How Is Weather-Stripping Done

  1. All weather-stripping will be enduringly installed with fasteners (tacks, staples, brads, etc.) and will make helpful contact between surfaces to stop air leakage. 
  1. Window weather-stripping 
  • “Three-sided:” LOWER sash channels, & sill; or, if the window has spring-loaded channels: top, bottom, and meeting rail.
  • “Four-sided:” LOWER sash channels, meeting rail & sill 
  • “Seven-sided:” UPPER & LOWER sash channels, meeting rail, sill & head jamb
  1. The weather-stripping will make an air-tight seal when the window is closed and latched. A small bead of caulk will be useful as it is essential to avoid air leakage behind the weather-stripping.
  2. The weather-stripping will not delay the smooth operation of the door or window.
  1. Attic hatch or scuttle openings
  • Weather-stripping will be permanently affixed to hatch or framing. Generally “Qlon with carrier” or equivalent is preferred. 
  • A positive closing mechanism will be installed on the hatch if needed.
  •  Existing access to the attic will be maintained. d. In the case of drop-down folding stairs, an air-tight, insulated cap will be built over the opening. 
  • Knee wall access doors will be treated like attic hatch doors whenever possible.

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