Abstract: A hydro-thermo irrigation mat (10) is comprised of a base sheet (11), a water-permeable root-shielding top sheet (12), and a capillary mat (15) of absorbent material therebetween. One or more flat pliable drip tapes (18) are loosely disposed in spaced-apart relationship between the top sheet (12) and the capillary mat (15). Hot water convection tubes (25) are disposed co-axially with the drip tapes (18) but between the base sheet (11) and the capillary mat (15). The drip tapes (18) are connected to a water supply line (22) and the hot water convection tubes (25) are secured to a hot water supply line (28). Water within the mat is heated and distributes heat from the hot water convection tubes (25) substantially throughout the mat.

Abstract: A hydro-thermo irrigation mat (10) is comprised of a base sheet (11), a water-permeable root-shielding top sheet (12), and a capillary mat (15) of absorbent material therebetween. One or more flat pliable drip tapes (18) are loosely disposed in spaced-apart relationship between the top sheet (12) and the capillary mat (15). Hot water convection tubes (25) are disposed co-axially with the drip tapes (18) but between the base sheet (11) and the capillary mat (15). The drip tapes (18) are connected to a water supply line (22) and the hot water convection tubes (25) are secured to a hot water supply line (28). Water within the mat is heated and distributes heat from the hot water convection tubes (25) substantially throughout the mat.

Abstract: An electrically conductive non-woven fabric (10) for heating applications is described and comprises a three-dimensional network (11) of non-woven synthetic fibers (12) which are non-electrically conductive and electrically conductive strands (13) of synthetic fibers or fine metal wires consolidated therewith. The fabric has an intrinsic resistivity in the range of from about 0.05 to 5 m2/kg.

Abstract: An irrigation mat is comprised of a water impermeable base sheet, a water permeable top sheet and a capillary mat disposed between the base sheet and the top sheet. One or more flat pliable optional drip tapes are loosely disposed between the top sheet and the capillary mat and displaceable therebetween to any desirable position. The drip tape is a hollow flat tube constructed of perforated plastics material and extends at least a full length of the irrigation mat. The irrigation mat with the drip tapes is capable of being rolled up upon itself to form a roll. The top sheet is also heat fused to the folded edges of the back sheet.

Abstract: An electrically conductive non-woven fabric (10) for heating applications is described and comprises a three-dimensional network (11) of non-woven synthetic fibers (12) which are non-electrically conductive and electrically conductive strands (13) of synthetic fibers or fine metal wires consolidated therewith. The fabric has an intrinsic resistivity in the range of from about 0.05 to 5 m2/kg.

Abstract: A hydro-thermo irrigation mat (10) is comprised of a base sheet (11), a water-permeable root-shielding top sheet (12), and a capillary mat (15) of absorbent material therebetween. One or more flat pliable drip tapes (18) are loosely disposed in spaced-apart relationship between the top sheet (12) and the capillary mat (15). Hot water convection tubes (25) are disposed co-axially with the drip tapes (18) but between the base sheet (11) and the capillary mat (15). The drip tapes (18) are connected to a water supply line (22) and the hot water convection tubes (25) are secured to a hot water supply line (28). Water within the mat is heated and distributes heat from the hot water convection tubes (25) substantially throughout the mat.

Abstract: An irrigation mat is comprised of a water impermeable base sheet, a water permeable top sheet and a capillary mat disposed between the base sheet and the top sheet. One or more flat pliable optional drip tapes are loosely disposed between the top sheet and the capillary mat and displaceable therebetween to any desirable position. The drip tape is a hollow flat tube constructed of perforated plastics material and extends at least a full length of the irrigation mat. The irrigation mat with the drip tapes is capable of being rolled up upon itself to form a roll. The top sheet is also heat fused to the folded edges of the back sheet.

Abstract: A method and apparatus for producing an irrigation mat comprised of a water impermeable base sheet, a water permeable top sheet and a capillary mat disposed between the base sheet and the top sheet. One or more flat pliable drip tapes are loosely disposed between the top sheet and the capillary mat and displaceable therebetween to any desirable position. The drip tape is a hollow flat tube constructed of perforated plastics material and extends at least a full length of the irrigation mat. The irrigation mat with the drip tapes is capable of being rolled up upon itself to form a roll. The method and apparatus for fabricating same provide for the base sheet to be folded upon opposed elongated side edges thereof to overlap the capillary mat and to be heat fused thereto. The top sheet is also heat fused to the folded edges of the back sheet.

Abstract: A non-woven sheet material for use in building construction and having acoustical thermal and waterproof properties is described. The sheet material comprises a non-woven felt having a polymeric film secured over a surface thereof. The polymeric film has an outer aluminized reflective surface coating adhered thereto. The sheet material has a weight density in the range of from about 30 to 1500 g/m2 and a homogeneous mechanical integrity resistance to fragmentation by the application of traction forces applied thereto during its intended use. The sheet material is capable of being used with the outer aluminum reflective surface facing upwardly or downwardly of an enclosure space to provide acoustical and/or thermal insulation to the space and to provide an impervious barrier.

Abstract: A non-woven synthetic sheet material for use in sound insulation and/or thermal insulation is described. The sheet material is a felt or mat of substantially uniform synthetic fiber thickness and defines opposed flat surfaces. The sheet material is needle-punched from at least one of the opposed flat surfaces thereof to cause the synthetic fibers to intertwine to form a pliable sound and/or thermal insulating sheet. The insulating sheet has a density in the range of from about 100 to 1500 g/m2 and a homogeneous integrity resistant to fragmentation. Preferably a polymeric film is interconnected to a surface of the synthetic fiber sheet by a further needle punch step the polymeric film is preferably a metalized polyethylene film. The material has a multitude of uses in the construction industry. The felt may also be provided in strip form for use in the framing of wooden structures to sound insulate interconnected parts.