Project & Building Profile

Offline Ready

Property Address

Town / ZIP (Weather)

Client Name

Client Email

Inspection Date

Building Era / Framing

Historic Diagnostic Mode Lockout Locks out destructive 50-Pa depressurization prescriptions on fragile 19th-century horsehair plaster keys and rubble stone foundations.

Field Photo Vault

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Core Diagnostic & Modeling Engines

Deliverables & The Filing Cabinet

Field Methodology & Reference Modules

Thermal IR, Emissivity & False Positives

Moisture WME% & Emergency Shutoffs

Root Cause Forensic Decision Tree

Clearances, Egress & IRC Span Tables

Historic Timber, Lime Mortar & HazMat

O.I.R. Defect Library & Custom Builder

Envelope & ASHRAE 62.2 Diagnostics

Blower Door & Infiltration (BPI-1200)

Measured CFM50

Volume (Cu.Ft.)

Maine Climate / wsf

Stories (S-Factor)

Air Leakage Rate 0.0 ACH

Q_inf (Credit) 0 CFM

Prep: Close all exterior windows, doors, and woodstove/fireplace dampers.

Prep: Open all interior doors within the conditioned thermal boundary.

Safety: Set combustion appliances to Pilot/Off so they cannot fire during depressurization.

Ash Protection: Verify woodstove/hearth ashes are covered or cold.

Baseline: Record baseline house pressure (dP) prior to energizing fan.

ASHRAE 62.2 Mechanical Ventilation

Step 1: Building Occupancy Profile

Cond. Area (sf)

Bedrooms

Step 2: Local Exhaust Deficit Credit Kitchen (<100 CFM) or Bath (<50 CFM) shortage ÷ 4

Base Requirement (Q_tot):0 CFM

Infiltration Credit (Q_inf):- 0 CFM

Required Fan (Q_fan): 0 CFM

Step 3: Field Flow Hood Validation Measured Continuous Fan Flow (CFM)

Awaiting Flow Measurements

Tightness Limit & Retrofit Target

BPI / 62.2

Models the exact CFM50 threshold where air-sealing triggers mandatory ASHRAE 62.2 mechanical ventilation and calculates post-retrofit fan sizing.

62.2 Mech Vent Trigger 0 CFM50 (0.00 ACH50)

Legacy 0.35 ACHn BTL 0 CFM50 Headroom: 0 CFM50

Target Air-Sealing Reduction (%) 25% Reduction

Projected Post-Retrofit Flow: 0 CFM50 (0.00 ACH50)

Leakage Reduction Target: -0 CFM50

Post-Retrofit Required Fan: 0 CFM

Enter CFM50, Volume, and ASHRAE SqFt/Bedrooms above

Zonal Pressure (ZPD @ -50 Pa)

BPI Envelope

Target Zone

Insulation Location

Baseline dP: House WRT Zone (Pa at -50 Pa House)

House-to-Zone: 0% Zone-to-Out: 0%

dP House-to-Zone 0.0 Pa

Derived Zone-to-Out 0.0 Pa

Awaiting Manometer Reading

Enter the House-to-Zone pressure differential at -50 Pa to evaluate air barrier vs. thermal boundary alignment.

1. BPI Add-A-Hole Leakage Estimator

Where was the test hole opened?

Hole Area (Sq. In.)

New H-to-Z dP (Pa)

Est. Zone Path Leakage: -- CFM50

Share of Total Blower Door: --% of CFM50

2. Duct Pressure Pan Check (@ -50 Pa)

Max Register Pan (Pa)

Register Location

BPI Spec: ≤ 1.0 Pa Pass | > 3.0 Pa Major Duct Leak

Vaulted Ceiling Volume

Length (ft)

Width (ft)

Wall Ht (ft)

Peak Ht (ft)

0 Cu. Ft.

Duct Leakage (IECC / MUBEC)

Area Served (sf)

Tested CFM25

Limit (4 CFM/100sf) 0 CFM25

No Data

Attic NFA (1/300 Rule)

Attic Footprint (sf)

Ventilation Standard

Total NFA:0 Sq.In

Split (High/Low):0 Sq.In ea

Envelope O.I.R. Defect Synthesizer

Offline Deterministic + Cloud AI

BPI-2400 Whole-House Energy Modeling & SIR Engine

100% client-side deterministic heat-loss disaggregation, utility bill calibration, Efficiency Maine / Federal HOMES rebates & SIR package builder.

