# Division 32: Exterior Improvements submittal deviations

> Source: https://deviationcheck.com/divisions/32-exterior-improvements/
> Deviation Check - AI submittal review for General Contractors (Aliso LLC).

Division 32 covers exterior site improvements: paving, landscaping, irrigation, site furnishings, fencing, and athletic surfaces. Common CSI sections submitted for review:

## Common Division 32 CSI sections

- 32 01 00 - Operation and Maintenance of Exterior Improvements
- 32 11 00 - Base Courses (aggregate base, crushed stone)
- 32 12 00 - Flexible Paving (hot mix asphalt, HMA)
- 32 13 00 - Rigid Paving (portland cement concrete)
- 32 14 00 - Unit Paving (brick, concrete pavers, flagstone)
- 32 16 00 - Curbs and Gutters
- 32 17 00 - Pavement Markings
- 32 18 00 - Athletic and Recreational Surfacing (rubberized track, synthetic turf)
- 32 31 00 - Fences and Gates (chain link, ornamental metal, wood)
- 32 32 00 - Retaining Walls (segmental block, gabion)
- 32 84 00 - Planting Irrigation
- 32 90 00 - Planting
- 32 91 00 - Soil Preparation
- 32 93 00 - Plants
- 32 94 00 - Planting Accessories

## The six deviation categories in Division 32 Exterior Improvements

### Manufacturer or Product Substitution (default grade: Blocker)

The submittal proposes a different manufacturer or product than the spec names, without an approved or-equal or substitution request.

Site improvement specs frequently name brand products or approved manufacturers. Look for:
- Asphalt mix design source plant substitution (mix design is plant-specific; different plant requires new mix design approval)
- Concrete mix design batch plant substitution (requires re-submitted batch plant certification)
- Irrigation controller manufacturer swaps (Rain Bird, Hunter, Toro, Weathermatic) where integration with existing controls is specified
- Irrigation head brand changes (Rain Bird vs Hunter vs Toro) affecting precipitation rate matching and part-circle patterns
- Site furnishing manufacturer substitutions (benches, bike racks, trash receptacles, bollards) where specified product sets aesthetic and dimensional standard
- Fencing system manufacturer swaps (Ameristar, Merchants Metals, Master Halco) especially for ornamental iron or security fencing
- Plant nursery source substitution where local provenance or specific grower is specified
- Synthetic turf manufacturer swaps (FieldTurf, Shaw, Hellas, AstroTurf) where specified product has proprietary shock pad system
- Rubberized track surface manufacturer substitution (Beynon, Mondo, Rekortan)

Full guide: https://deviationcheck.com/divisions/32-exterior-improvements/manufacturer-substitution/

### Performance Specification Gap (default grade: Blocker)

A measurable performance property in the submittal (rating, capacity, tolerance, efficiency) does not meet what the spec requires.

Key performance parameters in exterior improvement submittals:
- **HMA binder grade** (PG XX-XX) - must match climate zone and traffic loading; submitting PG 58-28 where PG 64-22 is specified is a blocker in cold climates
- **Asphalt compaction target** - % of maximum theoretical density (Marshall method: 96%, Superpave: 92-96% of Gmm); look for design vs field target
- **Asphalt mix design parameters** - % passing each sieve, voids in mineral aggregate (VMA), air voids (target 3-5% in field), voids filled with asphalt (VFA)
- **Concrete paving compressive strength** (f'c) - typically 4000 psi at 28 days for parking lots, 4500 psi for driveways, 5000 psi for heavy truck; verify submitted mix meets spec
- **Concrete air content** - 5-7% for freeze-thaw exposure (ACI 301 Table 4.4.1); lower air content in freeze climates is a blocker
- **Concrete fiber type and dosage** - polypropylene, steel, or synthetic macro fiber at specified lb/cy; fiber type affects crack control differently
- **Aggregate base gradation** and compaction (% Proctor) - must match geotechnical recommendation
- **Irrigation precipitation rate** (in/hr) per zone - must not exceed soil infiltration rate; mixed head types in same zone cause uneven coverage
- **Irrigation uniformity coefficient (DU, distribution uniformity)** - minimum 0.70 for turf, 0.75 for potable water districts
- **Plant caliper size** - must meet ANSI Z60.1 nursery stock grades; caliper measured 6" above grade for trees up to 4" caliper
- **Plant height and spread** at time of delivery per ANSI Z60.1 grade requirements
- **B&B vs container** specification - not interchangeable; B&B trees have established root balls, container stock has different acclimation requirements
- **Athletic surface Gmax** impact attenuation - maximum 200g per ASTM F355; exceeding this is a safety blocker
- **Synthetic turf pile height and fiber weight** (oz/sq yd) - affects playability, durability, and heat retention

Full guide: https://deviationcheck.com/divisions/32-exterior-improvements/performance-specification-gap/

### Missing Certification or Compliance Documentation (default grade: Fix and Resubmit)

A required listing, test report, certification, or compliance document is absent from the submittal package.

