Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
---
title: Soil Treatment for Termite Control
…173 unchanged lines
### The Engineer of Record shall confirm that the project location falls within a termite-infestation probability zone requiring treatment before this standard is invoked.
−### Termite infestation probability maps are published by the USDA Forest Service and reproduced in the IRC and IBC commentary; they classify regions from "none to slight" through "very heavy," and soil treatment is triggered in the moderate-to-heavy and higher zones. {note}
−
```datasheet
label: Termite Infestation Probability Zone
…6 unchanged lines
```
+### Termite infestation probability maps are published by the USDA Forest Service and reproduced in the IRC and IBC commentary; they classify regions from "none to slight" through "very heavy," and soil treatment is triggered in the moderate-to-heavy and higher zones. {note}
+
## Sub-Base Fill Type {toc}
…32 unchanged lines
### Non-repellent active ingredients are preferred for pre-construction barriers because the undetected-transfer mechanism gives more durable protection than a zone termites merely avoid; a default driven only by lowest chemical cost is a false economy. {note}
+### The active ingredient class shall be specified, with a non-repellent termiticide selected over a repellent pyrethroid unless project conditions dictate otherwise.
+
```datasheet
label: Active Ingredient Class
…18 unchanged lines
### The concentrate shall be diluted to the registered pre-construction barrier concentration on the label of the product used.
−### The standard pre-construction dilution for both a fipronil SC and a bifenthrin SC is 0.06% active ingredient; this is the label rate, and the field datasheet records the value actually used rather than substituting for the label. {note}
−
```datasheet
label: Applied Dilution (active ingredient)
…6 unchanged lines
```
+### The standard pre-construction dilution for both a fipronil SC and a bifenthrin SC is 0.06% active ingredient; this is the label rate, and the field datasheet records the value actually used rather than substituting for the label. {note}
+
# Treatment Zones and Application Rates {toc}
…43 unchanged lines
### The vertical barrier shall be established by trench-and-treat: a trench excavated along the foundation to the top of the footing or 6 in (150 mm) deep, whichever is greater, with termiticide applied to the trench soil and to the backfill as it is replaced in lifts.
+```datasheet
+label: Minimum Trench Depth
+type: radio
+options:
+ - To top of footing or 6 in, whichever is greater
+ - To top of footing
+default: To top of footing or 6 in, whichever is greater
+```
+
### The vertical barrier shall be applied at 4 gal per 10 linear ft (5.0 L/m) per foot of depth, consistent with the product label and the federal master specification for chemical termite control.
−### Treating the backfill in lifts rather than only the open trench is what makes the vertical barrier continuous through the full depth of soil against the wall; flooding only the trench bottom leaves an untreated column of backfill above it. {note}
−
```datasheet
label: Vertical Barrier Rate
…6 unchanged lines
```
−```datasheet
−label: Minimum Trench Depth
−type: radio
−options:
− - To top of footing or 6 in, whichever is greater
− - To top of footing
−default: To top of footing or 6 in, whichever is greater
−```
+### Treating the backfill in lifts rather than only the open trench is what makes the vertical barrier continuous through the full depth of soil against the wall; flooding only the trench bottom leaves an untreated column of backfill above it. {note}
## Penetration Treatment {toc}
…26 unchanged lines
### The barrier system shall be a continuous combination of horizontal sub-slab treatment, vertical perimeter trench-and-treat, and penetration treatment unless a more limited configuration is specifically scheduled.
−### The combined horizontal-plus-vertical system is the standard pre-construction configuration; a horizontal barrier alone leaves the foundation perimeter open, and a vertical barrier alone leaves the slab field open. {note}
−
```datasheet
label: Barrier System Configuration
…6 unchanged lines
```
+### The combined horizontal-plus-vertical system is the standard pre-construction configuration; a horizontal barrier alone leaves the foundation perimeter open, and a vertical barrier alone leaves the slab field open. {note}
+
# Installation {toc}
…2 unchanged lines
### Soil treatment shall be applied no more than 12 hours before the vapor retarder is placed and concrete is poured.
−### Termiticide shall be applied before the vapor retarder is installed, never after, so the treated soil is directly beneath the structure and the retarder is not interposed between the chemical and the soil.
