Troubleshooting
Calculating Wood Floor Shrinkage
1 MIN READ
Brief
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Kitchens
Venting an Island Sink
1 MIN READ
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Sidebar
Common EV Worries
3 MIN READ
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Sidebar
Driving Differences
2 MIN READ
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Sidebar
Charging an EV
3 MIN READ
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Backfill
A Letter of Appreciation to the Trades
4 MIN READ
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Business Insight
10 Ways to Rethink Profitability
2 MIN READ
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Materials Science
The War on Rot: Advances in Science to Future-Proof Wood
4 MIN READ
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Projects
Addison Homes Recognized for Innovation
2 MIN READ
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Backfill
Salute to Bob
4 MIN READ
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Scientific American
Which Knot Is Stronger?
1 MIN READ
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Backfill
Treasures Found
3 MIN READ
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Training the Trades
Safety Savvy
1 MIN READ
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Deck Builder
Reviving a Decrepit Deck
1 MIN READ
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How To
The FPSF Principle
2 MIN READ
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Business
What is the Matching Principle?
1 MIN READ
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Products/Tools
The Katz Box 2.0
2 MIN READ
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BUILDER
Building Materials Prices Rise Again in March
1 MIN READ
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APA
Common Framing Errors
1 MIN READ
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Deck Builder
Problem-Solving Deck Framing Details
5 MIN READ
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BUILDER
Building Material Prices Inch Up in November
1 MIN READ
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Business
Building Trades Scholarships Available
1 MIN READ
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NADRA
Call for Entries: NADRA 2023 National+ Deck Competition
1 MIN READ
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BUILDER
Rate of Job Growth Continues to Cool in July
2 MIN READ
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BUILDER
Federal Reserve Raises Interest Rates to 22-Year High
2 MIN READ
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Building Science Corporation
Protection for Foundation Insulation
1 MIN READ
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Remodeling
Remodeling Sector Enters a Moderate Cyclical Downturn
2 MIN READ
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Tile for the 21st Century
NCTA Hosts Free Tile Installation Workshops
1 MIN READ
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Deck Builder
NADRA Presents: Decks Done Right
1 MIN READ
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Business
Are CDM Bids Realistic and Competitive?
3 MIN READ
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Building Science Corporation
Rethinking Closet Ventilation
1 MIN READ
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Foundations
Foundations and Frost
2 MIN READ
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How To
Acquiring Licenses in the Mechanical Trades
3 MIN READ
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Tools
Tool Test: DeWalt 5-in-1 Drill
2 MIN READ
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Deck Builder
Enter NADRA’S 2022 National+ Deck Competition
1 MIN READ
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Products/Tools
Tough Thermal-Imaging Smartphone
2 MIN READ
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Tools
Mini Form Buster Pry Bar
2 MIN READ
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Eye on Housing
Inflation Grows at Slowest Pace Since January
2 MIN READ
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Energy Vanguard
A Frosty Heat Loss Puzzler
1 MIN READ
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BUILDER
The Home Depot Announces 2022 Innovation Award Winners
1 MIN READ
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BUILDER
The Home Depot Launches Jobseeker Platform for Skilled Trades
1 MIN READ
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Projects
Hurricane Ian Destroys Florida ‘Dome Home’ Landmark
1 MIN READ
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Tools
Toolbits: PamFast Cordless Autofeed Screw Gun
2 MIN READ
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Green Building Advisor
Book Review: ‘Pretty Good House’
1 MIN READ
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Tools
Toolbits: Milwaukee I-Beam Hammers
1 MIN READ
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Training the Trades
Free Tile Training
1 MIN READ
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Eye on Housing
Housing Affordability Reaches Lowest Level Since Great Recession
1 MIN READ
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How To
Practical Moisture Science
1 MIN READ
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Products/Tools
Clog-Free Sandpaper
2 MIN READ
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Products/Tools
A Safer Compact Table Saw
1 MIN READ
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NAHB Now
Have Building Material Prices Peaked?
1 MIN READ
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Eye on Housing
Consumer Confidence Reaches 16-Month Low in June
1 MIN READ
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How To
Why Not Just “Blow and Go”?
