H&TTI.
HOUSING & TRADES TRAINING INSTITUTE
LEARN. BUILD.
OWN. STEWARD.
Building the people who will rebuild Baltimore.
Housing & Trades Training Institute connects skilled-trades education with paid, hands-on experience rehabilitating real homes—training the next generation to build healthier, more efficient, high-performance housing while creating pathways to careers and attainable homeownership.
501(c)(3) · High-Performance Housing · Skilled Trades · Attainable Homeownership · Baltimore, Maryland
REAL-WORLD PROOF OF CONCEPT
A Real house
A real pathway forward
The principles behind H&TTI are already being put into practice through a real Baltimore renovation—using hands-on construction, thoughtful building science, energy-efficient systems, and high-performance detailing to explore what better housing can look like.
Now we’re building the organization that can turn that experience into opportunity for the next generation.
REAL-WORLD TRADES TRAINING
Transform active renovation projects into hands-on learning environments where the next generation can develop practical skills across the skilled trades.HIGH-PERFORMANCE RETROFIT
Bring existing Baltimore homes into the future through better building envelopes, efficient systems, electrification, and a pathway toward net-zero performance.PATHWAYS TO OWNERSHIP
Connect the skills used to rebuild homes with opportunities to build careers, attain homeownership, and create lasting stability within Baltimore communities.
LEARN // BUILD // OWN // STEWARD
AIR + VAPOR CONTROL // PARTY WALL ASSEMBLY
REAL PROJECT // BALTIMORE, MARYLAND
What you see is SIGA Majrex®, carefully detailed as part of the interior air- and vapor-control strategy. What you don’t see is just as important.
Behind the membrane, the existing masonry party wall has been framed and insulated with R-15 ROCKWOOL mineral wool. Even along shared walls, we’re insulating and air-sealing wherever practical to reduce heat transfer, improve sound control, and maintain greater control over the home’s interior environment.
It’s a simple example of the approach behind H&TTI: understand what every layer is doing, detail it deliberately, and teach the next generation why it matters.
EXISTING MASONRY // R-15 ROCKWOOL // FRAMING // SIGA MAJREX® // INTERIOR FINISH
SYSTEM ARCHITECTURE // REPLICATION ROADMAP
THE FOUR-PILLAR MODEL
A closed-loop framework for historic housing decarbonization, skilled workforce mastery, and community wealth preservation.
SPEC 01 // HTTI-MOD-LRN
01. LEARN
Rigorous, applied trade curriculum training local technicians in building physics and mechanical electrification.
- BPI envelope diagnostic certification
- Cold-climate heat pump installation
- 320-hour paid living stipend cohort
SPEC 02 // HTTI-MOD-BLD
02. BUILD
Hands-on execution of deep retrofits across vacant rowhouses, converting distressed blocks into high-performance homes.
- Continuous R-38 exterior thermal shell
- Sub-1.0 ACH50 whole-envelope airtightness
- Embodied carbon-neutral material matrix
SPEC 03 // HTTI-MOD-OWN
03. OWN
Structured equity pipelines transition retrofitted properties to program builders with long-term deed protections.
- Community land trust deed structures
- Sub-$70 monthly utility operating cost
- Permanent generational equity protection
SPEC 04 // HTTI-MOD-STW
04. STEWARD
Post-occupancy IoT monitoring, preventative envelope maintenance, and shared community tool stewardship networks.
- Sub-minute thermal boundary telemetry
- District tool cooperative maintenance pool
- Annual FLIR envelope certification review
ENGINEERING SPECIFICATIONS : NET-ZERO TRANSFORMATION
HIGH-PERFORMANCE SCIENCE
Attainability and building physics are not in conflict: they are mathematically linked. By engineering rowhouse envelopes to Passive House performance thresholds, we permanently strip operating overhead from working families while creating durable architectural stability.
SPEC 01 // THERMAL BOUNDARY & AIRTIGHTNESS
CONTINUOUS ENVELOPE & THERMAL BREAKING
Historic Baltimore brick walls lose massive thermal energy through mortar joints and uninsulated party walls. Our training curriculum teaches building trainees to construct an unbroken interior air barrier paired with breathable continuous insulation.
- Target infiltration threshold: ≤ 0.60 ACH50 blower door tested
- R-32 continuous wall assemblies eliminate thermal bridges
- Vapor-permeable membrane mitigates masonry freeze-thaw risk
IMPACT METRIC: 64% reduction in seasonal heating and cooling demand compared to standard code-minimum renovations.