−
−### The 12 hour window exists because a treated soil surface is fragile: rain, foot traffic, and backfill all disrupt it, so a barrier laid too far ahead of the pour is no barrier by the time concrete arrives. {note}
−
−### The applicator shall coordinate the treatment window with the concrete contractor's pour schedule.
−
−### Sequencing the termiticide after the vapor retarder is a frequent field coordination failure; the correct sequence is treat soil, then place vapor retarder per [[sync/vapor-retarders]], then place concrete per [[sync/slab-on-grade]]. {note}
−
```datasheet
label: Maximum Interval — Treatment to Concrete Placement
…6 unchanged lines
```
+### Termiticide shall be applied before the vapor retarder is installed, never after, so the treated soil is directly beneath the structure and the retarder is not interposed between the chemical and the soil.
+
+### The 12 hour window exists because a treated soil surface is fragile: rain, foot traffic, and backfill all disrupt it, so a barrier laid too far ahead of the pour is no barrier by the time concrete arrives. {note}
+
+### The applicator shall coordinate the treatment window with the concrete contractor's pour schedule.
+
+### Sequencing the termiticide after the vapor retarder is a frequent field coordination failure; the correct sequence is treat soil, then place vapor retarder per [[sync/vapor-retarders]], then place concrete per [[sync/slab-on-grade]]. {note}
+
## Coordination and Re-Treatment {toc}
### Any treated zone broken by later excavation, utility trenching, or grading shall be re-treated before concrete is placed.
−### MEP subcontractors who trench for late underground utilities after the soil is treated cut directly through the barrier, opening a continuous untreated path; each responsible subcontractor must notify the pest control contractor promptly so re-treatment can be scheduled before the pour. {note}
+### MEP subcontractors who trench for late underground utilities after the soil is treated cut directly through the barrier, opening a continuous untreated path; each responsible subcontractor must notify the pest control contractor promptly so re-treatment can be scheduled before the pour.
### The responsible subcontractor shall notify the pest control contractor whenever a treated zone is disturbed by utility trenching or other excavation.
…30 unchanged lines
### The applicator shall complete an NPMA-99-B (or state-equivalent) New Construction Subterranean Termite Service Record for the treatment.
−### The treatment record shall identify the EPA registration number, product name, applied concentration, total gallons applied, and the treated areas.
−
−### The treatment record shall be submitted within 5 business days of treatment completion.
−
−### The NPMA-99-B is the industry-standard record accepted for FHA, VA, and conventional lending; on FHA-financed projects it is the HUD-NPMA-99-B and must reach the lender, which is why it is treated as a contractual deliverable and not merely a field log. {note}
−
```datasheet
label: Treatment Record Form
…5 unchanged lines
```
+### The treatment record shall identify the EPA registration number, product name, applied concentration, total gallons applied, and the treated areas.
+
+### The treatment record shall be submitted within 5 business days of treatment completion.
+
```datasheet
label: Record Submission Window
…6 unchanged lines
```
+### The NPMA-99-B is the industry-standard record accepted for FHA, VA, and conventional lending; on FHA-financed projects it is the HUD-NPMA-99-B and must reach the lender, which is why it is treated as a contractual deliverable and not merely a field log. {note}
+
# Warranty {toc}
…4 unchanged lines
### Most reputable applicators offer a one-year re-treatment warranty as standard; specifying the warranty term protects the Owner, because a spec silent on warranty leaves no recourse if the barrier fails before the slab is finished. {note}
+### The minimum applicator warranty term shall be specified, protecting the Owner with a defined re-treatment period rather than leaving the barrier's failure recourse silent.
+
```datasheet
label: Minimum Warranty Term
…14 unchanged lines
default: Re-treatment only
```