16”-24” o.c. level 3 - top industrial

Air Barrier & Water-Resistive Barrier System InstallationResidential & Light Commercial Buildings Less Than 5 StoriesBuilding Wrap to be Installed Before WindowsWindow & Door Installation Types: Method A1 & Method B1

Building Wrap: 9' RainBuster #550 High Performance Air Barrier & Building WrapAdditional Required Installation Materials: RainBuster #501-2.83" Seam Tape4" RainBuster #440 SubZero Flashing Tape® RainBuster #900 Polycarbamate Sealant/Adhesive

Top Industrial, Inc. • 15010 Keswick St., Van Nuys, CA 91405 • 800.473.1617 • topindustrial.com

Drawings Not to Scale pg 1 of 5May 2018

Our leak & squeak eliminating systems feature high performance sealants, adhesives, flashings, tapes, and building wraps for the entire home.

Installation Guideline LEVEL 3Installation GuidelineLEVEL 3

Step 1. Install Building WrapProduct: RainBuster #550 High Performance Air Barrier &

Building Wrap

1.A Ensure that wall substrate is flat and free of protrusions and debris that could damage the building wrap. Install flashing at the sheathing/slab interface. Refer to Step 5 for specific directions regarding sheathing/slab sealing at bottom plate.

1.B Position building wrap at base of wall with the printed side facing out. Align the bottom edge with the sill plate. Building wrap should extend below sill plate a minimum of 2". Building wrap should be integrated with weep screed in stucco applications. When starting at a corner, overlap corner by a minimum of 12". Secure building wrap in place using approved fasteners along vertical edge of building wrap.

1.C Unroll building wrap horizontally covering window and door openings. Pull the building wrap taut to avoid wrinkles and creases. Secure building wrap in place using approved fasteners. Ensure building wrap is level.

1.D Install upper courses of building wrap overlapping lower courses in a weather board (shingled) fashion. Vertical and horizontal seams must be overlapped a minimum of 6".

Step 2. Install FastenersProduct: Plastic Capped Nails, Plastic Capped Screws, or

Plastic-Capped Staples (by others)

2.A Install fasteners 16"-24" on center along horizontal edge of building wrap at top and bottom (sill) plates.

2.B Install fasteners 24" on center vertically and horizontally in the field.

2.C Do not install fasteners within 2" of the sill and jambs and within 9" of the head of the window rough openings.

2.D Fasteners should be of sufficient length (minimum 1" length) to penetrate framing or fastening substrate securing the building wrap in place.

Step 3. Install Seam TapeProduct: RainBuster #501-2.83" Seam Tape

3.A Beginning at the lower course, tape all vertical seams in the building wrap using seam tape. Horizontal seams should be taped after the vertical seams in a weather board (shingled) fashion. Continue this sequence of taping the vertical and horizontal seams in subsequent courses of building wrap.

3.B Apply skip-taping at building wrap/slab or weep screed.

3.B Apply seam tape using constant and adequate pressure to ensure maximum adhesion.

6” HorizontalLap

12” Overlapat Corner

6” VerticalLap

6” HorizontalLap


6” VerticalLap

24” O.C. MAX.

2” MIN.

2” MIN.

16”-24” O.C.

6” HorizontalLap


6” VerticalLap

6” HorizontalLap


6” VerticalLap

24” O.C. MAX.

2” MIN.

2” MIN.

16”-24” O.C.







Step 4. Building Wrap/Sheathing Sealing at Top PlateProduct: RainBuster #900 Polycarbamate Sealant/ Adhesive

4.A Apply a 3/8"-1/2" continuous bead of sealant to the face of the sheathing at the top plate. Align the continuous bead of sealant with the top edge of the building wrap. Building wrap should lap over sealant bead a minimum of 1".

4.B Embed building wrap into sealant bead and apply constant and adequate pressure to the face of the building wrap to promote adhesion and ensure a continuous seal between the building wrap and sheathing.

Alternative Building Wrap/Sheathing Sealing at Top PlateProduct: 4" RainBuster #440 SubZero Flashing Tape®

Install flashing over building wrap and sheathing at the top plate. Flashing should lap over building wrap and onto the sheathing a minimum of 2". Using a J-Roller, apply pressure and roll entire surface of flashing.

24” O.C. MAX.

2” MIN.

1”

3/8”- 1/2” Sealant Behind Building Wrap

24” O.C. MAX.

2” MIN.

2”4” Flashing

2” MIN.

Step 5. Sheathing/Slab Sealing at Bottom PlateProduct: 4" RainBuster #440 SubZero Flashing Tape®

5.A Install flashing over sheathing and slab at bottom plate. Flashing should lap over sheathing and onto the slab a minimum of 2". Using a J-Roller, apply pressure and roll entire surface of flashing.







Step 6. Flashing Penetrations with Integral Flanges (Gable Vents, Dryer Vents, Fireplace Vents, Etc…)Product: 4" RainBuster #440 SubZero Flashing Tape®

RainBuster #900 Polycarbamate Sealant/Adhesive

6.A Make 45° diagonal cuts in the building wrap at the upper corners of the of the vent. Raise the flap and temporarily secure with tape.

6.B Install flashing over bottom flange. Flashing should extend past each end of the vent 4".

6.C Install flashing over side flanges. Flashing should extend past the top of the vent 3" and past the bottom of the vent 4".

6.D Install flashing over the top flange. Flashing should extend past each end of the vent 5".

6.E Using a J-Roller, apply pressure and roll entire surface of flashing.

6.F Apply a 3/8" bead of sealant around the entire vent at the vent/flashing joint. Tool to promote adhesion and ensure a water tight seal.