1. Baseline Fuel & Utility True-Up ANSI / BPI-2400

Primary Heating Fuel

Billed Fuel Units / Yr

Fuel Price ($/Unit)

Existing AFUE / Eff (%)

Design ΔT (°F)

Billing Start Date

Billing End Date

Maine Zone 6A Default: 7,450 HDD / 320 CDD

Heating (HDD65) 7450

Cooling (CDD65) 320

2. Heat Loss & Model Calibration Calibrated

Design Heat Loss (Manual J) 0 BTU/hr 0.0 Tons ccASHP

Baseline Heating Cost $0 / yr 0.0 MMBtu Billed

Component Load Disaggregation (MMBtu/yr)

Envelope Conduction (Walls/Roof/Slab) 0.0 MMBtu (0%)

Air Infiltration & Stack Leakage 0.0 MMBtu (0%)

Duct Distribution & Flue Losses 0.0 MMBtu (0%)

BPI-2400 True-Up Ratio (Modeled vs. Utility Bills): Modeled 0 MMBtu vs. Billed 0 MMBtu

100%

3. Retrofit Scope, SIR & Rebate Package Builder

Toggle recommended upgrades to model combined energy savings, Efficiency Maine & Federal HOMES rebates, and BPI Savings-to-Investment Ratio (SIR).

Package SIR: 0.00

ECM Upgrade Measure (Zone 6A)	Est. Savings ($/yr)	Lifespan
ECM-1: Comprehensive Air Sealing Seal attic top plates, chimney chases & rim joists (tied to BTL target slider)	$0/yr	20 yrs
ECM-2: Attic Cellulose Upgrade to R-60 Open-blow dense cellulose + rafter baffles & insulated hatch dam	$0/yr	25 yrs
ECM-3: Rim Joist & Basement Wall Insulation (R-19) Closed-cell foam / rigid thermal barrier + 6-mil Class I ground poly	$0/yr	25 yrs
ECM-4: Cold-Climate Heat Pump (ccASHP HSPF2 10.5) High-efficiency inverter heat pump displacing fossil fuel load	$0/yr	15 yrs
ECM-5: Duct Mastic Sealing & HPWH Upgrade Seal supply/return trunks to ≤4 CFM25/100sf + Heat Pump Water Heater	$0/yr	15 yrs

Modeled Energy Savings (%)

Income Qualification (HOMES / EM)

Est. Federal HOMES + EM Rebates $4,000

Net Client Cost & Payback $0 (0.0 yrs)

Gross Scope Cost $0

Annual Savings $0 / yr

MMBtu Saved / Yr 0.0 MMBtu

CO₂ Reduction 0.0 Tons/yr

Hygrothermal Wall & Ceiling Assemblies (Zone 6A)

Target Code Component (Zone 6A / MUBEC)

INSIDE (Warm / High Vapor Pressure Side)

OUTSIDE (Cold / Weather Side)

Parallel Path Thermal Bridge Analysis

Framing Factor % (Studs/Plates)

Nominal Cavity R-Value: R-0.00

Effective U-Factor (BTU/hr·ft²·°F): U-0.000

Zone 6A Code Status: N/A

True Effective R-Value: R-0.00

Assembly O.I.R. Synthesizer

Combustion Safety & CAZ Diagnostics (BPI-1200)

CAZ Depressurization (BPI-1200 Table 1)

Baseline CAZ (Pa)

Worst-Case CAZ (Pa)

Appliance Venting Category

Net CAZ Shift 0.0 Pa

Awaiting dP

Spillage & Steady-State CO Timers

Wake Lock Idle

Select a test (Screen Wake Lock Auto-Engages)

00:00

CAZ Volume (50 Cu.Ft. / 1k BTU)

NFPA 54 / BPI-1200

Step 1: Open-Combustion Input Ratings (BTU/hr)

Natural Draft (BTU/hr)

Fan-Assisted (BTU/hr)

Step 2: Communicating CAZ Room Dimensions

Length (ft)

Width (ft)

Height (ft)

Total Aggregate Input: 0 BTU/hr

Available CAZ Volume: 0 Cu. Ft.

