Skip to main content

Home

Follow Home in the Factlen app and get an alert when there is news. Get the app

More in Home

ExplainerPlumbing Physics

Galvanic Corrosion: Why Copper and Galvanized Steel Pipes Destroy Each Other

Code & Standards Bodies 50%Materials Scientists 30%Field Inspectors 20%

4 sources · 42d ago

ExplainerBuilding Science

The Physics of the Stack Effect: How the Neutral Pressure Plane Actually Dictates Drafts, Odors, and Energy Loss in Your Home

Building Scientists 40%Energy Auditors 30%Indoor Air Quality Specialists 30%

4 sources · 42d ago

ExplainerBuilding Science

Framing Fraction and Effective R-Value: How Thermal Bridging Reduces Wall Insulation Performance by Up to 50% in Wood and 80% in Steel Construction

Building Scientists 40%Traditional Contractors 30%Energy Code Regulators 30%

4 sources · 42d ago

HVAC SizingTrade-Off Analysis

Sensible vs. Latent Heat: How ACCA Manual J Actually Dictates the Required Tonnage for Your HVAC System

Building Science Engineers 40%HVAC Contractors 35%Energy Modelers 25%

8 sources · 43d ago

ExplainerRoofing Standards

Weight vs. Fire Resistance: How Class A Roofing Upgrades Dictate Structural Load Limits

Structural Engineers 40%Code Officials 35%Roofing Industry 25%

8 sources · 43d ago

ExplainerMoisture Physics

Convection vs. Diffusion: Why the Air Barrier is More Critical Than the Vapor Barrier for Moisture Control in Most Climates

Building Scientists 45%Material Manufacturers 30%Legacy Code Enforcers 25%

6 sources · 43d ago

Acoustic Design

Reverberation Time and the NRC Scale: How Textiles and Wall Treatments Actually Absorb Sound in Open-Concept Homes

Acoustical Engineers 40%Interior Designers 40%Editorial Synthesis 20%

7 sources · 43d ago

Deep DiveExterior Maintenance

Power Washing vs. Soft Washing: The Pressure and Chemical Trade-Offs for Exterior Siding

Chemical Wash Specialists 50%Material Preservationists 30%Mechanical Cleaning Advocates 20%

7 sources · 43d ago

Housing PolicyRegulatory Shift

EU Finalizes Legal Framework Empowering Cities to Restrict Short-Term Rentals

Municipal Governments 45%Tech and Platform Industry 35%Tourism-Dependent Owners 20%

6 sources · 41d ago

ExplainerPerformance Fabric

Molecular Encapsulation and Solution-Dyeing: How Modern Upholstery Actually Repels Stains Without PFAS

Textile Engineers 33%Environmental Regulators 33%Furniture Retailers 33%

8 sources · 43d ago

ExplainerSmart Home Interoperability

The Application Layer and Thread Network: How the Matter Standard Guarantees Cross-Brand Interoperability

Open-Ecosystem Advocates 40%Smart Home Manufacturers 35%Legacy System Owners 25%

5 sources · 43d ago

Chemical SafetyPolicy Decision

EPA Replaces Animal Testing With 3D Human Tissue for Household Cleaning Products

Chemical Industry & Manufacturers 40%Animal Welfare Organizations 35%Environmental Health Scientists 25%

7 sources · 44d ago

Low-Carbon BuildingMaterial Innovation

London Housing Tower Completed With Structural Exoskeleton Made of 1,000 Tonnes of Volcanic Rock

Low-Carbon Engineers 40%Traditional Contractors 30%Urban Housing Developers 30%

5 sources · 44d ago

ExplainerSpatial Design

The 60-Inch Rule: How Museum Standards Dictate the Visual Balance of Your Living Room

Residential Designers 40%Museum Curators 30%DIY Homeowners 30%

7 sources · 44d ago

ExplainerCompost Chemistry

The 30:1 Carbon-to-Nitrogen Ratio: How Thermophilic Decomposition Triggers Hot Composting

