A mounting frame (100) which can be attached to a ceiling (3) and comprises an assembly of basic profiles (10) comprising a housing (14) for receiving an edge of a covering (1) and a plurality of V-shaped or U-shaped locking clips (50) designed to enter the receiving housing (14) and remain therein in a locked position in which the edge of the covering (1) is clamped between the locking clip (50) and the housing (14). Each locking clip (50) is interposed between an insertion tool and the covering (1) and facilitates the insertion of the covering (1) into the receiving housing (14) without damaging the covering (1). The covering (1), with dimensions greater than those of the frame, can thus be completely removed and reused since the covering has not been damaged in any way, either while the covering (1) is being fitted or while being held in place.

A mounting frame (100) which can be attached to a ceiling (3) and comprises an assembly of basic profiles (10) comprising a housing (14) for receiving an edge of a covering (1) and a plurality of V-shaped or U-shaped locking clips (50) designed to enter the receiving housing (14) and remain therein in a locked position in which the edge of the covering (1) is clamped between the locking clip (50) and the housing (14). Each locking clip (50) is interposed between an insertion tool and the covering (1) and facilitates the insertion of the covering (1) into the receiving housing (14) without damaging the covering (1). The covering (1), with dimensions greater than those of the frame, can thus be completely removed and reused since the covering has not been damaged in any way, either while the covering (1) is being fitted or while being held in place.

An example of conversion of solar energy into other forms of useful energy is taking heat from an area below a roof and using the heat to generate mechanical energy or electrical power. An air duct opening is placed in a hottest area under the roof. An air fan is placed in the air duct to draw the heated air from the area below the roof. A heat exchanger coil is placed inside the air duct. A return air duct is routed back to the area below the roof. The heat exchanger coil is coupled to a turbine through a closed loop line. A heat transfer medium pump, a first valve and a second valve are retained in the closed loop line. The first valve, second valve and pump are used regulate heat transfer medium into and out of the turbine. An electrical generator may be connected to the turbine.

An keder rail and clamping anchor secure keder fabric to a building support beam. In one embodiment, the clamping anchor clamps about the support beam. In a second embodiment, the anchor passes through the support beam and compresses a pair of laterally extending keder rail feet against the support beam. A temporary keder rail anchor has a transitional member, support beam engagement, and keder rail engagement that displace and hold the second embodiment keder rail to an offset position relative to support beam prior to and during installation of keder fabric within the keder rail. A method of tensioning keder fabric uses this holder to secure the keder rail adjacent an edge of the structural beam while keder fabric is inserted. The holder is released and the keder rail is centered on the beam to tension the keder fabric, and the keder rail is secured to the structural beam.

A tensioned panel extended insulation system includes a support structure, a panel support structure and a pair of insulation panels. A telescoping tube extended insulation system includes a support structure and a ceiling sheet material. A rafter clip may be attached to a rafter for attachment of an end of the support structure. A cable arched telescoping tube extended insulation system includes an arched support structure, an adjustable spacer, a cable and the ceiling sheet material. A bar joist extended insulation system includes a support structure, an insulation support structure and an ceiling sheet material. A bar joist extended insulation system may be arched. A system for installing ceiling sheet material in buildings preferably includes either two roller supports or two sheave supports, a middle section, a first end section and a second end section. A rotary strut could also be used to replace an existing strut.

A tensioned panel extended insulation system includes a support structure, a panel support structure and a pair of insulation panels. A telescoping tube extended insulation system includes a support structure and a ceiling sheet material. A rafter clip may be attached to a rafter for attachment of an end of the support structure. A cable arched telescoping tube extended insulation system includes an arched support structure, an adjustable spacer, a cable and the ceiling sheet material. A bar joist extended insulation system includes a support structure, an insulation support structure and an ceiling sheet material. A bar joist extended insulation system may be arched. A system for installing ceiling sheet material in buildings preferably includes either two roller supports or two sheave supports, a middle section, a first end section and a second end section. A rotary strut could also be used to replace an existing strut.