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Modern Direct GlazeInstallation and Mulling InstructionsABSTRACT: Please read these instructions in their entirety before beginning to install your Marvin windowproduct. These instructions demonstrate the installation of a Marvin Modern aluminum and fiberglass window innew wood frame construction using an industry approved water management system. For installation using otherconstruction methods such as remodeling, replacement, and recessed openings refer to ASTM E2112, "StandardPractice for Installation of Exterior Windows, Doors and Skylights." Information for ASTM E2112 can be found onthe ASTM website, www.astm.org.For product specific issues, service instructions, and other field service guides, refer to the Marvin Service Manual,visit our website at www.marvin.com, or contact your Marvin representative.Regional standard practices, environmental conditions, and codes may vary and supersede the procedures contained within. The responsibility for compliance is yours: the installer, inspector, and owner(s).The procedures within these instructions are consistent with those used in testing to achieve the advertised DP rating.The English language version of this instruction is the official version and shall take precedence over any translation.2020-01-2119915887

Table of ContentsHazards and Warnings. 3What is Included in the Job Box. 3Installer and Builder Information . 3After Market Products . 4Materials Needed . 4Tools Recommended . 4Preparing the Opening . 5Rough and Masonry Opening Requirements. 5Cutting the Weather Resistive Barrier (WRB) and Pan Flashing . 6Install the Window . 9Mulling. 12Install Interior Covers . 17Installing Covers on Angled Polygons. 18Final Steps . 19Flashing the Installation . 19Insulating and Sealing the Installation-Nailing Fin . 21Exterior Sealing Procedures . 23Technical Specifications . 242020-01-21199158872Modern Direct GlazeInstallation and Mulling Instructions

Hazards and WarningsWAR N I NG!Do NOT lift or move without proper equipment.Read, understand, and follow all lift equipment manufacturers’ instructions and safety information.WAR N I NG!Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the Stateof California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.WAR N I NG!This product can expose you to chemicals including titanium oxide, which is known to the state of California to causecancer. For more information, go to www.P65Warnings.ca.gov.WAR N I NG!This product can expose you to chemicals including methanol, which is known to the state of California to causebirth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.WAR N I NG!Always practice safety! Wear the appropriate eye, ear, and hand protection, especially when working with powertools.CAUT ION!Wear gloves and protective clothing when handling the frame components. Some high-density fiberglass surfaces are not coated and can leave splinters in bare skin.What is Included in the Job BoxRefer to the content list included in your job box for specific items that are included with your order. Sealants, hardware, fasteners, and many installation related parts are included with the window. See Materials Needed on page 4for other items you will need to successfully install your Modern Direct Glaze window.Installer and Builder Informationsill). Failure to do so can void the Marvin warrantycoverage. Always provide a copy of these instructions for thecurrent homeowner. Refer to the Technical Installation Specificationssection for technical specifications regarding theinstallation of this product. These installationrequirements as well as the details in the section Plan sizing of rough opening and clearance fromexterior finishing systems to allow for normalmaterials shrinkage or shifting (e.g. wood structurewith brick veneer; allow adequate clearance at the2020-01-21199158873Modern Direct GlazeInstallation and Mulling Instructions

must be followed to achieve the advertisedPerformance Grade (PG) rating of this product.required. Follow all guidelines regarding materialuse, preparation, personal safety and disposal. It is the responsibility of the builder, installer, andsubcontractors to protect the interior and exterior ofwindows or doors from contact with harsh chemicalwashes, construction material contamination andmoisture. Damage to glazing, hardware, weatherstrip and cladding/wood can occur. Protect withpainters tape and/or protective sheathing as Contact your Marvin supplier if you have anyquestions regarding product and materials used inmanufacturing or questions on replacement parts. Please refer to the PDF version of this instructionfor further information regarding best practicesinstaller and builder information, code, and otherlegal requirements. The PDF version is the officialdocument of record.After Market ProductsAlterations to Marvin products including window films, insulating or reflective interior window treatments or additionalglazings can cause excessive heat buildup and/or condensation. They may lead to premature failures not coveredunder warranty by Marvin Windows and Doors.Before purchasing or applying any product that may affect the installation or performance of Marvin windows ordoors, contact the manufacturer of after-market product/glazings that are not supplied by Marvin and request writtenproduct use, associated warranties and damage coverage. Provide this information and warranties to the end userand/or building owner for future reference.Materials Needed Backing material (foam backer rod)You will need to provide the following items to successfully install your Marvin Modern Direct Glaze window. Shims (composite recommended) Drip Cap Perimeter sealant Flashing materials Insulation and/or low expansion foam insulationTools Recommended Tape Measure Speed square Power drill/driver Torx T20 and T25 bits Level/laser level2020-01-21199158874Modern Direct GlazeInstallation and Mulling Instructions