Std. 50 Cu.Ft. Requirement: 0 Cu. Ft.

Known Infiltration (ACHn) Req: 0 Cu. Ft.

Enter Appliance BTU/hr & CAZ Dimensions

Air-Free CO & Ambient Safety Interlock

As-Measured Flue CO (ppm)

Flue Oxygen (O₂ %)

Air-Free CO (CO_AF): 0 ppm

Continuous Ambient Room CO Monitor (ppm)

BPI-1200 CO Action Thresholds

Furnace / Boiler (Air-Free)	400 ppm
Water Heater (Air-Free)	200 ppm
Gas Oven (As-Measured)	225 ppm

Mechanical Inspection Checklists

Venting: Metal flue connector has ≥ 1/4" per foot upward pitch & 3 screws per joint.

Combustion: Steady blue flame; no flame rollout or scorch marks at jacket.

Fuel Piping: Sediment trap (drip leg) and shutoff valve installed ahead of gas control.

Outdoor Stand: Elevated ≥ 12-18" above grade for Maine snow clearance.

Line Set: Suction vapor line insulation intact with UV protection outdoors.

Condensate: Gravity drain or pump discharges cleanly without air-gap backflow risk.

TPR Valve: Rigid discharge pipe terminates 6" above floor/drain (unthreaded).

Draft Hood: Securely anchored, no melted plastic cold/hot nipple rings.

Combustion & CAZ O.I.R. Synthesizer

Psychrometrics, Dew Point & Surface Condensation

Uses hardware GPS (`enableHighAccuracy: true`) with Midcoast Maine fallback if indoors/offline.

Magnus-Tetens Dew Point & Vapor Pressure

Ambient Temp (°F)

Relative Hum. (%)

Condenses At Surface Temp (Dew Point)

--°F

Any thermal bridge colder than this temperature will condense liquid moisture.

Thermal Imaging Delta-T (ΔT) Verification

Indoor Temp (°F)

Outdoor Temp (°F)

Temperature Delta (ΔT)

40.0°F Optimal ΔT (≥18°F) for Radiometric IR Envelope Scan

Moisture & Psychrometric O.I.R. Synthesizer

Radon Duplicate QA/QC (ANSI/AARST MAH & MS-QA)

Simultaneous Duplicate RPD Calculator

CRM Monitor A (pCi/L)

CRM Monitor B (pCi/L)

Reported Average:

0.00 pCi/L

Relative Percent Difference (RPD):0.0%

Awaiting CRM Data

Closed-Building: Maintained 12 hrs prior to & throughout 48-hr test.

Placement Zone: Lowest livable level suitable for occupancy.

Duplicate Spacing: Collocated CRMs placed 4 to 8 inches apart.

Clearances: 20" to 6' above floor; ≥36" from exterior windows/doors; ≥12" from interior walls.

Radon QA/QC O.I.R. Synthesizer

Radiometric Thermal IR & Emissivity

Crucial Best Practices & False Positives

Delta-T Requirement: Maintain at least a 15°F to 20°F difference between indoor and outdoor temperatures for valid conduction analysis.
Blower Door Assist: Depressurizing the envelope draws cold outdoor air along hidden chases, turning air leaks into crisp feathering streaks on IR.
Thermal Reflection: Glass, glazed tile, and foil polyiso have low emissivity and reflect your own body heat. Adjust angle before diagnosing.
Evaporative Cooling: Always verify cold blue anomalies with a Protimeter RF/pin moisture meter to distinguish wet drywall from missing insulation.

Material Emissivity Reference (ε)

Surface Material	Emissivity (ε)	IR Reliability
Gypsum Drywall / Horsehair Plaster	0.93 – 0.95	High (Accurate)
Unpainted Softwood / Timber Frame	0.90 – 0.94	High (Accurate)
Brick / Rubble Granite / Lime Mortar	0.92 – 0.95	High (Accurate)
Window Glass (Oblique Angle)	0.85 – 0.90	Reflective Caution
Galvanized Sheet Metal / Foil Polyiso	0.05 – 0.23	Low (Use Tape Target)

Moisture WME% & Emergency Shutoffs

Emergency Utility Shutoff Locations

Main Water Shutoff

Main Fuel / Oil / Gas Shutoff

Wood Moisture Content (MC% / WME%) Triage

Measured Wood Moisture (MC%)

<16% Dry | 16–19% Elevated (Fungal Germination) | ≥20% Decay / Rot Threshold

Forensic Root Cause Decision Tree

1. Bath or dryer exhaust fan terminating directly into attic or soffit.
2. Unsealed attic hatch, plumbing wet wall, or balloon-framed exterior walls bypassing warm indoor moisture via stack effect.
3. High indoor winter RH (>45%) from unencapsulated dirt basement/crawlspace.