Practical Gardeners 40%Agricultural Researchers 40%Soil Conservationists 20%

8 sources · 44d ago

ExplainerBuilding Science

Why Leaving an Older Home to 'Breathe' Actually Causes Winter Condensation

Building Envelope Engineers 70%Traditional Tradespeople 30%

3 sources · 44d ago

AnalysisRental Upgrades

Peel-and-Stick Wallpaper vs. Painted Stencils: The True Cost and Labor Trade-Offs for Renters

Traditional Paint Proponents 55%Adhesive Vinyl Advocates 45%

3 sources · 44d ago

ExplainerAppliance Science

The 140°F/160°F Threshold: How Dishwasher Temperatures and Detergent Enzymes Achieve Sanitization

Appliance Manufacturers 35%Public Health Organizations 35%Enzyme Biochemists 30%

5 sources · 44d ago

HVAC CodePolicy Decision

National Electrical Code Mandates GFCI Protection for All 240V HVAC Units as Exemption Expires

HVAC Industry Advocates 50%Electrical Safety Regulators 50%

8 sources · 45d ago

ExplainerSelf-Healing Concrete

How Self-Healing Concrete Uses Bacteria and Roman Chemistry to Seal Its Own Cracks

Bioconcrete Developers 40%Chemical Admixture Advocates 35%Lifecycle Cost Analysts 25%

6 sources · 45d ago

ExplainerRoofing Standards

Adhesive Seal and ASTM D7158/UL 2390: How Asphalt Shingle Standards Actually Rate Wind Uplift Resistance

Structural Engineers 40%Roofing Contractors 40%Homeowners & Agencies 20%

7 sources · 45d ago

ExplainerWood Dynamics

Dimensional Stability in Hardwoods: How Tangential, Radial, and Longitudinal Movement Dictate Furniture Survival

Traditional Furniture Makers 40%Mass-Market Manufacturers 30%Wood Scientists and Engineers 30%

4 sources · 45d ago

ExplainerEmergency Prep

How to Use Power Tool Batteries as Emergency Blackout Power

Practical Preparedness Advocates 40%Professional Tradespeople 35%Off-Grid Enthusiasts 25%

4 sources · 45d ago

ExplainerHome Infrastructure

Low-Voltage Power over Ethernet is Replacing Traditional 120V Circuits in Custom Smart Homes

Low-Voltage Integrators 40%Traditional Electricians 30%Energy Efficiency Advocates 30%

6 sources · 45d ago

ExplainerDetergent Chemistry

Molecular Charge, Not Suds, Dictates Laundry Detergent and Fabric Softener Performance

Chemical Formulators 40%Appliance Engineers 35%Environmental Scientists 25%

7 sources · 46d ago

ExplainerTermite Eradication

Fipronil vs. Hexaflumuron: How Delayed Mortality Actually Eradicates Termite Colonies

Structural Pest Professionals 40%Environmental Toxicologists 30%Property Owners 30%

6 sources · 46d ago

ExplainerElectrical Safety

Current Imbalance vs. Waveform Signatures: How GFCI and AFCI Receptacles Actually Prevent Shocks and Fires

Safety Regulators & Code Officials 40%Homebuilders & Contractors 30%Homeowners & DIYers 30%

7 sources · 46d ago

ExplainerHeat Pumps

Coefficient of Performance: Why Heat Pump Water Heaters Break the 100% Efficiency Barrier

Energy Efficiency Advocates 40%HVAC Contractors 35%Building Code Regulators 25%

8 sources · 46d ago

Deep DiveWood Connections

Load Distribution in Wood Connections: How Lag Screws and Through Bolts Actually Transfer Weight

Structural Engineers 50%Residential Builders 30%Code Officials 20%

6 sources · 46d ago

Fire Safety

Breaking the Fire Tetrahedron: How Different Extinguisher Agents Actually Smother Home and Kitchen Blazes

Fire Safety Regulators 40%Materials Researchers 30%Residential Safety Advocates 30%

7 sources · 46d ago

ExplainerMaterial Science

The 28-Day Mark: How Hydration and Water-Cement Ratio Actually Dictate Concrete Compressive Strength