SPEC 02 // ELECTRIFICATION & MECHANICAL SYSTEMS
COLD-CLIMATE HEAT PUMPS & ZERO COMBUSTION
Removing combustible gas lines eliminates indoor air toxicity, explosion hazards, and unpredictable utility spikes. Apprentices install inverter-driven variable refrigerant flow systems and heat-recovery ventilation for continuous, filtered fresh air.
- Cold-climate heat pump operation down to -15°F with COP > 2.1
- ERV ventilation with MERV-13 filtration for respiratory health
- Hybrid heat-pump water heating running on 100% all-electric panels
RESILIENCE BENEFIT: Zero volatile combustion on-site, dropping residential asthma triggers while locking in predictable energy costs.
All field specifications meet DOE Zero Energy Ready Home and Passive House (PHIUS) standard benchmarks.
ARCHITECTURAL PHILOSOPHY // MANIFESTO 05
ATTAINABLE SHOULD NEVER MEAN CHEAPLY BUILT.
Families with limited resources benefit most from dramatically reduced energy consumption and predictable operating expenses. True affordability is engineered into the building envelope: airtight continuous insulation, passive solar orientation, and generational durability that outlasts market fluctuations.
SPECIFICATION // NET-ZERO HISTORIC RETROFIT FRAMEWORK // BALTIMORE, MD
GOVERNANCE DOSSIER // CALL FOR DIRECTORS
HELP BUILD THE BOARD
H&TTI is convening an interdisciplinary Board of Directors to establish the governance infrastructure for Baltimore's decarbonized building transition. We invite recognized executives and senior subject-matter experts to lend strategic oversight to our capital, educational, and construction operations.
Project Finance & Tax Credits
Structuring CDFI capital stacks, New Markets Tax Credits (NMTC), and municipal green bonds.
Municipal & Property Law
Managing land-bank dispositions, clear title remediation for legacy rowhouse parcels, and zoning code.
Building Science & Decarbonization
Oversight of high-performance envelope engineering, Passivhaus modeling, and mechanical electrification.
Architectural Practice & Preservation
Balancing urban fabric integrity with mass timber retrofits, interior optimization, and civic permitting.
Workforce & Labor Alignment
Scaling accredited apprenticeship pipelines, trade union reciprocity, and state-certified credentials.
Philanthropic Governance
Directing major foundation relationships, fiduciary compliance, and endowment sustainability strategy.
CAPITAL ALLOCATION SPEC // SECTION 07
INVEST IN THE MISSION
Every philanthropic dollar directly expands physical capacity in our East Baltimore training labs and accelerates the acquisition of distressed rowhouse envelopes for Net-Zero rehabilitation. We do not underwrite speculative development: we fund precision building science curricula, certified passive-house envelope tooling, and permanent wealth generation for emerging local trades professionals.
- Direct capitalization of hands-on building envelope, heat-pump, and air-barrier labs
- Underwriting continuous insulation and advanced ventilation systems for carbon-neutral retrofits
- Permanent deed-restricted community land-trust covenants that secure generational equity
SPEC. 08-CTA // FIDUCIARY RETURN
100% CAPITAL DIRECTED TO LABS & HOMES
H&TTI operates an audited institutional deployment vehicle. Every private investment unlocks regional clean energy grants and municipal matching funds, achieving a 3.8x multiplier on physical neighborhood assets.
501(c)(3) Tax-Exempt Status • Audited Annual Disclosures • Replicable Municipal Architecture
INSTITUTIONAL PARTNERS & BUILDING SCIENCE COLLABORATORS
HOUSING & TRADES TRAINING INSTITUTE
Rooted in Baltimore's historic urban fabric, H&TTI merges high-performance building envelope science with generational craft apprenticeships. We empower Baltimore builders to steward rowhouse longevity, eliminate residential energy burdens, and establish community wealth.
INSTITUTIONAL CODE: BAL-HTTI-21202 | 501(C)(3) DESIGNATION
BALTIMORE HEADQUARTERS
H&TTI Training Center & Fabrication Lab
1400 Greenmount Avenue, Suite 200
Baltimore, MD 21202
Tel: (410) 555-0194
Email: [email protected]
Office Hours: M-F 07:30 - 16:30 EST
NETWORK
FIELD LAB STATUS:
OPERATIONAL (ZONE 4A)
© 2026 H&TTI (Housing & Trades Training Institute). All rights reserved. Maryland Registered 501(c)(3) Public Charity. High-Performance Building Envelope Science & Rowhouse Decarbonization Initiative.