Preparing the OpeningRough and Masonry Opening Requirements1. Rough opening (RO) width may be up to 1 1/2" (38)wider (3/4" on each side) than the outside measurement(OM) of the frame. The RO height may be up to 3/4" (19)taller than the OM of the frame. See Figure 1.NOTE: Rough openings are tested and certified at 3/4"on each side and at the head jamb.Figure 2 Example of bracing for polygon shapes.Figure 1 RO Width and Height clearance1RO Width (3/4" on each side)2RO Height (3/4" taller than OM of frame)2. On shapes such as trapezoids, triangles, andpentagons, make sure there is proper bracing forfastening. See Figure 2.2020-01-21199158875Modern Direct GlazeInstallation and Mulling Instructions

Brick BindOn standard wood frame construction with brick veneer,make sure there is at least 1/2" (13) between the bottomof the window sill (or eventual placement of the window)and the top row of brick to avoid "brick bind". SeeFigure 3.Figure 3 Avoid brick bind, maintain 1/2" gap11/2" (13)Cutting the Weather Resistive Barrier (WRB) and Pan FlashingNOTE: This does not apply to self-adhering WRBsheathing systems.1. Make horizontal cuts to the Weather ResistiveBarrier (WRB) across the top and bottom of the RoughOpening. Make a vertical cut down the center of the RO.then make 45 degree cuts away from the corners of thetop of the RO. See Figure 4.Figure 42. Trim up from the bottom corners about 2" (51) andthen make an additional horizontal cut about 3 1/2" (89)wide. See Figure 5.2020-01-21199158876Modern Direct GlazeInstallation and Mulling Instructions

Figure 5Figure 73. Flip the top up and side flaps away and tacktemporarily. See Figure 6.NOTE: This will affect your RO height, plan accordingly.5. TYPE III Sill Pan Flash: Apply self sealing flexiblemembrane slope. See Figure 8.Figure 64. Optional: Add a continuous "Sill Wedge" out of cedarsiding or similar water resistant material to create apositive drainage slope. Glue it to the RO sill with twobeads of adhesive and screw in place. See Figure 7.Figure 81Flexible flashing membraneNOTE: Some situations call for an upturned leg at theinterior. If that is the case, do so using the excess sillflashing membrane to the interior.2020-01-21199158877Modern Direct GlazeInstallation and Mulling Instructions

6. Wrap side flaps to the interior and staple in placeabout 1 1/2" (38) from the interior edge of the opening.Cut the excess off near the staple so that a 1" -1 1/2"(25-38) strip of bare wood is exposed. Tape this edgewith seam seal tape. See Figure 9.Figure 97. Apply seam seal tape over the corners. Place plasticor composite shims at the ends and in the middle of theRO to counter the slope of the sill wedge and supportthe unit. Fasten with adhesive or finish nails. If usingfinish nails, place adhesive under shim where the nailwill penetrate. See Figure 10.Figure 102020-01-21199158878Modern Direct GlazeInstallation and Mulling Instructions

Install the WindowUsing a smartphone or similar device,scan the QR code below or click here toplay a video of this procedure.NOTE: Nail fin is used for positioning only. It is not required that you fasten the nail fin to the wall. Throughjamb installation is required using fasteners provided.Shim blocks are installed at every installation hole toprovide a flat spot for shimming. Do not remove theshim blocks. See Figure 11.Figure 111Shim blockSeek AssistanceSome large windows and/or assemblies are very heavy.Avoid injury by getting help to lift and position the window into the rough opening.WA RNING!Do NOT lift or move without proper equipment.Read, understand, and follow all lift equipment manufacturers’ instructions and safety information.2020-01-21199158879Modern Direct GlazeInstallation and Mulling Instructions

