An underlayment membrane between a base surface and an outer coating of a building surface includes a base layer and multiple protrusions extending from the base layer to retain conditioning elements. The protrusions define a plurality of paths, between their side walls for the conditioning elements, which include: first straight portions defined by pairs of protrusions positioned side by side and spaced apart by a distance at most equal to the thickness of the conditioning elements, to hold them by friction; one or more second corrugated portions defined by two or more protrusions spaced apart by a predefined distance greater than the thickness of the conditioning elements and arranged in pairs aligned along lines, which obliquely intersect the path so that a conditioning element is retained by elastic-mechanical contrast with the side walls of the protrusions, the first and second portions of the paths being aligned with each other.

An underlayment membrane between a base surface and an outer coating of a building surface includes a base layer and multiple protrusions extending from the base layer to retain conditioning elements. The protrusions define a plurality of paths, between their side walls for the conditioning elements, which include: first straight portions defined by pairs of protrusions positioned side by side and spaced apart by a distance at most equal to the thickness of the conditioning elements, to hold them by friction; one or more second corrugated portions defined by two or more protrusions spaced apart by a predefined distance greater than the thickness of the conditioning elements and arranged in pairs aligned along lines, which obliquely intersect the path so that a conditioning element is retained by elastic-mechanical contrast with the side walls of the protrusions, the first and second portions of the paths being aligned with each other.

A corner hardware kit for completing a frame corner that is defined by a first frame element and a second frame element includes a corner bracket having a first portion for attachment to the first frame element and a second portion for attachment to the second frame element. The corner bracket has an upstanding foot that protrudes rearwardly therefrom and carries a coupling member at a distal end thereof. The kit also includes an elastic corner insert that has a curved outer surface and has a pair of first coupling elements for mating to a pair of second coupling elements that are associated with the first and second frame elements to complete the corner of the frame.

A modular wall overlay system for installation on a support surface includes a frame; and a cover securely retained on the frame by a tensioning system whereby the cover is free of direct attachment to the frame but rather is retained under tension on the frame by the tensioning system. The frame includes a plurality of frame pieces and a plurality of corner brackets. The frame pieces are directly coupled to respective corner brackets but are free of direct coupling to one another.

A modular wall overlay system for installation on a support surface includes a frame; a cover that is securely, yet detachably, retained on and along a front face of the frame by a tensioning mechanism that is configured to tension the cover; and elastic corner inserts that are disposed in corners of the frame and include curved outer surfaces that are configured to permit the cover to be stretched over the elastic corner inserts creating radiused corners and preventing tearing of the cover in corners thereof when the cover is tensioned by the tensioning mechanism.

A modular wall overlay system for installation on a support surface includes a frame; a cover that is securely, yet detachably, retained on and along a front face of the frame by a tensioning mechanism that is configured to tension the cover; and elastic corner inserts that are disposed in corners of the frame and include curved outer surfaces that are configured to permit the cover to be stretched over the elastic corner inserts creating radiused corners and preventing tearing of the cover in corners thereof when the cover is tensioned by the tensioning mechanism.

A modular wall overlay system for installation on a support surface includes an outer frame having a pair of opposing ends and a pair of opposing sides and a customizable inner frame that is coupled to the outer frame. The inner frame includes a plurality of transverse supports that extend between the opposing sides and a plurality of longitudinal supports that extend between the opposing ends. The longitudinal supports and the transverse supports lie in a common plane defined within the outer frame. The system further includes a cover that is securely retained on the outer frame.

In some embodiments, a system includes a set of moulding sections, at least one electrical conductor affixed at least partially within one or more of the set of moulding sections, and one or more joints between various ones of the set of moulding sections. At least some of the one or more joints are arranged to preserve electrical conductivity, via the at least one electrical conductor, between the various ones of the set of moulding sections.

In some embodiments, a system includes a set of moulding sections, at least one electrical conductor affixed at least partially within one or more of the set of moulding sections, and one or more joints between various ones of the set of moulding sections. At least some of the one or more joints are arranged to preserve electrical conductivity, via the at least one electrical conductor, between the various ones of the set of moulding sections.

A corner hardware kit for completing a frame corner that is defined by a first frame element and a second frame element includes a corner bracket having a first portion for attachment to the first frame element and a second portion for attachment to the second frame element. The corner bracket has an upstanding foot that protrudes rearwardly therefrom and carries a coupling member at a distal end thereof. The kit also includes an elastic corner insert that has a curved outer surface and has a pair of first coupling elements for mating to a pair of second coupling elements that are associated with the first and second frame elements to complete the corner of the frame.