1. Thermal bypasses at chimney chases, recessed lights, or knee walls warming the upper roof deck.
2. Insulation pinched at eaves without rigid baffles blocking soffit intake.
3. Uninsulated HVAC ductwork running through vented attic.

1. Negative exterior lot grading and missing gutter downspout extensions (<6 ft discharge).
2. Dense Portland cement parging trapping hydrostatic water inside historic granite/fieldstone foundations.
3. Warm summer air condensing on uninsulated cold rim joists.

1. Inadequate ASHRAE 62.2 mechanical ventilation after air-sealing or window replacement.
2. Exposed damp earth in crawlspace lacking sealed 6-mil Class I poly vapor retarder.
3. Unvented gas fireplace/heater discharging water vapor into living space.

IRC Spans, Clearances & Egress

Quick Lumber Span Reference (SPF #2 @ 16" O.C.)

Structural Member

Dimension Size

12' 5"

Combustible Clearances, Egress & NEC

Single-Wall Metal Flue: 18" min clearance to combustibles (B-Vent Double-Wall: 1" min).
Masonry Chimney Clearance: 2" min interior framing clearance (firestopped with sheet metal); 3" min from Non-IC recessed lights.
Emergency Egress Window: Min 5.7 sq.ft. net clear (5.0 sq.ft. grade floor), min 24" height, min 20" width, max 44" sill height.
NEC 110.26 Panel Clearance: 30" wide × 36" deep clear working space × 6.5 ft headroom.

Historic New England Pathology Guide

Rubble Foundations & Timber Joinery

Granite & Fieldstone Foundations (Pre-1900): Require breathable Type O or high-calcium lime mortar. Applying dense Portland cement or closed-cell spray foam directly over damp rubble stone traps capillary moisture and causes freeze-thaw spalling and sill rot.

Timber Frame & Balloon Framing: Inspect mortise-and-tenon trunnel joints for transverse shear cracks. In 1850–1930 balloon framing, wall studs run continuously from sill to rafter plate—verify fireblocking and top-plate air sealing before insulating.

Legacy Electrical & Environmental HazMat

Knob & Tube Wiring (1880s–1940s): Relies on free-air heat dissipation. Under NEC 394.12 and BPI standards, weatherization contractors are strictly prohibited from blowing thermal insulation over active K&T wiring.

Zonolite Vermiculite & Asbestos: Suspect Libby, MT amphibole asbestos in pebble-like silver/gold attic vermiculite, 9×9" vinyl floor tiles, and corrugated hydronic pipe wrap. Do not disturb or depressurize with a blower door.

O.I.R. Defect Narrative Library

Standard & Custom O.I.R. Library

Select Common Building Defect:

Select a defect above to generate an Observation, Implication, Recommendation narrative.

Custom O.I.R. Designer

Defect Short Title

Observation

Implication

Recommendation

Diagnostic Building Science Reference

Birchwood Diagnostic Engine ready. Ask any BPI-1200, BPI-2400, ASHRAE 62.2, Zone 6A vapor drive, or historic timber-frame question (works 100% offline via deterministic knowledge base or live via your Cloudflare Worker).

White-Label, Security & Cloudflare Cost Meter

White-Label Resale Customization

Customize company branding for commercial resale on birchwoodsoftware.com. Saved locally per licensed device.

Company / Franchise Name

Primary Brand Hex Color

Display Theme Mode Toggle Dark Mode (Basements) vs. Daylight Light Mode (Office/Outdoor)

Cloudflare Worker & Per-Folder Cost Meter

Zero plaintext API secrets are stored in client code. Enter a Birchwood Access Code or Subscriber JWT to unlock live Cloudflare AI & LWW sync.

Birchwood Access Passcode or Subscriber JWT

Validated via SHA-256 Gatekeeper Hash or Edge Bearer JWT.

