural
        Performance of Exterior Windows, Curtain Walls, and Doors
        By Uniform Static Air Pressure Difference.

    P.  ASTM E 331 - Standard Test Method for Water Penetration
        of Exterior Windows, Curtain Wall, and Doors by Uniform
        Static Air Pressure Difference.

    Q.  ASTM G 23 - Standard Practice for Operating Light-
        Exposure Apparatus (Carbon-Arc Type) With and Without
        Water for Exposure of Nonmetallic Materials.

    R.  EIMA 101.86 - Standard Test Method for Resistance of
        Exterior Insulation Finish Systems to the Effects of
        Rapid Deformation (Impact);  EIFS Industry Members
        Association.

1.4 DESIGN REQUIREMENTS

    A.  Substrate:  Comply with the following:
        1.  Maximum deflection:  1/240 of span, under full
            flexural design loads.
        2.  Flatness:  Flat within 1/4 inch, measured from any
            point within a 4 foot radius.
        3.  Material:  Dens-Glass Gold, meeting requirements of
            ASTM C 1177 at time of EIFS application.

    B.  Details:
        1.  Edges:  Encapsulate insulation board edges in
            reinforced base coat at all system terminations.
        2.  Slopes:  6 inches in 12 inches minimum slope; 12
            inches maximum length of sloped area.
        3.  Roofs:  System shall not be used for areas defined as
            roofs by applicable building code.
NOTE ** The following paragraph applies only to pressure
        equalized system.  Retain if contractor is to
        provide compartment design for Architect's
        approval.  If compartment design is to be
        responsibility of Architect or Architect's
        consultant, delete the following paragraph
        altogether.

    C.  Compartmentalization:
        1.  Divide building into compartments, or location zones,
            which approximate areas of differing wind pressures.
            Compartment boundaries shall coincide with the
            location zones as defined by ASCE 7-95 or wind tunnel
            studies.
        2.  Vertical Elevations:  Divide with horizontal
            separation at intervals not in excess of 30 feet.
NOTE ** The following paragraph applies only to pressure
        equalized system.  Retain if contractor is to
        provide venting design for Architect's approval.
        If venting design is to be responsibility of
        Architect or Architect's consultant, delete the
        following paragraph altogether.

    D.  Venting:  Provide minimum 2.25 square inches of vent area
        for every 300 square feet of wall area, employing Dryvit
        Vent Assembly exclusively.

    E.  Terminations:
        1.  Hold system back from adjoining materials 3/4 inch
            (19 mm) minimum for sealant application.  See
            Dryvit's Infinity Installation Details, DS120.
        2.  Terminate Infinity 8 inches (200 mm) minimum above
            finished grade.
        3.  Cover Infinity terminations along tops of parapet
            walls with a continuous metal coping.

1.5 PERFORMANCE REQUIREMENTS

    A.  Comply with the following for durability and structural
        performance of completed system:
        1.  Wind Load:  100 psf minimum, per ASTM E 330.
        2.  Water Penetration:  No penetration per ASTM E 331.
        3.  Water Resistance:  Passes, per ASTM D 2247.
        4.  Dynamic Pressure Equalization:  At 750 Pa, K = 0.99;
            phi = 3.7 degrees; per National Research Council of
            Canada.
        5.  Impact:  I.S. Reinforcing Mesh 25-49 inch-lbs.,
            Panzer7 20 with I.S. Reinforcing Mesh greater than
            350 inch-lbs, per EIMA 101.86.
        6.  Absorption/Freeze/Thaw:  Passes ICBO Procedure, 10
            cycles.
        7.  Accelerated Weathering:  Passes after 2,000 hours,
            per ASTM G 23.
        8.  Absorption Freeze/Thaw: Passes after 60 cycles, per
            ASTM C 67.
        9.  Tensile Bond:  Passed ICBO procedure; passed
            accelerated weathering, per ASTM C 297.
        10. Air Leakage:  Less than 0.001 CFM/sq. ft. (0.3
            L/min/sq. m), per ASTM E 283.
        11. Moisture Drainage Efficiency:  Minimum 95 percent,
            per ASTM E 331 (modified).
        12. Transverse Load Test:  Negative 100 psf (4.8 kPa)
            minimum, par ASTM E 330.
    B.  Comply with the following for fire performance of
        completed system:
        1.  Fire Testing:  No propagation, per ASTM E 108.
        2.  Multi-Story Test:  Passed UBC 26-9 ISMA Multi-Story
            Test.
        3.  Full Scale Test:  Passed ASTM E 108 (Modified).
        4.  Rated Wall Test:  Passed ASTM E 119 (one hour).
        5.  BOCA Radiant Heat Ignitability Test:  Passed.
        6.  Surface Burning, Insulation Board:  Flame spread less
            than 25, smoke developed less than 450, per
            ASTM E 84.
        7.  Surface Burning, Infinitex Finish:  Flame spread 10,
            smoke developed 5, per ASTM E 84.
        8.  Surface Burning, Dryshield ABA:  Flame spread 5,
            smoke developed 0, per ASTM E 84.
        9.  Surface Burning, I.S. Base:  Flame spread 3, smoke
            developed 0, per ASTM E 84.
        10. Surface Burning, Stone Mist:  Flame spread 10, smoke
            developed 30, per ASTM E 84.
    C.  Comply with the following for sealant testing:
        1.  Adhesion In Peel:  5 lbs/inch (89 kg/m) minimum, per
            ASTM C 794.
        2.  Tensile Bond at 50 Percent Elongation, per
            ASTM C 1135 (modified):
            a.  Dry:  20 psi (138 kPa).
            b.  1 and 7 Day Immersion:  15 psi (104 kPa).
            c.  Frozen:  20 psi (138 kPa).
        3.  Modulus of Elasticity at 50 Percent Elongation, per
            ASTM C 1135 (modified):
            a.  At Minus 40 Degrees F. (Minus 40 Degrees C):  35
                psi (241 kPa).
            b.  At 180 Degrees F. (82.3 Degrees C):  20 psi (138
                kPa).