Level and Plumb1. Center the window in the opening. Level at the silland plumb the frame (interior/exterior). Shim under thejambs to bring to level if necessary. See Figure 12 andFigure 13.2. Shim the bottom corners right above the fastenerholes. Lightly fasten with the #10x3" installation screwsprovided. See Figure 14 and Figure 15.NOTE: The recommended rough opening gap is certified up to 3/4" (19) at jambs and head jamb of the window.Figure 141Shim block2ShimFigure 12Figure 15Figure 132020-01-211991588710Modern Direct GlazeInstallation and Mulling Instructions

5. If you are installing an assembly and mulling theunits in the opening, install the A1 unit first, fastening atall locations (head jamb, sill, and one jamb) and thenproceed to Mulling on page 12. See Figure 18.3. Check for square and plumb (inside/outside). Adjustshims and screws accordingly. See Figure 16.Figure 18 First unit (A1) when mulling in an opening.6. Check for square and plumb for the whole unit andthen finish fastening at every pre-drilled hole in jambs,head jambs, and sill.See Figure 19.Figure 164. Shim and lightly fasten both jambs near the top usingthe #10x3" installation screws. See Figure 17.Figure 17Figure 19 Single wide unit.7. If you are not mulling assemblies, skip to the section:Final Steps on page 19.2020-01-211991588711Modern Direct GlazeInstallation and Mulling Instructions

MullingUsing a smartphone or similar device,scan the QR code below or click here toplay a video of this procedure.Units are prepped for mulling and includean attached mull pin to the right hand jamb of the leftside unit (A1 as seen from the exterior). Subsequentunits at the middle of the mull will have the mull pin fastened to the right hand jamb at the factory. Unitsprepped for mulling will also have the shim spacers attached at the fastener locations, mull foam pads, andnailing fin where applicable. See Figure 20.I M P O R TA N TA level and flat sill is crucial when installing and mullingunits in the opening. The sill should be within 1/16" flatand level to achieve a successful mull and installation.Figure 20 A1 units prepped for field mull (viewed from interior)1Mull pin (fastened from the inside of A1 unit)2Foam pads near nail fin kerf at top and bottom.Prep for MullingNOTE: If you are mulling an assembly in place set thefirst window (A1) in the opening and fasten the jamb,sill, and head jamb following the method starting at step1 on page 10. The illustrations that follow in this sectionshow a 3-wide unit with two vertical mulls, mulled in theopening. If you are mulling the assembly before installation follow step 1 on page 12 through step 6 onpage 15.Figure 221. Apply a continuous 1/4" (6) bead of sealant along thelength of the frame. The sealant must overlap the edgeof the foam pads. See Figure 23 and Figure 24.I M P O R TA N TIf a foam block is missing simply continue the sealantbead to the edge of the frame. See Figure 25.Figure 21 Install the first window (A1)1A1 (in mull configurations)2020-01-211991588712Modern Direct GlazeInstallation and Mulling Instructions

Figure 23Figure 251If foam is missing, apply sealant full length.Figure 242020-01-211991588713Modern Direct GlazeInstallation and Mulling Instructions

Join the Assembly2. Fasten at each pre-drilled hole location with the #8 x7/16" Phillips head self drilling screws provided. SeeFigure 28.I M P O R TA N TMake sure the sill is level and flat before installing andmulling assemblies.1. Set the next unit close to the A1 unit. Clamp the twounits together making sure the windows are flush to oneanother on all planes (interior/exterior and top andbottom). See Figure 26 and Figure 27.Figure 283. Apply the exterior covers. These can be seated witha rubber mallet. Make sure the covers are flush to theexterior accessory kerf. See Figure 29.Figure 26Figure 29Figure 271Flush the frames to one another.2020-01-211991588714Modern Direct GlazeInstallation and Mulling Instructions

4. Fasten at the head jamb and sill with #10 x3"installation screws. Make sure the frame is plumb to theinterior/exterior. See Figure 30 and Figure 31.Figure 32I M P O R TA N TFigure 30Apply the mull caps between each window in multipleassemblies before joining the next window.6. Repeat the previous steps until the entire assemblyis complete. See Figure 33.Figure 315. Apply the interior aluminum covers. These arebarbed on and can be seated with a rubber mallet.Make sure the covers are flush to the interior accessorykerf. See Figure 32.Figure 332020-01-211991588715Modern Direct GlazeInstallation and Mulling Instructions

