1A piece of felted material used for lining or insulating items such as quilts and sleeping bags.

1. 1.1 A piece of fibreglass used to insulate buildings.
   （房屋绝缘用的）玻璃棉
   Example sentencesExamples

   • In new construction, the vapor retarder facing should be installed with the facing placed down toward the ceiling gypsum board, except in hot humid climates where unfaced batts should be used.
   • I saw a claim very recently that New Zealand houses had to have a whole lot of fibreglass batts in them because we were dying in our homes because they were too cold.
   • Before installing the dropped ceiling frame, you can also staple batts of insulation to the original ceiling to create yet another layer of noise-reducing material.
   • When installing a batt of insulation, the vapor barrier - that's the paper or foil face - needs to face toward the heated space.
   • Another proposal would entail removing the subfloor to lay in batts of insulation between the subfloor and the ceiling.
   • Blankets, in the form of batts or rolls, are flexible products made from mineral fibers.
   • Is asbestos sheeting ‘like’ fibreglass batts for insulation?
   • Its thermal resistance is approximately R - 3.7 per inch, which is comparable with sprayed cellulose insulation or high-density fiberglass batts.
   • Instead, it's destined for insulation batts or even road base.
   • In attics, thermal bridging can be reduced by adding sufficient loose-fill insulation thickness, or cross-installed batts, to cover the wood or metal frame as much as possible.
   • Use a straight edge to assure a good straight cut across the fiberglass batt.
   • The vapor barrier might be tar paper, kraft paper attached to fiberglass batts, or a plastic sheet.
   • To meet this recommendation, most homes and additions constructed with 2 x 4 walls require a combination of wall cavity insulation, such as batts, and insulating sheathing, such as rigid foam boards.
   • Allow yourself 3 to 4 person hours per 100 square feet when installing fiberglass batts and a vapor barrier in the attic.
   • Some builders have taken to cramming oversized standard fiberglass batts into wall and ceiling spaces.
   • Fiberglass is available in foil-backed, paper-backed and un-faced batts and blankets.
   • Bulk insulation like pink batts is less desirable, because it prevents the house cooling down at night.
   • For loose-fill insulation or for batts and blankets not having an attached vapor retarder, heavy-weight polyethylene plastic sheets are available in rolls of various widths for use as vapor retarders.
   • Such methods may result in fewer gaps in the building's thermal envelope than can occur with batts.
   • First of all, where the R-value is used to rate the energy efficiency of a single component - a batt of insulation for example - U-values rate the energy efficiency of the combined materials in a building component or section.