Structural Engineers 40%Concrete Contractors 35%Ready-Mix Suppliers 25%

6 sources · 46d ago

Product RecallConsumer Safety

Clorox Recalls 6.3 Million Mistolin and Lestoil Cleaners Over Bacterial Contamination Risk

Consumer Protection Regulators 40%Retailers and Distributors 30%Health and Wellness Advocates 30%

7 sources · 45d ago

ExplainerYard Drainage

French Drains vs. Catch Basins: The True Cost and Capacity Trade-Offs in Yard Drainage

Landscape Architects 40%Budget-Conscious Homeowners 30%Foundation Specialists 30%

2 sources · 47d ago

ExplainerMaterial Science

Dimensional Stability and the X5.5 Standard: How Core Materials Actually Dictate Furniture Lifespans

Commercial Procurement 40%Engineered Material Advocates 35%Traditional Woodworkers 25%

4 sources · 47d ago

ExplainerSmart Home Protocols

900 MHz vs. 2.4 GHz: How Z-Wave and Thread/Zigbee Frequencies Dictate Range and Interference

Reliability Prioritizers 40%Density and Bandwidth Advocates 40%Protocol Agnostics 20%

6 sources · 47d ago

Indoor Air QualityHealth Explainer

Scented Cleaning Products Generate Traffic-Level Air Pollution Indoors, Study Finds

Indoor Air Quality Researchers 40%Health and Wellness Advocates 35%Home and Lifestyle Experts 25%

6 sources · 47d ago

ExplainerBuilding Science

Polymer Bonds and Burst Pressure: Why PEX-A and PEX-B Plumbing Behave Differently Behind the Drywall

Building Scientists 50%Residential Plumbers 50%

2 sources · 47d ago

ExplainerBuilding Codes

Single-Stair Building Code Reforms Permit Four-Story Point-Access Apartments

Housing Advocates & Architects 60%Fire Safety Officials 20%Small Developers 20%

1 sources · 47d ago

ExplainerHome Organization

The Psychology of Cluttercore: Why Homeowners Are Abandoning Minimalism for Curated Abundance

Maximalist Designers 40%Minimalist Advocates 30%Environmental Psychologists 30%

6 sources · 47d ago

ExplainerTurfgrass Science

C3 vs. C4 Photosynthesis: How Cool-Season and Warm-Season Grasses Actually Dictate Mowing, Watering, and Fertilizing

Plant Physiologists 40%Agricultural Extension Services 40%Factlen Editorial Team 20%

7 sources · 48d ago

Home Office FurnitureSafety Recall

Branch Recalls 16,000 Ergonomic Chairs Over Backrest Detachment Fall Hazard

Consumer Safety Regulators 40%Product Liability Monitors 30%Affected Consumers 30%

6 sources · 44d ago

ExplainerWindow Ratings

U-factor and Solar Heat Gain Coefficient: The Fundamental Trade-Offs Dictating Window Energy Efficiency

Building Scientists and Energy Auditors 35%Window Manufacturers 35%Homeowners and Buyers 30%

3 sources · 48d ago

ExplainerAnchor Physics

Shear and Tensile Load: How Different Wall Anchors Actually Distribute Weight in Drywall and Concrete

Structural Engineers 40%Residential Contractors 40%Material Science Researchers 20%

4 sources · 48d ago

ExplainerMoisture Control

Permeance and Vapor Drive: The Moisture Physics Dictating Wall Assembly Survival

Building Science Consensus 70%Legacy Construction Practices 20%Commercial Envelope Specialists 10%

5 sources · 48d ago

ExplainerLight Reflectance

Light Reflectance Value: How a 0-to-100 Scale Actually Dictates Paint, Lighting, and Energy Efficiency

Lighting Engineers 35%Accessibility Advocates 35%Interior Designers 30%

2 sources · 48d ago

ExplainerWater Chemistry

Ion Exchange and Grains Per Gallon: How Water Softeners Actually Remove Hardness

Water Quality Engineers 40%Municipal Treatment Operators 30%Appliance Manufacturers 30%

5 sources · 48d ago

Per page