Cloudflare Worker Endpoint

Isolated App Folder Tag

App Folder Telemetry (`/birchpro/`)

Worker Calls 0

Est. API Spend $0.000

Monthly Cap $5.00

BIRCHWOOD DIAGNOSTICS & BPI REPORT

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118 High St, Warren, ME 04864

birchwoodsoftware.com

Property Address

Client

Client Email

Inspection Date

Executive Building Science Synthesis

BPI-1200 / 2400 Diagnostic Telemetry Summary

Infiltration Rate (ACH50):

ASHRAE 62.2 Target Fan:

CAZ Worst-Case Net dP:

CAZ Combustion Air Volume:

Zonal Pressure (ZPD):

Radon QA Average & RPD:

Effective Assembly R-Value:

Design Heat Loss & SIR Package:

Main Water Shutoff:

Main Fuel Shutoff:

Project & Building Profile

Field Photo Vault

Core Diagnostic & Modeling Engines

Deliverables & The Filing Cabinet

Field Methodology & Reference Modules

Envelope & ASHRAE 62.2 Diagnostics

Blower Door & Infiltration (BPI-1200)

ASHRAE 62.2 Mechanical Ventilation

Tightness Limit & Retrofit Target

Zonal Pressure (ZPD @ -50 Pa)

Vaulted Ceiling Volume L×W

Duct Leakage (IECC / MUBEC)

Attic NFA (1/300 Rule)

Envelope O.I.R. Defect Synthesizer

BPI-2400 Whole-House Energy Modeling & SIR Engine

1. Baseline Fuel & Utility True-Up ANSI / BPI-2400

2. Heat Loss & Model Calibration Calibrated

3. Retrofit Scope, SIR & Rebate Package Builder

Hygrothermal Wall & Ceiling Assemblies (Zone 6A)

Parallel Path Thermal Bridge Analysis

Assembly O.I.R. Synthesizer

Combustion Safety & CAZ Diagnostics (BPI-1200)

CAZ Depressurization (BPI-1200 Table 1)

Spillage & Steady-State CO Timers

CAZ Volume (50 Cu.Ft. / 1k BTU)

Confined Space Make-Up Air Sizing (2-Opening Method)

Air-Free CO & Ambient Safety Interlock

BPI-1200 CO Action Thresholds

Mechanical Inspection Checklists

Combustion & CAZ O.I.R. Synthesizer

Psychrometrics, Dew Point & Surface Condensation

Magnus-Tetens Dew Point & Vapor Pressure

Thermal Imaging Delta-T (ΔT) Verification

Moisture & Psychrometric O.I.R. Synthesizer

Radon Duplicate QA/QC (ANSI/AARST MAH & MS-QA)

Simultaneous Duplicate RPD Calculator

Radon QA/QC O.I.R. Synthesizer

Radiometric Thermal IR & Emissivity

Crucial Best Practices & False Positives

Material Emissivity Reference (ε)

Moisture WME% & Emergency Shutoffs

Emergency Utility Shutoff Locations

Wood Moisture Content (MC% / WME%) Triage

Forensic Root Cause Decision Tree

IRC Spans, Clearances & Egress

Quick Lumber Span Reference (SPF #2 @ 16" O.C.)

Combustible Clearances, Egress & NEC

Historic New England Pathology Guide

Rubble Foundations & Timber Joinery

Legacy Electrical & Environmental HazMat

O.I.R. Defect Narrative Library

Standard & Custom O.I.R. Library

Custom O.I.R. Designer

Diagnostic Building Science Reference

White-Label, Security & Cloudflare Cost Meter

White-Label Resale Customization

Cloudflare Worker & Per-Folder Cost Meter

BIRCHWOOD DIAGNOSTICS & BPI REPORT

Executive Building Science Synthesis

BPI-1200 / 2400 Diagnostic Telemetry Summary

Inspector Field Notes & O.I.R. Findings

Inspection Photo Documentation

Inspector / Client Authorization Sign-Off

Area Multiplier

Label & Annotate Photo

Site Scanner Lens

Pre-Inspection & Audit Sign-Off

SIM-Safe LWW Conflict Stepper

Calculator

Field Notes & O.I.R. Clipboard

Confirm Action

Vaulted Ceiling Volume