Stucco Installation Report

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Report Date May 18, 2006 Stucco 3rd Party-Final Report 123 Anywhere Drive Report Prepared For: General Contractor

description

Third party inspection report for proper stucco installation

Transcript of Stucco Installation Report

Page 1: Stucco Installation Report

Report Date

May 18, 2006

Stucco 3rd Party-Final Report

123 Anywhere Drive

Report Prepared For:

General Contractor

Page 2: Stucco Installation Report

Guest House--Front Elevation

Front elevation of guest house/second garage before windows on foundation were padded out with EPS board and PVC accessories/lath were installed over upper level of wood framing.

Window nailing fins padded out with expanded poly-styrene (EPS) board and bead/lath installation over wood framed walls.

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Guest House--Right Elevation

Right elevation of guest house before installation of PVC accessories and 2.5 self-furring diamond lath over wood framed wall space.

Lath installation with necessary accessories on guest house right elevation wall.

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Guest House--Rear Elevation

Rear elevation of guest house just as the lath and bead stage had begun.

After PVC control joints, roofline casing bead, foundation weep screed and lath system were installed.

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Guest House--Left Elevation

Left side of front garage before foundation bead and framed wall lath system were installed.

PVC cornerbead installed on CMU foundation; lath system installed on framed walls.

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Front Elevation 1

Front left section of wall space before installation of foundation wall accessories and lath system.

Front left elevation section during lath and bead system installation. Note omission of control joints off openings as requested by builder--secondary reinforcing lath strips were installed to strengthen corners in lieu of vertical control joints.

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Front Elevation 2

Front elevation photo before lath and bead system installation.

All wall space has been lathed and scratched.

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Front Elevation 3

Front elevation before required stucco components were installed.

All front elevation wall space except for front entry arches, which need to have framing deficiencies corrected, is lathed and scratched.

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Right Elevation

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Entire right elevation wall space before system components were installed.

Right elevation after installation of bead/lath system and necessary control/expansion joints.

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Rear Elevation 1

Rear elevation before lath system installation. Arrow denotes area where builder applied additional flashing tape to flat horizontal surface.

Entire rear elevation, including radius walls and arches, is complete with lath system. The scratch and texture coats have already begun

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Rear Elevation 2

Rear decks and arches before lath system was installed. Now that the waterproofing is complete, applicator has lathed all areas as required for application of plaster system.

Completed rear elevation lath and bead system.

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Left Elevation

Left elevation photo of wood framed wall before installation of bead and lath system.

After installation of lath/bead system and texture coat on framed wall.

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Detail Photos #1

3/4" PVC case bead installed 2" off roofline as required. Kickout flashing with hot mop installed by GC.

1/2" PVC case bead and paperback lath system installed over forti-flash to prevent plaster delamination.

PVC case bead installed 1/4" off perimeter of wood framed openings to allow for installation of engineered sealant joints.

PVC 780 foundation weep screed installed at CMU/framing intersection as required by ASTM.

Plaster stop bead installed at pre-cast column headers.

Vertical PVC expansion joint installed on right elevation wall to break up wall space every 144sqft.

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Detail Photos #2

Perfect mitered corners of PVC corner bead on garage side HVAC wall.

Reinforcing lath "butterfly" strips installed on corners of windows to omit control joints and help restrict cracking as specified.

Again, additional reinforcement off window corners were installed to help control cracking off jambs.

Two (2) chimneys with cupola caps complete with lath and bead system.

All windows protected with window film and clean release tape.

Lath system was run continuously from rear master radius wall onto arches for aesthetic purposes. PVC corner bead installed.

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Scratch/Texture Photos

Fibers added into scratch coat for additional strength and as applicator contract states.

Horizontal scratch coat being applied to wood framed walls over lath system.

Soffits and windows are protected from scratch coat process which is almost complete on the front elevation.

Texture coat is complete on entire guest house. Windows were padded out with EPS, beaded, and then lathed where necessary.

Scratch coat is complete except for the arches which need to be remediated to correct framing issues.

Guest house during application of scratch and texture coat--now 100% complete.

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Guest House-Completion Photos

Front Elevation of garage/guest house upon completion of stucco system--paint samples present.