2 MIN READ
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Eye on Housing
Increasing Building Material and Freight Prices Drive Construction Costs Higher
1 MIN READ
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Eye on Housing
NAHB: Housing Stock in U.S. Continues to Age
1 MIN READ
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Training the Trades
Beguiled by Buildings- Answer Key
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NAHB
Material Prices Keep Rising
1 MIN READ
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Building Science Corporation
Mind the Drip
1 MIN READ
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Awesome Framers
Orange Caps for the Tips of the Spears
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Tools of the Trade
Testing a Laser for Accuracy
3 MIN READ
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Eye on Housing
Building Material Prices Continue to Rise
1 MIN READ
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Eye on Housing
Residential Building Worker Wages Continue to Rise
1 MIN READ
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Deck Builder
Farewell to a Friend of JLC
3 MIN READ
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Events
Hot and Humid Addressed Head-On
3 MIN READ
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Business
Plan Now For JLC LIVE 2022
1 MIN READ
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Energy Vanguard
The Central vs Dedicated Return Vent Debate
1 MIN READ
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Building Science Corporation
How to Design Buildings to Survive Floods
1 MIN READ
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Energy Vanguard
Understanding Dew Point
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Eye on Housing
Lumber Price Volatility at 75-Year High
1 MIN READ
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Green Building Advisor
Monitors for Accurate Data Logging
1 MIN READ
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Energy Vanguard
Box Fan Air Cleaner Update
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Remodeling
Winner of the 2021 Residential Architect Design Awards: Restoration/Preservation Category
1 MIN READ
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Viance
How to Clean Pressure-treated Decking
1 MIN READ
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Energy Vanguard
Bad Advice About Indoor Humidity in Cold Weather
1 MIN READ
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NAHB Now
Affordability Remains at Lowest Level Since 2012
2 MIN READ
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www.intertek.com
Webinar: Plastic Composite Decking Codes and Standards
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Business
Contract Focus: Implied-Warranty Disclaimers
1 MIN READ
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Energy Vanguard
Living With a Heat Pump Water Heater
1 MIN READ
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Lexology
Update on Cannabis and the Workplace
1 MIN READ
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Deck Builder
Webinar: Deck Posts and the Code
1 MIN READ
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Deck Builder
Solutions for Stronger, Safer Decks
1 MIN READ
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Business
New York Housing Demand Surges After Pandemic Slowdown
1 MIN READ
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Building Science Corporation
Pests Can Really Bug You
1 MIN READ
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How To
An App For Right-Sizing Water Pipes
3 MIN READ
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NAHB Now
What the Biden Vaccine Mandate Means for Home Builders
1 MIN READ
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How To
Truss Prep Tip
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Projects
Building a Storm Shelter
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Energy Vanguard
Where Should the Air Barrier Be Located?
1 MIN READ
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Business
Reconnect With JLC Live
1 MIN READ
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How To
Flat Pack Framing
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Energy Vanguard
We Need Higher Ventilation Rates. But How High?
1 MIN READ
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Products/Tools
A Hardware Catalog for Builders
1 MIN READ
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Wood Floor Business
When a Customer Tries to Destroy Your Company
1 MIN READ
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How To
Getting Basements Right
2 MIN READ
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Eye on Housing
OSB Prices Have Increased 500% Since January 2020
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Energy Vanguard
Why the Quality of Attic Insulation Installation Matters
1 MIN READ
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Business
Registration Is Open for JLC Live
1 MIN READ
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JLC
Lumber Prices Begin to Recover
3 MIN READ
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Today
Healthy Home Features That Will Help Homeowner Well-Being
1 MIN READ
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How To
Health-Based Ventilation Rates