1.6 SUBMITTALS

    A.  Submit under provisions of Section 01300.

    B.  Product Data:  Manufacturer's descriptive literature for
        each specified product, including complete installation
        instructions.
NOTE ** Retain the following only for pressure equalized
        system, and only if Contractor is to provide layout
        of Infinity.

    C.  Shop Drawings:  Include layout of compartment and venting
        systems, layout of expansion joints, and typical details.

    D.  Quality Assurance Submittals:
        1.  Submit results of full scale air leakage test
            performed in accordance with ASTM E 283 and conducted
            by a recognized independent testing laboratory.
        2.  Submit results of dynamic pressure equalization
            evaluation conducted in accordance with procedures
            developed by the National Research Council of Canada,
            Institute for Research in Construction by a
            recognized independent testing laboratory.
        3.  Submit full scale ISMA Multi-Story Fire Test in
            accordance with UBC 26-9 procedure.
        4.  Material shall be manufactured at a facility covered
            by a current ISO 9001 certification.

    E.  Closeout Submittals:  Warranty documents, issued and
        executed by manufacturer of EIFS materials and installer.

1.7 QUALITY ASSURANCE

    A.  Qualifications:
        1.  Manufacturer of EIFS Materials:  Minimum five (5)
            years documented experience producing EIFS materials
            specified in this section, sponsor of applicator
            certification program, and sponsor of certification
            and quality assurance program for manufacturers of
            materials for EIFS installations not produced by EIFS
            materials manufacturer.
        2.  Manufacturer of Insulation Materials:  Manufacturer
            having insulating board product listed as meeting
            EIFS materials manufacturer's insulation board
            specification, and as participant in EIFS
            manufacturer's third-party certification and quality
            assurance program.
        3.  Installer:  Listed by manufacturer of EIFS materials
            as a trained contractor and currently certified for
            installation of the Infinity system.

    B.  Mock-Ups:
        1.  Construct mock-up of size indicated on drawings;
            locate on project site as directed by Architect.
        2.  Prepare substrate and apply finish as specified in
            this section.
        3.  Maintain mock-up at project site until Architect
            directs its removal.

    C.  Pre-Installation Meeting:  Conduct pre-installation
        meeting at project site not less than one week before
        beginning work of this section, to review contract
        documents.  Require attendance by representatives of
        Owner, Architect, Contractor, independent inspection
        agency, manufacturers of major systems, and installers of
        EIFS and joint sealers.

1.8 DELIVERY, STORAGE, AND HANDLING

    A.  Packing, Shipping, Handling and Unloading:  Deliver
        products to project site in manufacturer's labeled and
        sealed packaging.

    B.  Acceptance at Site:  Accept only products in sealed in
        unopened manufacturer's packaging with labels intact.

    C.  Storage and Protection:
        1.  Store products in manufacturer's unopened packaging
            until installation.
        2.  Maintain dry storage area at minimum 40 degrees F for
            products until removal for installation.
        3.  Take precautions to avoid condensation and excessive
            heat build-up when using tarpaulins or plastic sheet
            coverings.

