Heat shrink covering of built structures and method

A method of preparing a film of material for covering surfaces of a built structure;

• the film comprising an assembly of lengths of heat shrinkable material;
• the method including the step of applying heat along an overlap between adjoining lengths of the heat shrinkable material;
• characterized in that the application of heat is guided by a guide rail assembly;
• the guide rail assembly placed over a section of overlap lying on an elongate supporting element positioned on a ground surface.

A method of covering a storm damaged area of a roof of a built structure;

• the method includes the step of preparing an assembly of sheets of a heat shrinkable material on a ground surface;
• the method including sequentially applying the steps of:
• 5) arranging a two adjoining sheets of the heat shrinkable material with an overlap over a supporting surface;
• 6) securing the first portion of the overlap by placing a guide rails assembly over the first portion of the overlap,
• 7) applying heat to the first portion of the overlap by moving a heat source along the guide rail assembly to weld overlap portions of the sheets along the first overlap portion together,
• 8) sequentially moving the guide rail assembly to subsequent portions of the overlap to weld subsequent overlap portions together to a required length of the assembly of sheets of heat shrinkable material.

A method of preparing a sarking layer for a built structure;

• the sarking layer comprising an assembly of sheets of a heat shrinkable material;
• the method including the steps of:
• 6) positioning a portion of an overlap between two adjoining sheets of the heat shrinkable material on a supporting surface,
• 7) positioning a guide rail assembly over a first portion of the overlap to secure the first portion of the overlap between the supporting surface and the guide rail assembly,
• 8) moving a heat source along the guide rail assembly to heat weld the overlap portions of the adjoining sheets of heat shrinkable material one to another,
• 9) moving the guide rail assembly to a next overlapping portion of the adjoining sheets of heat shrinkable material and repeating step 3 until a required length of the assembly of sheets of heat shrinkable material is reached,
• 10) adding a further adjoining sheet of heat shrinkable material to form a further overlap portion and repeating steps 1 to 4 until a required width of the assembly of sheets of heat shrinkable material is reached.

A method of preparing and securing an assembly of sheets of heat shrinkable material over a damaged section of a roof surface;

• the method including the steps of:
• 11) drawing and cutting from a roll of the heat shrinkable material a required number of sheets at a required length to cover the damaged section,
• 12) arranging on a supporting surface adjoining lengths of the heat shrinkable material with a predetermined overlap,
• 13) placing a guide rail assembly over a first portion of the overlap to secure the first portion of the overlap between the supporting surface and the guide rail assembly,
• 14) moving a heat source along the guide rail assembly to weld respective overlap portions of the adjoining sheets one to the other,
• 15) moving the guide rail assembly to any required subsequent portions of the overlap and repeating step 4 to complete welding of the overlap,
• 16) adding as required further lengths of the heat shrinkable material and repeating steps 2 to 5 to complete the assembly of sheets,
• 17) pulling the assembly of sheets with the battens onto the roof surface to cover the damaged section of the roof surface,
• 18) affixing battens to at least two opposing edges of the assembly of sheets,
• 19) affixing the battens at the two opposing edges of the assembly of sheets to suitable elements of the roof,
• 20) applying the heat source to the surface of the assembly of sheets to tighten the heat shrinkable material into conformity with the roof surface.