2 MIN READ![1. International Residential Code (IRC) ventilation requirements are calculated using the formula: [7.5 cfm x (number of bedrooms + 1)] + (sq. ft. x .01). 2 The ASHRAE 62.2 (2013) ventilation rates are calculated using the formula: [sq. ft. x .03] + [(number of bedrooms + 1) x 7.5 cfm]. This air-flow rate remains in the 2016 and 2019 versions of the 62.2 Standard. 3. Formula for Hayward Score (HS) recommended ventilation rates: 20 cfm x (number of bedrooms + 1) + [(sq. ft. - 1000) x 0.3]. a. Formula assumes 9-ft. ceilings b. Occupancy dictates ventilation rate for the first 1,000 sq. ft., then add 30 cfm per 1,000 sq. ft. (at 9-ft. ceiling height), as smaller volumes are quickly overcome by occupant CO2 c. It matters where you put the air: Bedrooms must get their 20 cfm per occupant, as healthy air at night is priority number one. d. As home square footage increases, two or more systems will be required. Focus on the "casita" (core area) first - the main bedroom and primary occupancy area, which includes the kitchen, baths, and home offices. As occupancy increases (families grow) additional systems can be added. e. Supply air to bedrooms, home office, living space, fitness/wellness room. Exhaust air from kitchen, laundry room, bathrooms and closets. Balance by zone. f. The Hayward Score (HS) recommendations assume stand-alone, balanced, energy-recovery ventilation (ERV), and are based on experience with high-efficiency ERV at 90% energy recovery and 60% moisture recovery with additional dehumidification where climate dictates. g. For best ventilation performance, consider the following: i. Design ventilation system to deliver HS recommended ventilation at 50% of capacity to optimize energy consumption. ii. In winter climates with increased levels of ventilation, supplemental humidification may be necessary to maintain 35-55% RH. iii. Installing a 4-inch MERV-13 filter in the main forced-air HVAC system can assist significantly in reducing dust and particle count indoors. It helps if the HVAC system is a variable-speed system that can operate continuously between heating and cooling cycles. iv. Infiltration air (natural leakage) is typically contaminated and needs to be diluted as well as cleaned. v. In the first two years after construction, chemical off-gassing from building materials and new furnishings is higher and may require running the ventilation system at higher than 50% operating speed. vi. Ideally the envelope of the house should be built to an air tightness of less than 2 ACH @50p. (Code maximum is 3 or 5 ACH, depending on climate.) It doesn't make sense for healthy, conditioned air to compete with infiltration air. Airtightness must be central to this discussion. This example that illustrates the importance of the envelope: A home built to airtightness limit of 3 ach @50Pa. has a natural leak rate (with no wind or significant temperature differential) of .17 ach - more than 50% of the air being introduced and conditioned by the ERV. 4. While four and five bedrooms are unlikely in these smaller houses, air-flow numbers have been provided here because the number of bedrooms often serves as a proxy for house occupancy. It is not uncommon for smaller houses to have 5, 6 or more occupants, and as we have learned human occupancy is a more important driver of ventilation need than house size.](https://www.jlconline.com/wp-content/uploads/sites/4/2021/hs-recommended-corrected.jpg?w=232)
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Business
The Hayward Score: A Rating of Home and Human Health
2 MIN READ
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This Old House
Airless Paint Sprayers
1 MIN READ
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Eye On Housing
High Lumber Costs Add More Than $35K to New-Home Prices
1 MIN READ
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NADRA
How to Plan for a Volatile Market and Uncertain Future
1 MIN READ -
ENR
Does Safety Gear Lead to Riskier Jobsite Behavior?
1 MIN READ
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Deck Builder
Deck Competition Winners Announced
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Energy Vanguard
Why IAQ May Be More Important Than You Think
1 MIN READ
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Awesome Framers
A Lesson in Irregular Roof Geometry
1 MIN READ
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Deck Builder
Webinar: The Most Prescriptive Post
1 MIN READ -
Products/Tools
Frost-Damaged Tankless Hot Water Heaters
1 MIN READ
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Deck Builder
Webinar: Deck Codes & Lateral Loads
1 MIN READ
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Deck Builder
Behind the Scenes of Sizing Beams
1 MIN READ
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NAHB Now
Builders Urge President Biden to Help Ease High Lumber Prices
1 MIN READ -
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Joint Center for Housing Studies of Harvard University
Where Will We See the Strongest Remodeling Growth in 2021?
1 MIN READ
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www.woodfloorbusiness.com
Vintage Discoveries From the Job Site
1 MIN READ
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How To
The Big Blow
1 MIN READ
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Building Science Corporation
Lstiburek on Permanent Wood Foundations
1 MIN READ
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Bloomberg
Why Finding Workers Is Getting Harder for Busy U.S. Home Builders
1 MIN READ
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Energy Vanguard
How Does a Heat Pump Actually Work?
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Building Science Corporation
Understanding Wall Assemblies
1 MIN READ
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Centers for Disease Control and Prevention
Fighting the Coronavirus With Better Home Ventilation
1 MIN READ
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How To
Tips For a Successful Bathroom Remodel
1 MIN READ -
Energy Vanguard
Combustion Safety 101: Three Types of Problems
1 MIN READ
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Training the Trades
2021 JLC LIVE New England Rescheduled
1 MIN READ -
Remodeling
Hands-On with Acrylabs, a Versatile Fluid-Applied Roofing Solution
2 MIN READ
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BUILDER
NKBA Design Trends Survey: Multitasking Kitchens, Larger Baths, Contemporary Styles
2 MIN READ
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How To
Quicker Seat Cut Layout