Horizontal MullsUse the techniques outlined in the previous sections toapply a horizontal mull. Install the lower units first. Theywill have the mull pin attached. Then set the top unitabove, being careful not to disturb the sealant bead untilyou have the assembly aligned correctly. SeeFigure 34.Figure 34 Horizontal mull (framing not shown for illustrative purpose)1B1 unit2A1 unit3Mull pin4#8 x 7/16" Torx T20 self drilling screwsMultiple High / Multiple Wide AssembliesOn multiple high/multiple wide assemblies a continuousmull pin must be applied to the mull direction with theshortest span. The non-continuous mull pins will be factory installed. Use the techniques outlined in the previous sections to mull the units with factory applied mullpins first. See Figure 35.Figure 35 Multiple high and wide assemblies1Mull pin factory applied.2020-01-211991588716Modern Direct GlazeInstallation and Mulling Instructions

Install Interior CoversInstall the Jamb Covers1. Slide the front of the frame cover (vinyl weather strip)into the frame kerf, rotate, and then push until the coversnaps into place. See Figure 36 and Figure 37.Figure 37NOTE: If you have a direct glaze window with angledlegs such as a triangle or pentagon, skip to InstallingCovers on Angled Polygons on page 18.Figure 36 Rectangular coversInstall the Head Jamb and Sill Covers1. Slide the front of the frame cover (vinyl weather strip)into the frame kerf and then push until the cover snapsinto place.See Figure 38.Figure 382020-01-211991588717Modern Direct GlazeInstallation and Mulling Instructions

Installing Covers on Angled PolygonsCovers for polygons such as triangles and pentagonsgo on differently from rectangular polygons. The coverson polygons with angled shapes go straight in, ratherthan rotated like rectangular units.1. Use the chart below to determine the order in whichthe covers are applied based on shape.Figure 392020-01-211991588718Modern Direct GlazeInstallation and Mulling Instructions

Final StepsFlashing the InstallationUsing a smartphone or similar device,scan the QR code below or click here toplay a video of this procedure.I M P O R TA N TNailing fin is not designed to be a weatherproof flashing.I M P O R TA N TFollow the flashing tape manufacturer’s recommendedinstructions for attaching to the building materials underthe WRB. For example, priming wet or frozen wood, application temperature, etc.Figure 411. On units that use nailing fin, apply nailing fin cornergaskets. Follow the instructions on the back of thegasket. See Figure 40.1Rigid head flash2Sealant3. Optional Skirt: Install an optional "skirt" inapplications with exposure to wind driven rain/climate.Use flashing material or a 12" (305) strip of WRB andattach to the sill of the window with seam seal tape orflashing tape. See Figure 42.Figure 402. Install a rigid head flash. Seal both horizontal andvertical legs of the rigid head flash. See Figure 41.Figure 421Skirt (WRB material or other)2Adhesive tape3Attached to sill of window4. Lap vertical strips of adhesive flashing tape onto theunit and out over the WRB. Make small diagonal cuts atthe head jamb as in Figure 43 to allow the membrane tofold back onto the exterior and frame.2020-01-211991588719Modern Direct GlazeInstallation and Mulling Instructions

NOTE: This does not apply to self adhered WRB.Figure 435. Install another layer of adhesive membrane lappingonto the head jamb of the unit and over the sheathing.The membrane flashing at the head jamb should extendand cover the flashing previously installed at the jambs.Make relief cuts and fold down so that it wraps aroundthe jamb See Figure 44 and Figure 45.Figure 467. Seal the ends of the rigid head flash by injectingsealant at each end. See Figure 47.Figure 44Figure 47Figure 456. Tape the top edge of the head jamb flashing withseam seal tape. See Figure 46.2020-01-211991588720Modern Direct GlazeInstallation and Mulling Instructions

