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Modified vs. Unmodified Thinset
Modified vs. Unmodified Thinset

Q: What is the difference between modified and unmodified thinset, and... Read more

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Common Roofing Errors
Common Roofing Errors

Details that matter on asphalt shingle roofs Read more

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Q&A: Long-Span Floor Joists

Q. Would floor trusses or wood I-joists be stronger over a 26-foot span? Read more

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Q&A: Installing Fiberglass Batts

Q: What happens to the R-value when you stuff R-19 insulation into a 2x4 stud cavity? Read more

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Q&A: Fall Protection Criteria

Q: Your May 2001 article "Fall Protection Update" says that OSHA Standard 29 CFR 1926 requires fall protection for anyone working above 6 feet. Here in Washington state, I understand that the... Read more

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Q&A: Drooling Drip-Edge
Q&A: Drooling Drip-Edge

Q. Most of the houses we build have 12/12 roofs with plumb fascias. Even... Read more

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Will Radiant Heat Melt a Wax Ring?

Q: My company has been contracted to build a new bathroom. Plans include a tile floor installed over a radiant-heated slab. Will the heat generated by the hydronic tubing embedded in the slab cause... Read more

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Q&A: What’s the Dewpoint?
Q&A: What’s the Dewpoint?

Q: When people refer to the dewpoint in a wall assembly, are they... Read more

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Q&A: When Are Collar Ties Needed?
Q&A: When Are Collar Ties Needed?

Q: Collar ties don’t seem necessary in attics where the rafters come all... Read more

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Insulating a Radiant Slab

How much insulation is necessary under a typical basement radiant slab? Read more

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Q&A: Garage Slab Drainage

Q. How should a garage slab be sloped for drainage toward the overhead door? At 1/4 inch per foot on a 24x26-foot foundation, the height difference from front to back would be more than 6 inches.... Read more

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Cutting Metal Roofing
Cutting Metal Roofing

What tool works best? Read more

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Q&A: Using a Single Top Plate
Q&A: Using a Single Top Plate

Q: Our local energy utility recommends framing exterior walls with a... Read more

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Windows in Thick Walls
Windows in Thick Walls

Which is better, an innie or an outie? Read more

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Q&A: Fuel Cost Comparison

Q: A customer asked me how to compare the cost of different heating fuels (natural gas, propane, oil, and electricity). Can you provide a chart with this information? Read more

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