6.G Release the building wrap flap and embed it into the sealant at the top of the vent. Using seam tape, seal the diagonal cuts securing the building wrap flap in its original position.

Step 7. Sealing Round Penetrations (Pipes, Round Ducts, Exterior Lights, HVAC Lines, Etc…)Product: 4" RainBuster #440 SubZero Flashing Tape®

RainBuster #900 Polycarbamate Sealant/Adhesive

If the joint between the building wrap and the item penetrating it is greater than ¼" proceed to step 7.A. If the joint between the building wrap and the item penetrating it is ¼" or less, apply a ½" bead of sealant and tool it into the joint ensuring a water tight seal between the building wrap and the item penetrating it.

7.A Make 45° diagonal cuts in the building wrap at the upper corners of the penetration. Raise the flap and temporarily secure with tape.

7.B Install flashing over building wrap tight to the bottom of the penetration. Flashing should extend past each end of the penetration 4".

7.C Install flashing over building wrap tight to the sides of the penetration. If multiple pieces of flashing are required to accommodate the radius of the penetration they should be installed in weatherboard (shingled) fashion maintaining a minimum 3" lap. Flashing should extend past the top of the penetration 3" and past the bottom of the penetration 4".

Sealant

Sealant

12 3

4

6 6

5

Sealant

Sealant

12 3

4

6 6

5







7.D Install flashing over sheathing tight to the top of the penetration. Flashing should extend past each end of the vent 5".

7.E Using a J-Roller, apply pressure and roll entire surface of flashing.

7.F Apply a ½" bead of sealant around the entire penetration at the penetration/flashing joint. Tool to promote adhesion and ensure a water tight seal.

7.G Release the building wrap flap and embed it into the sealant at the top of the penetration. Using seam tape, seal the diagonal cuts securing the building wrap flap in its original position.

Step 8. Install Windows & DoorsPlease reference the RainBuster Leak Free Window Installation Procedures, Method A1 and Method B1. Installation procedures must utilize self-adhered flashing membrane or flashing tape (no mechanically attached flashings). There are multiple procedures available to address flat wall, shallow recess, and deep recess conditions. For additional information regarding window installation procedures specific to this building wrap installation guideline please call (800) 473-1617 or visit www.topindustrial.com.

General Recommendations

Building Wrap Installation SequencingIn this guideline, the building wrap should be installed after the framing is completed and the roof sheathing, step flashing, and kick out flashings have been installed and before the windows and doors are installed.

ContinuityBuilding wrap should be installed in a weather board (shingled) fashion throughout the building wrap installation to ensure continuity of the water-resistive barrier. Begin by installing the building wrap at the bottom of the structure and continue installing subsequent courses in a weather board (shingled) fashion covering the entire structure including unconditioned spaces.

TerminationsBuilding wrap should lap over step flashing, kick out flashing, roof-to-wall flashing, and thru wall flashings in a weather board (shingled)

fashion. Integrate weep screed and expansion joints with flashing and building wrap to maintain continuity of the water-resistive barrier. Apply seam tape at all terminations.

Build Wrap Integration with Window & Door Head FlashingBuilding wrap should lap over window & door head flashing in a weather board (shingled) fashion. Apply seam tape at 45° angle cuts ensuring a water tight seal at the seams. Apply seam tape at all window/door heads.

Repairing Tears and HolesDuring the course of normal construction tears, cuts, and holes in the building wrap may occur. Small repairs (less than 1") can be repaired using seam tape, flashing, or sealant. Larger repairs (greater than 1") can be repaired by cutting a piece of building wrap to cover the hole and integrating it in a weather board (shingled) fashion. Tape all seams created by the repair.

Cantilevered FloorsBegin at the wall area below the cantilevered floor. Install the building wrap up the wall, across the underside of the cantilevered floor, and up the face and sides of the cantilevered wall a minimum of 6". Inside corners should be as tight as possible. Tape all corners. Upper course of building wrap should overlap lower course at the bottom of the cantilevered wall a minimum of 6".







Gable EndsCover entire gable end with building wrap maintaining a 6"-12" overlap at the outside corners. Remove excess building wrap and tape all seams.

3-Coat Stucco (Convention stucco) & Stone VeneerWhen building wrap is installed behind 3-coat stucco or stone veneer, a second intervening layer of building wrap, Grade D building paper, felt, or the paper backing of paper-backed lath should be installed over the building wrap separating the building wrap from the stucco or stone veneer. The first layer of building wrap (installed directly over the sheathing or studs) serves as the water-resistive barrier and is integrated with the window and door flashing, kick out flashing, roof-to-wall flashing, thru wall flashing, and weep screeds. The lath should be installed over the second intervening layer. The layers should be installed independently creating two separate continuous planes. The water-resistive barrier and integrated flashings are intended to drain between the two layers.

1-Coat StuccoWhen building wrap is installed in 1-coat stucco applications the rigid foam board acts as the intervening, substantially non-water-absorbing second layer. The first layer of building wrap (installed directly over the sheathing or studs) serves as the water-resistive barrier and is integrated with the window and door flashing, kick out flashing, roof-to-wall flashing, thru wall flashing, and weep screeds. The lath should be installed over the second intervening layer (ridged foam board). The layers should be installed independently creating two separate continuous planes. The water-resistive barrier and integrated flashings are intended to drain between the two layers.

Special Installation ConsiderationsThis installation guide applies to buildings that are less than 5 stories above grade. These guidelines are not intended to address all possible combinations of construction materials and wall assemblies. The installation information provided is intended only as a general guide for installers, builders, architects, and other design professionals. Compliance with applicable codes and proper installation of the appropriate products are critical components of preventing water intrusion. Always verify the intended application is compliant with local building codes.

16”-24” o.c. level 3 - top industrial

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