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More stories about Testing

  • Builder's Guide to Vinyl Siding

    Though manufacturers are improving the appearance of vinyl siding and making claims of greater durability, builders must choose the right product and install it carefully. Here’s what you need to know.

  • Choosing Collated Nails

    Cheap generic nails seem like a bargain up front, but you may pay the price later in jams and misfires. This article explains how to make an intelligent choice in generic nails, and looks at the many new collated specialty nails on the market.

  • Framing Nailers

    This job-site review of available stick nailers will help you in making your next purchase.

  • Q&A: Why Are 2x12s Rated Lower Than 2x6s?

    Q: Recently I needed structural design values (E, Fb, Fv) for treated southern yellow pine. So I referred to a publication from the Southern Pine Council, which indicated that while E (modulus of elasticity) and Fv (allowable shear stress) remain constant, Fb (bending strength) values grow smaller...

  • A Builder's Guide to Geothermal Heat Pumps

    Installed correctly, ground-source heat pumps can provide comfortable, efficient heating in many climates. Here’s an overview of the available options.

  • Hydronic Baseboard Basics

    Finned-tube baseboard is the most commonly installed hot-water heating system in the country. An expert system designer explains how to size and install an efficient layout using the latest equipment.

  • Products

    Dimmable compact fluorescents, bi-directional floor registers, automatic make-up air, engineered stair stringers

  • 14.4-Volt Cordless Drills

    We put professional-duty 14.4-volt cordless drill/drivers through their paces, including a look at the latest battery technology. This side-by-side comparison will help you make the right choice.

  • Housewrap vs. Felt

    We’ve fielded a lot of questions from builders who use housewrap air barriers, but wonder how these new mate-ials compare with felt paper when it comes to keeping water out of the walls. An expert in wood technology draws on his own research to explain how the properties of housewraps and felt...

  • Mortar Bed Shower Floors

    Curbed tile shower pans have to be watertight. A veteran tile contractor shows how careful detailing of a waterproof membrane and special drain makes for a trouble-free shower floor.