Right elevation of guest house after stucco on lower CMU and upper wood framed/sheathed walls.

Rear elevation guest house 100% complete. Refer to previous elevation for detail photos during construction.

Left elevation of garage is complete. Circle denotes area of bleed through on CMU which is being corrected.

Interior garage walls complete with 1/2" sand float texture system where required.

1/2" PVC case bead had to be employed on garage walls to compensate for design issues around openings-discussed w/ GC.

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Main House-Completion Photos #1

Main house photo #1 illustrating completion of stucco texture to all exterior walls.

Main house photo #2 illustrating completion of stucco system with soft adobe float and scoring where specified (arrows).

Right elevation complete with texture coat. Note kickout flashing is functioning properly as visible from water path.

Vertical control joints were employed on these opening due to size and hidden location.

Rear elevation photo #1 illustrating stucco system is complete on all walls.

Rear elevation photo #2 illustrating stucco system complete to all exterior walls.

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Main House-Completion Photos #2

Rear elevation arch window detail padded out with poly-isocyanurate board (quick-r) and beaded off exercise room.

Left elevation exterior walls complete with stucco system on both CMU(lower) and wood (upper) substrates.

Left/front elevation photo illustrating exterior wall system is complete.

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Detail Photos-Post Application

Texture chosen was soft adobe trowel finish. Arrow indicates 1/4" joints left around openings for expansion/contraction.

Bevel/slope installed on all horizontal surfaces as required to prevent standing water.

Note stucco system has been terminated above rooflines as required. Kickout flashings will require sealant.

Termination of foundation weep screed above dissimilar materials as required-cleaned during punch out.

Additional flashing tape was installed at horizontal reveal. Vertical expansion joint for movement.

Note 16" square scoring was fabricated into sand float texture in middle section of front elevation radius wall.

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CONCLUSION:

As this report illustrates, the exterior stucco wall system is complete on all elevations. Asour lath/bead stage report indicated, the applicator employed PVC foundation weepscreed at the CMU/framing intersections as required by ASTM to allow for water egress.After several discussions with builder, he insisted the stucco contractor omit controljoints installed vertically off openings fro aesthetics. After consulting the SMA manual,the applicator chose to install reinforcing lath butterfly strips off the corners of openings.This, in conjunction with the 1/4" engineered joint around the perimeter of windows anddoors, will help control cracking and preserve aesthetics. PVC accessories and 2.5self-furring diamond lath were installed to all framed walls and arches as required. Thescratch coat is fiber reinforced to add additional strength to the plaster over wood framedwalls. The texture chosen by the owner and designer was a soft adobe. Samples wereprovided on the CMU garage wall and approved by the appropriate parties.

After numerous discussions with the framing contractor , we agreed the front entryarches had to be corrected to rectify framing inconsistencies. The remaining arches weredouble beaded in some places with a regular and wide flange corner bead. Applicatorwas able to achieve a consistent arch through field adjustments, but the main entry had tobe removed and replaced.

There are intersections of dissimilar materials which require an ASTM 920 approvedbuilding sealant (Vulkem or equivalent). to prevent water ingress. It is critical that theseareas be properly sealed in order to protect the structure. They should include: 1- Wood fascia/stucco intersection 2- Back and underside of ALL kickout flashings installed at sloped roof/vertical wall intersections.

3- Deck intersections 4- Penetrations through system (i.e. electrical, plumbing etc.) 5- Around perimeter of ALL openings where 1/4" gap is present. The ¼” gap left around windows

over wood framing should have a 3/8” soft cell backer rod installed into the gap before the engineered sealant joint can be completed. The rod must be 25% larger than the joint size so it stays snug and does not move (hence 3/8”). The rod is critical to prevent three-sided adhesion

and subsequent adhesive/cohesive sealant failure.

6- Around all exterior lighting attachments (and all other attachments through system).

7- Any areas which may allow water ingress into the building envelope.

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Representative photographs illustrating design and construction details have beenincluded in the "photos" section of this report. EHS will perform a follow up inspectionin six (6) months to evaluate the system performance and condition. We will submit areport indicating our findings and any issues which need to be addressed. If you have anyquestions or comments, please feel free to contact our office.

Respectfully,

Project Supervisor