1.9 PROJECT CONDITIONS

    A.  Environmental Requirements:
        1.  Applying products of this section during periods of
            inclement weather is prohibited, except where
            surfaces to receive products are protected from
            weather during application and until applied products
            are cured.
        2.  Apply products of this section only at minimum
            ambient temperature of 40 degrees F and when minimum
            ambient temperature will remain minimum 40 degrees F
            for following 24 hour period.

    B.  Sequencing and Scheduling:
        1.  Coordinate installation of work of this section with
            other work.
        2.  Employ sufficient equipment and personnel to ensure a
            continuous operation and an installation free of cold
            joints, scaffold lines, texture variations, and other
            irregularities.

1.10    WARRANTY

    A.  Manufacturer's Warranty:  Manufacturer's performance
        warranty against water intrusion through the system and
        into wall cavity, as follows:
        1.  Pressure Equalized System:  12 years.
        2.  Non-Compartmentalized System:  10 years.

    B.  Installer's Warranty:  Written limited 5-year labor
        warranty.


PART 2  PRODUCTS

2.1 MANUFACTURERS

    A.  Acceptable EIFS System Manufacturer:  Dryvit Systems,
        Inc.; One Energy Way, P.O. Box 1014, West Warwick RI
        02893; ASD. Tel: [phone] and [phone].

    B.  Acceptable Substrate Manufacturer:  Georgia Pacific
        Corporation.

    C.  Acceptable Joint Sealer Manufacturer:  Dow Corning Corp.
NOTE ** Delete one of the two paragraphs below; coordinate
        with Division 1 requirements.
    D.  Requests for substitutions will be considered in
        accordance with provisions of Section 01600.

    E.  Substitutions:  Not permitted.

2.2 MATERIALS

    A.  Substrate:  Silicone treated gypsum core board, surfaced
        with inorganic glass mats and a gold color, alkali-
        resistant coating; thickness of 1/2 inch and 5/8 inch, as
        indicated; type X fire-resistant.
        1.  Provide Dens-Glass Gold by Georgia-Pacific
            Corporation.

    B.  Air Barrier Components:
        1.  Polymer:  High performance polymer based blend
            material.
            a.  Provide DryShield ABA by Dryvit Systems, Inc.
        2.  Portland Cement:  ASTM C 150, Type I, I-II, or II,
            white or gray in color, fresh and free of lumps.
        3.  Grid Tape:  Open weave pressure sensitive fiberglass
            mesh available in rolls 4 inches wide by 100 yards
            long.
            a.  Provide Dryvit Grid Tape.
        4.  Flashing Tape:  High density polyethylene film backed
            with a rubberized asphalt adhesive available in rolls
            4 inches and 6 inches wide by 100 feet long.
            a.  Provide Dryvit Flashing Tape.

    C.  Adhesive Material:
        1.  Polymer:  High performance polymer based blend
            material.
            a.  Provide DryShield ABA by Dryvit Systems, Inc.
        2.  Portland Cement:  ASTM C 150, Type I, I-II, or II,
            white or gray in color, fresh and free of lumps.

    D.  I.S. Insulation Board:  Aged, expanded polystyrene with a
        nominal density of 1.0 lb per cubic foot, and meeting
        current published specifications of Dryvit's Publication
        DS131.
        1.  Minimum density for every board supplied for the work
            shall be 0.95 pcf, not as an average.
        2.  Dimensions:  2 ft by 4 ft maximum, with minimum
            thickness of 2 inches.  Provide 45 degree factory cut
            bevels at perimeter, as indicated in Infinity
            Installation Details DS120.
        3.  Back Surface:  Factory cut vertical grooves running
            the width of the board and measuring 1/4 inch deep by
            1 inch wide, positioned 12 inches on center.

    E.  I.S. Insulation Board Closure Blocks:  Aged, expanded
        polystyrene with a nominal density of 1.0 lb per cubic
        foot, and meeting current published specifications of
        Dryvit's Publication DS131.
        1.  Minimum density for every board supplied for the work
            shall be 0.95 pcf, not as an average.
        2.  Dimensions: Minimum 6 inches wide.

    F.  Dryvit Starter Strip:  Expanded polystyrene configured to
        receive Dryvit Vent Track and Dryvit Track.
        1.  Dimensions:  2 inches by 6 inches by 48 inches.
        2.  Locations:  Base of all walls, base of horizontal
            compartments, head of windows, and other openings.

