PL150509B1 - Apparatus for placing thermal insulation, in particular acrylamind foam, within unpassable spaces of a flat roof - Google Patents

Description

PATENT DESCRIPTION

PROVISIONAL PATENT

150 509

Provisional patent additional to patent no. ----- Pending: 87 02 05 (P. 264003)

Priority ----- Application announced: 88 02 16

Int. Cl. ⁵ E04B 1/74

Patent description published: 1990 09 28

Inventor: Aleksander Świtoński

Authorized by a temporary patent: Wyższa Szkoła Inżynierska im. Gen. A. Zawadzkiego, Opole (Poland)

A device for laying thermal insulation, especially krillamine foam, from the non-access roof space

The subject of the invention is a device for laying thermal insulation, especially krillamine foam, in the non-access ventilation space of the flat roofs of residential buildings.

The necessity to ensure proper conditions of thermal comfort in rooms and the need to limit heat energy losses, forces us to undertake technological measures aimed at correcting the thermal resistance of the external partitions of existing buildings.

Particularly important and difficult to implement is the project to increase the thermal insulation of flat roofs with ventilated space, in which the lack of access to the attic space makes it difficult to arrange an additional thermal insulation layer using traditional construction methods. Due to the lack of appropriate devices, in practice, the method of correcting the thermal resistance of flat roofs is not used, which consists in introducing such materials as: granulated waste of mineral wool, impregnated sawdust or polystyrene granules into the space between the supporting structure and the roofing through the ventilation openings. With the current state of technology, the thermal insulation of flat roofs with non-access ventilated space is supplemented only after removing the roof panels. It is connected with a large amount of labor and costs of thermal insulation works. The lack of appropriate devices ensuring the maintenance of the appropriate layer thickness also makes it impossible to perform thermal insulation of roofs of existing buildings as a result of laying the krillamine foam through the probe inserted through the ventilation holes.

The essence of the device according to the invention is that the probe made of a cantilever element terminated with a material ejector connected to the bracket, with an axial hinge, is held by the structure placed in the ventilation opening in the roof of the building, with the structure being made of an insert, preferably made of a symmetrical axial element, inserted into the opening ventilation, inside which a rotating sleeve is mounted, equipped with a system of rollers holding the probe in the roof space.

150 509

This makes it possible to lay insulation materials, especially krillamine foam, in the non-access space of ventilated roofs without the need to disassemble the roof structure.

The subject of the invention is given by way of example in the drawing. The figure shows a cross-section through a device intended for laying thermal insulation made of krillamine foam in the non-access roof space of the building, placed in the ventilation opening.

The device consists of a probe 1 made of a steel element 6 m long with a U-shaped cross-section. The end of the probe 1 located in the flat roof has an articulated foam ejector 4 connected with a flexible conduit 5 to the foam generator 8. Probe 1 is held by a structure placed in the ventilation opening in the roof 7 of the building. The structure, keeping the probe 1 in the appropriate position, enables its shifting in the direction of the longitudinal axis to the required depth of the roof. The foam ejector 4, attached to the probe 1 by means of a hinge 6 enabling its change of position in a predetermined plane, adopts a position most preferably constituting an extension of the probe 1 when entering the roof 7 into the ventilation opening and most preferably perpendicular to the surface of the ceiling 9 while the displacement plane 4 is in vertical position.

The process of laying thermal insulation is as follows. The probe 1 with the foam ejector 4 set in the transport position is introduced through the ventilation opening 7 into the roof space. At the time of insertion, the probe 1 should most preferably be in its extreme position outside the building. Placing the probe in the roof space consists in inserting the supporting structure into the vent and fixing it with a special clamp 10. The structure of the holding device is made in such a way that it ensures free insertion of the probe 1 into the flat roof to the required depth and enables its rotation in relation to the longitudinal axis . After inserting the probe 1 into the space of the roof and fixing the structure to the wall of the attic 3, the material ejector 4 is inclined at an appropriate angle in relation to the probe 1. The probe 1 is turned to the extreme position that determines the extent of the foam strand to be laid on the flat roof. The foam generated in the foam generating unit 8 is transported through the conduit 5 and thrown to the edge of the strip to be insulated. While ejecting the foam from the conduit, due to the rotation of the probe 1 around the longitudinal axis, the ejector 4 lays the foam on the ceiling 9 with a strip transverse to the direction of travel of the probe 1. After rotating to the extreme opposite position, the probe 1 is moved by a section corresponding to the width of the laid thermal insulation strip. If the probe 1 is rotated in the opposite direction, the foam transported along the conduit 5 is laid through the ejector 4 on the ceiling 9 in the next line.

Adequate synchronization of the rotational speed of the probe 1 with the efficiency of the foam generating unit 8 allows to ensure the appropriate thickness of the thermal insulation layer. The cycles of laying the foam are repeated until the foam is laid along the entire depth of the roof in a band adapted to the spacing of the ventilation openings. Then the probe is moved to the next ventilation opening in the roof and the course of the operation is repeated.

Providing the probe 1 movement and its stabilization with the required deflection of the foam ejector 4 from the vertical plane makes it possible to lay thermal insulation on vertical surfaces of walls parallel to the probe axis 1.

Claims (1)

Patent claim A device for laying thermal insulation, especially krillamine foam in a non-access roof space, characterized in that the probe (1) is made of a cantilever element, ended with a material ejector (4), connected to the bracket (1) with an axial joint (6), held by the structure located in the ventilation opening in the roof of the building (7), but the structure is made of an insert (2), preferably made of an axially symmetrical element, inserted into the ventilation opening (7), inside which a rotary sleeve (11) equipped with a roller system (12) is mounted ) holding the probe in the flat roof.