HVAC & Mechanicals

Dew point differs from relative humidity in that it measures exactly how much vapor is present. With relative humidity, it's all relative.

This chart explains how moisture behaves in the air as temperatures rise and fall—rainstorms, flooding, and glaciers in wall cavities are distinct possibilities.

Roof framing, window options, and a mechanical advantage add up to lower bills and a higher quality home

Another use for your Shop-Vac

A simple and affordable balanced ventilation solution for small tight houses

Left-, right-, and straight-cutting snips with single- and compound-leverage each have their place on a jobsite

Making vinyl siding look great by eliminating ugly J-channel

Turns out, ducts buried under insulation actually can work to save energy and eliminate condensation inside the ducts. If you seal and insulate them first

Pennsylvania, New York, and Vancouver think so.