    G.  Dryvit Vent Assembly:  Expanded polystyrene configured to
        contain Dryvit Vent Material and receive Dryvit Vent
        Track.
        1.  Locations:  Base of all walls and base of horizontal
            compartments.
        2.  Vent Material:  Formed aggregate matrix capable of
            draining water;  2 inches by 6 inches by 10 inches.

    H.  Dryvit Vent Track:  J-shaped track complying with
        ASTM D 1784 and ASTM C 1063 and containing a slot for
        venting and drainage.
        1.  Locations:  Base of all walls and base of horizontal
            compartments.

    I.  Dryvit Track:  Solid, J-shaped track complying with
        ASTM D 1784 and ASTM C 1063.
        1.  Locations:  Above Dryvit Starter Strip.

    J.  Reinforcing Mesh:
        1.  I.S. Reinforcing MeshJ:
            a.  Minimum weight:  5 oz per sq. yard.
            b.  Minimum tensile strength:  225 pounds/inch.
        2.  Panzer 20 Mesh:
            a.  Minimum weight:  20 oz per sq. yard.
            b.  Minimum tensile strength:  550 pounds/inch.
        3.  Corner Mesh:
            a.  Minimum weight:  7.2 oz per sq. yard.
            b.  Minimum tensile strength:  274 pounds/inch.
        4.  Detail(R) Mesh:
            a.  Minimum weight:  4.3 oz per sq. yard.
            b.  Minimum tensile strength:  150 pounds/inch.

    K.  I.S. Base Material:
        1.  Acrylic base material.
        2.  Portland Cement:  ASTM C 150, Type I, I-II, or II,
            white or gray in color, fresh and free of lumps.

    L.  Finish Material:
        1.  Elastomeric finish with quartz aggregate, mildewcide
            chemistry, and dirt resistant technology:
            a.  Coarse Texture:  Infinitex QP.
            b.  Rough Pebble Texture:  Infinitex SP.
            c.  Fine Pebble-Like Texture:  Infinitex SPF.
            d.  Smooth Texture:  Infinitex ADB.
        2.  Specialty finish:
            a.  Blend of natural aggregates varying in size and
                color.
                1)  Ameristone, multi-colored flamed granite
                    appearance.
                2)  Stone Mist, ceramically-colored quartz
                    aggregate.

    M.  Primer:  A water-based, pigmented acrylic primer.
        1.  Provide Color Prime.

    N.  Coatings:
        1.  Non-textured, water based acrylic coating:  Demandit
            PMR.

    O.  Joint Sealer Materials:
        1.  Primer:  Dow 1200 Primer.
        2.  Ultra-Low-Modulus Silicone Sealant:  Dow Corning 790.
        3.  Medium Modulus Sealant:  Dow Corning 791 or 795.
            a.  Application:  Sealing between EIFS and aluminum
                frames only.

    P.  Water:  Clean and potable.

2.3 MIXES

    A.  Air Barrier:  Mix DryShield ABA one-to-one by weight with
        Portland cement.
    B.  Adhesive Material:  Mix DryShield ABA one-to-one by
        weight with Portland cement.
    C.  Base Material:  Mix I.S. Base two-to-one by weight with
        Portland cement.

2.4 MIXING

    A.  Perform all mixing with a clean mixer equivalent to
        Goldblatt Jiffler Mixer No. 15311H7, powered by a 1/2
        inch drill or equivalent, at 400-500 rpm.


PART 3  EXECUTION

3.1 EXAMINATION

    A.  Verification of Conditions:
        1.  Substrates are in proper condition to receive
            Infinity.
NOTE ** Ensure that expansion joints are located and
        detailed on drawings; consult manufacturer's
        product data for recommended types and spacings.
NOTE **
NOTE ** Dryvit Systems, Inc. recommends a minimum 3/4 inch
        wide joint;  design and location is the
        responsibility of the designer.  Continuous
        expansion joints for the Infinity system shall be
        installed but not limited to the following
        locations:
NOTE ** 1.  Where expansion joints occur in the substrate.
NOTE ** 2.  Where building expansion joints occur.
NOTE ** 3.  When Infinity abuts a dissimilar material.
NOTE ** 4.  At floor lines in wood frame construction.
NOTE ** 5.  Where substrate materials change.
NOTE ** 6.  At changes in roof line, building shape, or
        structural system.
NOTE ** 7.  At a maximum of 75 feet in long, continuous
        elevations.
        2.  Expansion joints are located and sized as indicated
            on drawings.
        3.  Products indicated to be installed in surfaces to
            receive Infinity are installed in correct locations.

