This film shows how using a loft conversion as an example, Fermacell can allow you to take projects that you may previously may have considered too difficult. These days, energy conservation is important and selection of the correct thermal insulation would save both energy and money and heating costs.
The choice of insulation materials is extensive. Selection of the most appropriate one will depend not only on the building regulations but also a wide-range of considerations including the depth of construction available and the nature of the build. A well insulated structure when used in conjunction with Fermacell can also contribute significantly to acoustic privacy. To ensure that the construction complies with building regulations, it is recommended that the 1.2-millimeter polythene film is installed as a vital controller and to ensure air tightness. The sheets overlap approximately 250 millimeters and taped it joining some of the edges.
[Demo]
Large holes or penetrations should be carefully sealed to ensure the continuity of the membrane. Cache should also be taken at junctions between walls and the joining structures. Once this work is complete, the installation of the substructure for the Fermacell boards can be commenced. The sign of roof buttons and studwork depends on the space between rafters. The substructure is installed in the following order up stands, roof slope and ceiling. Spacing of the vertical stands on the up stand when using one-man boards is 500 millimeters. For other formats, please refer to our instruction manual or the website. The spacing of the studs for lining the other surfaces will depend on the board format and thickness. For one-man boards, recommend 335 millimeters.
The buttons it typically fix the rafters and joints with screws. Where rafters are uneven, this maybe corrected using special screws. Alternatively, pneumatically applied nails or staples maybe used to fix the studwork. Here, a timber wedge is used to ensure the buttons are level. Since brickwork and the roof, construction expands and contract to different rates. A space must be left between the roof buttons and the wall to allow for movement. The fix or services can now take place. For optimum energy conservation, a transversal of insulation may be installed between horizontal buttons. The initial work is now complete and bolting out with Fermacell can now begin. Transporting and handling Fermacell is easy. The one-man board format of 1.5 by one meter in 10-millimeter thickness means tight spaces can be negotiated with these.
No special equipment is needed for fixing Fermacell. During installation, the board should be fixed to the soffit to the undersides of the roof slopes and to the upstand walls in that order. This sequence gets benefits for the subsequent jointing process. Fermacell can be fixed to studs with Fermacell cross-sloped screws or with galvanized resonated staples. Boards should be fixed from the center outwards or from one side to the other. Fixings to ceilings and the undersides of roof slopes should be at 150 millimeters centers. Fermacell boards have strong impact resistant edges. This allows fixings to be made up to 10 millimeters from the edge without the edges splitting off. When jointing off the boards are installed, a space of five to seven millimeters should be left between the edges of the boards. A similar gap should be left between the boards and other building finishes. Here, because there is a separating material between the two building elements, crack cannot develop. In this case, Fermacell joint filler may be used to filling the gap. Alternatively, an elastic ceiling compound may be used.
Boards can be cut to size by soaring or by scoring and snapping to size. The Fermacell boards snaps off in a straight line. This roofage strengthens the filler joint. The second roof board is started with the cut-off phase. Joints should be staggered by at least 250 millimeters. By staggering joints, joint crossings are avoided.
Window reveals aligned with strips cut to shape and there is no need for angle reinforcement. A small shape should be left between the boards and the floor. Jointing should only take place after all wet trades are finished and the boards are dry. Filling of joints must be with Fermacell joint filler. Sprinkle it into clean water, allow to sleek and stir to a paste. If the equipment is clean, the filler will remain workable for more than 30 minutes. Fermacell filler should be pressed firmly into the joints with the trowel. Avoid leaving excess filler around the joint. When filled to the back of the joint, the filler ensures a strong bond between boards. Noggings are not necessary behind joints. Before final pointing, any unevenness in the jointing should be smoothed off with an abrasive pad. Off the pointing, the surface is ready for a variety of finishes. For a plaster smooth finish, Fermacell fine surface treatment can be spread over the surface of the board using a squeegee or as white spatula. The excess is removed, leaving a smooth finish that is dry and ready to paint within an hour.
For larger projects, the use of Fermacell joint sticker as a jointing adhesive is recommended. This method of jointing can only be applied to factory cut or sewn edge boards that provide a faster and stronger jointing system. Fermacell joint sticker is applied to the sewn edge of the board and the edge of the next board is then press tightly against the glued edge, and the board fits in. The maximum joint width is one millimeter. Using this system, individual boards become a continuous membrane. The joint is stronger than the boards themselves.
The glue hardens in 24 hours and any excess removed with the scraper. The joint in the joint sticker is finished with fine surface treatment. After fixing the boards, mechanical services can be installed. Fermacell walls can carry heavy loads directly from the boards. Without noggings, a toggle bolt or fisher fitting anywhere in 10-millimeter board will support 40 kilograms. In 12.5-millimeter board, this load can be increased to 50 kilograms.
Transcription by:
Scribe4you Transcription Services