Abstract: A fungi resistant asphalt is combined with a base sheet to form a fungi resistant asphalt containing sheet material. Typically, the base sheet is a fibrous base sheet that, by itself, may or may not be fungi resistant. The fungi resistant asphalt is at least partially absorbed by the base sheet to form the fungi resistant asphalt containing sheet material and typically forms one or both major surfaces of the fungi resistant asphalt containing sheet material.

Abstract: Provided is a foam suitable for use as a thermal insulation material, comprising a foam matrix comprising a polyisocyanurate and/or a polyurethane, and a plurality of nanoparticles present in the foam matrix. Also provided is a process for producing a foam suitable for use as a thermal insulation material, comprising mixing at least an A-component with a B-component to form a foam comprising a polyisocyanurate and/or a polyurethane, wherein a plurality of nanoparticles is present in the foam.

Abstract: A device suitable for conducting an on-site measurement of the density and/or R-value of a gas-permeable material is provided. The device comprises a chamber comprising a first port and a second port; a diffuser in fluid communication with the second port of the chamber, wherein the diffuser comprises a diffuser port for conveying a gas flow to or from a gas-permeable material, and wherein the area of the diffuser port is greater than the area of the second port; and a pressure sensor arranged to measure the pressure in the chamber.

Abstract: The facing of a faced building insulation assembly includes a central field portion that is fungi growth resistant. The facing may include a fungi growth-inhibiting agent, be perforated to provide a selected water vapor permeance, and/or may include a heat activated bonding agent. The facing may have lateral tabs that are transparent, sufficiently open to enable wallboard to be directly bonded to framing members overlaid by the tabs, and/or of greater integrity than the field portion of the facing. The field portion of the facing may include a coating to stiffen the facing, inhibit fungi growth, and/or decrease flame spread and smoke formation.

Abstract: Permeance ratings of a variable perm sheet material, facing, and faced building insulation assembly vary with ambient humidity and/or temperature. In the insulation assembly, a facing is bonded to a major surface of an insulation layer. A central field portion of the facing, as bonded to the insulation layer, has variable water vapor transmission properties that vary from a relatively low permeance when exposed to ambient conditions of low humidity to a relatively high permeance when exposed to ambient conditions of high humidity. Preferably, the facing, as part of an insulation assembly, is fungi growth-resistant and may include a bonding layer, such as a heat activated bonding layer, that bonds the facing to an insulation layer. The sheet material may be embossed to affect its water vapor transmission characteristics.