    B.  Installer's Examination:
        1.  Have installer of this section examine conditions
            under which construction activities of this section
            are to be performed, then submit written notification
            if such conditions are unacceptable.
        2.  Transmit two copies of installer's report to
            Architect within 24 hours of receipt.
        3.  Beginning construction activities of this section
            before unacceptable conditions have been corrected is
            prohibited.
        4.  Beginning construction activities of this section
            indicates installer's acceptance of conditions.

3.2 PREPARATION

    A.  Protection:  Mask surfaces of adjacent materials to
        prevent damage to finishes.

    B.  Surface Preparation:  Prepare surfaces to receive
        Infinity in accordance with manufacturer's printed
        installation instructions.

3.3 INSTALLATION

    A.  Comply with manufacturer's latest printed instructions
        for installation of each system component.

    B.  Substrate:  Install in accordance with Georgia-Pacific
        Bulletin No. 94-2; Dens-Glass Gold Application Procedures
        for Dryvit Infinity Series.
        1.  Examine installed substrate to verify that it meets
            specified performance criteria and is clean, dry,
            free of grease, oil, paint, and other foreign
            materials.
        2.  Replace any areas of substrate not in compliance with
            specified requirements or where gaps or damage to
            surface exceed 3/8 inch in any direction.

    C.  Air Barrier:
        1.  Install pressure sensitive grid tape at all vertical
            and horizontal joints, exposed edges at terminations,
            and inside and outside corners of substrate.
        2.  Apply Dryshield ABA mixture to substrate, including
            exposed edges, prior to installing I.S. insulation
            board.
        3.  Cover all expansion joints with flashing tape.

    D.  Accessories:
        1.  Install Dryvit Starter Strip, Dryvit Vent Assembly,
            and Dryvit Vent Track at the base of walls and the
            base of horizontal compartments, in compliance with
            manufacturer's typical details and printed
            instructions.
        2.  Install I.S. Insulation Board Closure Blocks around
            the perimeter of all openings and to close off
            vertical compartments where indicated.

    E.  I.S. Insulation Board:
        1.  Apply insulation board to completed air barrier in
            running bond pattern starting from base of wall, with
            long edges oriented horizontally.
            a.  Begin in field of wall and work outward to
                corners, ensuring alignment of vertical drainage
                grooves.
            b.  Offset joints in insulation board from joints in
                substrate by a minimum of 8 inches.
        2.  Install I.S. Insulation Board Closure Blocks at
            corners in staggered and interlocked pattern, field
            cutting adjacent I.S. insulation board as necessary
            to achieve proper fit.
        3.  Precut insulation board to fit openings, corners, or
            projections.  Do not allow board edges to align with
            corners of wall openings.

    F.  Base and Finish Coat Application:  Comply with
        manufacturer's detailed installation instructions.
        1.  Install double layer of reinforcing mesh at ground
            floor and high traffic areas, as indicated on
            drawings.  In these areas, use mesh types specified
            but not less than base layer of Panzer 15 and top
            layer of I.S. Reinforcing Mesh.
        2.  Reinforce corners by double wrapping reinforcing mesh
            or by using corner mesh.
        3.  Reinforce corners of openings using strips of Detail
            Reinforcing Mesh laid at a 45 degree angle.
        4.  Cover terminations of Infinity System with continuous
            metal coping, as shown in manufacturer's standard
            details.

    G.  Joint Sealers:  Install sealants in accordance with Dow
        Corning Procedures for the installation of Dow Corning
        Silicone Building Sealants with Dryvit Infinity System.

3.4 PROTECTION

    A.  Protect finishes from damage by subsequent construction
        activities until Date of Substantial Completion.

    B.  Repair finishes damaged by subsequent construction
        activities in accordance with manufacturer's printed
        installation instructions; replace finish to extent of
        nearest adjacent termination each way at areas where
        repair to finish is judged unacceptable.

    C.  Architect will be sole judge of acceptability of repaired
        finishes.
NOTE ** Complete the following suggested schedule if more
        than one finish or color is required for project;
        delete Article if not required.

3.5 SCHEDULES

    A.  Location:  _______________.
        1.  Texture:  ____________.
        2.  Color:  ______________.


                         END OF SECTION