8. Fold the head jamb WRB down over the head jambflashing. Apply seam seal tape over the diagonal cut inthe WRB. Make sure the seam seal tape laps onto theunit or casing. Tape any seams and fasteners directlyabove the unit with seam seal tape. See Figure 48.NOTE: This does not apply to self adhered WRB.Figure 48Insulating and Sealing the Installation-Nailing FinWe recommend two ways of insulating and sealing therough opening cavity. Both follow the principle that stopping air intrusion will aid in managing water intrusioninto the RO.1. Loose Fill Fiberglass Insulation. Insulate the ROcavity with loose fill fiberglass insulation. Install a backerrod and sealant at the interior plane of the RO to createa continuous air seal. See Figure 49.Figure 4912020-01-211991588721Loose fill fiberglass insulation2Backer rod3Continuous air seal (sealant)4Flashing5Sealant underneath drip6Backer rodModern Direct GlazeInstallation and Mulling Instructions

2. Low Expansion Foam. Install a backer rod at theexterior plane of the RO. Apply a low expansion/lowcompression closed cell foam in the cavity. Install abacker rod and sealant at the interior plane of the RO tocreate a continuous air seal. See Figure 50.Figure 501Low expansion foam2Backer rod3Continuous air seal (sealant)4Flashing5Sealant underneath drip cap6Backer rod2020-01-211991588722Modern Direct GlazeInstallation and Mulling Instructions

Exterior Sealing Procedures1. For ALL applications: Once the exterior finish suchas siding or brick veneer is installed, apply bead ofsealant between the finish and the frame exterior orcasing along the sides. Apply additional beadsapproximately 1"- 2" (25-51) at the ends on top of thedrip cap. Use a backer rod when necessary. SeeFigure 51 and Figure 52.Figure 52 Apply sealant between window and exterior finish athead jamb.CAUT ION!Perimeter sealant must be Grade NS Class 25 perASTM C920 and compatible with the window productand the finished exterior(s) of the building. Using improper sealant could result in sealant failure casing airand water infiltration.Figure 511Exterior sealant2Backer rod3Exterior cladding/finish4Flashing5Nailing Fin6Weather resistive barrier7Insulation8Backer rod9Interior air seal2020-01-211991588723Modern Direct GlazeInstallation and Mulling Instructions

Technical SpecificationsThe following details are specified for proper installation of the unit to meet the advertised performancegrade (PG) rating. Rough Opening Width: 1/4"-1 1/2" (6-38) wider thanunit frame outside measurement.I M P O R TA N T Rough Opening Height: 1/4"-3/4" (6-19) taller thanunit frame outside measurement.Flashing material must not contain asphalt and must becompatible with flexible PVC (vinyl) if nailing fin is usedas a backing material. Masonry Opening Width: 1/4"-1/2" (6-13) wider thanunit frame outside measurement. Masonry Opening Height: 1/8"-1/4" (3-6) taller thanunit frame outside measurement.I M P O R TA N TSealants used for installation must be Grade NS Class25 per ASTM C920 and compatible with the building exterior, window or door exterior surface, and flashing/water management materials.AT T E N T I O NArchitectural Detail Manual Specifications:Rough Opening: Width up to1 1/2"(38); Height up to3/4" (19) Optional foams used for installation must be lowexpansion only. Foam and foam application mustcomply with ASTM E2112.Masonry Opening: Width 1/4" The panning must drain water to the exterior of thecladding OR the exterior surface of a concealedweather resistive barrier. Shims are required at every fastener location. Do not use chemically treated products for shimmaterial.CAUT ION! Fasteners penetrating chemically treated lumbermust be a minimum of 0.90 oz/ft2 zinc hot dippedgalvanized or stainless steel type 304 or 316.Be aware that the use of sill pans and other barriers willdecrease the rough opening height clearance. Adjustopening dimensions accordingly. The frame must not come into direct contact withchemically treated wood products.CAUT ION!Be aware that the use of sill pans and other barriers willdecrease the rough opening height clearance. Adjustopening dimensions accordingly. The panning system used in these instructions isone component in a structure’s overall watermanagement system. It should be used inconjunction with an appropriate drainage planecompatible with the exterior wall cladding. Flashing materials must comply with ASTM E2112,and be compatible with all materials used ininstallation including panning systems, air barriersand building papers, sheathing, and the windowunit. Properly flash and/or seal all windows at theexterior perimeter.2020-01-211991588724Modern Direct GlazeInstallation and Mulling Instructions

Practice for Installation of Exterior Windows, Doors and Skylights." Information for ASTM E2112 can be found on the ASTM website, www.astm.org. For product specific issues, service instructions, and other field service guides, refer to the Marvin Service Manual, visit our website