Required certifications in exterior improvement submittals:
- **ASTM D3515 compliance** for hot mix asphalt (or state DOT equivalent mix design report from certified lab)
- **ACI 330** (parking lot concrete) or **ACI 301** (structural concrete) compliance documentation
- **ANSI Z60.1** nursery stock grade certification from grower or nursery
- **Local stormwater authority approval** for grading plan and drainage design where impervious area thresholds are crossed
- **Athletic surface third-party test report** - Gmax and HIC values from independent test lab per ASTM F355; manufacturer self-reported values do not satisfy this requirement
- **Synthetic turf FIFA Quality Pro or ASTM F1551/F1752** certifications for regulated athletic use
- **CRSI** (Concrete Reinforcing Steel Institute) mill certifications for any reinforcing steel in concrete paving
- **Irrigation water budget and efficiency audit report** per local water district requirements (increasingly required)
- **Recycled content documentation** for rubberized surfaces where specified (percentage of post-consumer tire rubber)
- **NSF/ANSI 61 certification** for irrigation system components that contact potable water where irrigation connects to domestic supply

Full guide: https://deviationcheck.com/divisions/32-exterior-improvements/missing-certification/

### Aesthetic Deviation (default grade: Fix and Resubmit)

A visible attribute (color, finish, texture, profile) differs from the spec or the architect-approved sample.

Common in exterior improvements - highly visible to owners and public:
- **Pavement marking color** vs MUTCD (Manual on Uniform Traffic Control Devices) - blue for accessible spaces, yellow for traffic lanes, white for stalls; wrong color is a functional/regulatory deviation
- **Plant species substitution** - even "similar" species may violate landscape plan intent, HOA restrictions, or native plant requirements; owner approval required
- **Site furnishing color and finish** - powder coat color, texture, and RAL number mismatches from specified product
- **Fencing color** and finish (black vs bronze vs galvanized vs custom color)
- **Concrete paving finish** - broom vs exposed aggregate vs stamped vs salt finish; color for integrally colored concrete
- **Unit paver pattern, color, and size** vs specified product
- **Synthetic turf pile color** (field green vs lime green), logo placement

Full guide: https://deviationcheck.com/divisions/32-exterior-improvements/aesthetic-deviation/

### Detail or Installation Mismatch (default grade: Fix and Resubmit)

The submitted detail, dimension, anchorage, or installation method differs from what the spec or drawings require.

- **Pavement section thickness** - base + surface course total must match geotechnical pavement design recommendation; shortchanging base is a common substitution
- **Asphalt surface course thickness** differs from spec (e.g., 2" spec, submittal shows 1.5")
- **Concrete joint spacing** differs from spec maximum (typically 10-15 ft for 4" slab; exceeding joint spacing increases cracking risk)
- **Curb reveal height** differs from spec or ADA requirements at transitions
- **Irrigation head spacing** does not match precipitation rate calculations (head-to-head coverage required for specified DU)
- **Plant spacing** differs from landscape plan requirements (affects coverage at maturity)
- **Tree pit size** below spec minimum (typically 3x root ball diameter for B&B)
- **Fencing post embedment depth** differs from spec minimum (typically 1/3 of total post height plus 6")
- **Bike rack or bollard anchor bolt pattern** differs from manufacturer's base plate template
- **Rubberized track thickness** per lane differs from spec (affects Gmax rating)

Full guide: https://deviationcheck.com/divisions/32-exterior-improvements/detail-installation-mismatch/

### Submittal Package Incompleteness (default grade: Fix and Resubmit)

A required submittal element (cut sheet, schedule, calculation, sample) is missing, leaving the package unreviewable as submitted.

Commonly required items in Div 32 specs:
- Asphalt mix design report (Marshall or Superpave) from certified laboratory with mix design number and plant certification
- Concrete mix design with batch plant certification, admixture data sheets, and aggregate gradation
- Plant list with confirmed availability: species, caliper, height, spread, root ball size, and nursery source
- Irrigation design calculations: precipitation rate per zone, DU calculation, water budget, pipe sizing
- Site furnishing cut sheets with dimensions, weight, anchor details, and finish specifications
- Pavement marking product data sheet with reflectivity rating and cure time
- Athletic surface system drawing showing all layers (base, shock pad, pile carpet) with thicknesses
- Fencing post and panel structural calculations for wind load where required
- Aggregate base gradation report from certified lab
- Synthetic turf field test report (Gmax, HIC, traction, rotational resistance)
- Irrigation controller programming manual and water budget worksheet

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Full guide: https://deviationcheck.com/divisions/32-exterior-improvements/submittal-package-incompleteness/

## How Division 32 deviations are graded

- **Asphalt binder grade (PG) lower than climate zone and traffic requirement:** Always BLOCKER (premature rutting or thermal cracking - pavement will fail prematurely)
- **Concrete paving f'c below spec:** BLOCKER (structural adequacy of parking/drive surface)
- **Concrete air content below ACI 301 minimum for freeze-thaw exposure:** BLOCKER in cold climates (scaling and spalling failure)
- **Athletic surface Gmax above 200g per ASTM F355:** Always BLOCKER (user safety - head impact injury threshold)
- **Missing stormwater authority approval where impervious area threshold is crossed:** BLOCKER (regulatory - cannot pave without permit)
- **Plant caliper below specified ANSI Z60.1 size:** FIX_AND_RESUBMIT (contractual requirement; owner paid for specified size)
- **Unapproved plant species substitution:** FIX_AND_RESUBMIT (owner decision required; not a contractor unilateral call)
- **Asphalt air voids outside 3-5% target range in mix design:** FIX_AND_RESUBMIT (durability impact but not immediate structural failure)
- **Irrigation DU below 0.70 for turf zones:** FIX_AND_RESUBMIT (water waste and uneven coverage; increasingly regulated by water districts)
- **Missing synthetic turf third-party test report:** FIX_AND_RESUBMIT (manufacturer data alone does not satisfy spec)
- **Pavement section thickness below geotech recommendation:** BLOCKER (premature structural failure)
- **Fencing post embedment depth below spec:** FIX_AND_RESUBMIT unless in high-wind/security zone, then BLOCKER
- **Missing asphalt mix design from certified lab:** FIX_AND_RESUBMIT (cannot verify conformance without it)