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Browse Ventilation Subtopics

 
 
 

Whole House

  • Q&A: Carpet Filtration Mystery

    Q: We are builders in the Philadelphia area. Over the past few years, we’ve experienced several cases of what we’ve been told is "carpet filtration" — dark ghost lines that appear on the carpet under doors and around the perimeter of rooms. We tested the hvac system and found a sizeable imbalance...

     
  • Products

    Remote-mounted vent fans, flexible gas tubing, OSB with layout lines, MDF molding, electrical box extender, weatherproof adhesive, two-part urethane foam, tall entry doors, foil-faced bubble wrap, heavy-duty lockset, water purification system, laminate flooring, steam bath generator

     
  • Rain Screen Siding Retrofit

    Moisture trapped behind wood siding can cause the finish to fail and the siding itself to cup and buckle. In extreme cases, the sheathing and structure below may deteriorate. Leaving an air space behind the siding is the best way to prevent these problems.

     
  • CO Leaks Causes & Cures

    In today’s tighter houses, carbon monoxide leaks are potentially more deadly than ever. These three case studies show how careful detective work can uncover and eliminate common sources of CO contamination.

     
  • Q&A: Roof Vent Requirements

    Q: By code, how many linear feet of ridge vent is needed per square of roofing?

     
  • Curing Crawlspace Moisture Problems

    In hot, humid climates, more ventilation is not always the answer to excessive crawlspace moisture. This remodeler uses a variety of approaches, depending on the situation.

     
  • Long-Lasting Wood Roofs

    Where wind-driven rain is common, wood shingle roofs require extra detailing, both to keep moisture out of the house and to allow the shingles to dry. A coastal builder describes the materials and methods that work for her.

     
  • Focus on Energy: Roof Venting How Much Is Enough?

    Sizing roof vents

     
  • Venting Details for Cathedral Ceilings

    Unvented roofs in northern climates are prone to ice buildup, but how do you ventilate a valley or hip rafter in a cathedral ceiling? And what do you do at a skylight, where the headers block the vent chutes? A snow-country builder describes the venting methods that have worked for him at these and...

     
  • Focus on Energy: Nine Steps to Ventilation System Design

    Whole-house ventilation strategies

     
 
 
 
 
JLC Field Guide to Decking