A method of manufacturing a mineral fibre thermal insulation product comprises the sequential steps of: Forming mineral fibres from a molten mineral mixture; Spraying a substantially formaldehyde free binder solution on to the mineral fibres, the binder solution comprising: a reducing sugar, an acid precursor derivable from an inorganic salt and a source of nitrogen; Collecting the mineral fibres to which the binder solution has been applied to form a batt of mineral fibres; and Curing the batt comprising the mineral fibres and the binder which is in contact with the mineral fibres by passing the batt through a curing oven so as to provide a batt of mineral fibres held together by a substantially water insoluble cured binder.

Instead of focusing solely on material insulation as a solution for energy efficiency, a wall construction, or other opaque structure of a building, can include a sequence of highly reflective insulation elements that block heat energy exchange across air spaces, combined with material insulation supporting a heat energy highly reflective surface of the highly reflective insulation element. A highly reflective insulation element is formed by enclosing an air space between surfaces, of which one or both of those surfaces is a heat energy highly reflective surface. The heat energy highly reflective surface can be provided by a layer applied to a material. In an opaque building structure, two or more such highly reflective insulation elements, using three or more heat energy highly reflective surfaces, and two or more air spaces, where the material supporting at least one of the heat energy highly reflective surfaces is a material insulator, can improve energy efficiency.

Breakthrough resistant drywall structure, classified at least for resistance class 2 according to DIN EN 1627 from September 2011, having at least two studs arranged to form a drywall substructure, each stud including a base portion and at least one flange portion, the drywall structure further having a plurality of building panels attached to the at least one flange portion, the drywall structure 1 further including a filling material, wherein the filling material comprises fibers.

A demountable structure system is disclosed. The demountable structure system may have a roof system positioned atop one or more structural panel(s) and a floor system positioned beneath one or more structural panels(s). The structural panels may have different shapes, configurations, and features, and may support the roof system in order to form a demountable structure. Alternatively, the roof system is omitted and a wall or other structure can be formed from the structural panels. Each structural panel may have other features, such as finish panels, fabric panels, accessory mounts, recessed lighting, electrical outlets, etc. Some structural panels have sound dampening features, such as to form portable musician's sound booth. Thus, a structure may be formed which is both readily disassembled, yet also sturdy.

An un-reacted substantially formaldehyde free curable binder solution for binding loose matter consists essentially of a solution obtainable by dissolving a reducing sugar, an ammonium salt acid precursor, optionally a carboxylic acid or a precursor thereof and optionally ammonia in water.

An un-reacted substantially formaldehyde free curable binder solution for binding loose matter consists essentially of a solution obtainable by dissolving a reducing sugar, an ammonium salt acid precursor, optionally a carboxylic acid or a precursor thereof and optionally ammonia in water.

A method for forming an insulation product based on a composite of mineral wool and another first material comprising the steps of: (1) forming mineral wool fibers using at least one fiberizing device; (2) introducing the first material to the formed mineral wool fibers at a location proximate the fiberizing device to form a first mixture; (3) drawing the first mixture into a collector to form a structure having a predetermined thickness; and (4) subsequently processing the first mixture to form the insulation product, wherein the first material is disposed throughout the insulation product.

The invention relates to a thermal insulation product based on mineral wool comprising mineral fibers, the product comprising two main faces and longitudinal and transverse edges perpendicular to the main faces, the product being characterized by the following orientation fractions: a longitudinal orientation fraction greater than or equal to 48%, or even 50%, along an angle of more or less 6? with respect to the plane of the main faces, when the mineral fibers are counted only in a longitudinal cross-section, and a mean orientation fraction greater than or equal to 40%, or even 45%, along an angle of more or less 6? with respect to the plane of the main faces, when the mineral fibers are counted both in a transverse cross-section and in a longitudinal cross-section.

The invention allows the insulating power of a thermal insulation product based on mineral wool to be improved without increasing its thickness.

Among other things, there is shown embodiments of an enclosure such as a portable building with features focusing on overall improvement in energy usage. Wall, roof and floor configurations are disclosed that provide significant energy savings. Methods are also disclosed for preparing such features and/or refitting existing portable buildings for such energy savings.

The invention relates to a thermal insulation product based on mineral wool comprising mineral fibers, the product comprising two main faces and longitudinal and transverse edges perpendicular to the main faces, the product being characterized by the following orientation fractions: a longitudinal orientation fraction greater than or equal to 48%, or even 50%, along an angle of more or less 6? with respect to the plane of the main faces, when the mineral fibers are counted only in a longitudinal cross-section, and a mean orientation fraction greater than or equal to 40%, or even 45%, along an angle of more or less 6? with respect to the plane of the main faces, when the mineral fibers are counted both in a transverse cross-section and in a longitudinal cross-section. The invention allows the insulating power of a thermal insulation product based on mineral wool to be improved without increasing its thickness.