Mansard roof with his hands : Design and construction of technology

technology of erection sloping mansard roof

1. Install mauerlat on perimeter of the house.In wooden buildings mauerlat serves as the upper beam or timber.In the stone - brick or block - buildings mauerlat timber is attached to the stud or anchor, anchored in the walls during laying at a distance of 2 meters.Align mauerlat the inner plane of the wall, the rest of the outside wall after laying the decorative masonry.Bruce mauerlat of dry coniferous wood usually has a section 100 or 150 mm.Saw off a bar of desired length, if necessary, rectify the anchor studs and put the timber on top of them.Lightly tapping with a hammer.On the tool bar are dents on the studs on them drill a hole of the required diameter.Spacing bar you can with a tape measure, but the probability of error in this case is higher.On the wall is laid roll waterproofing, you can use an ordinary roofing material in two layers.Mauerlat put on the studs and tighten the nuts.
   

   mauerlat Installation on a brick wall with wooden plugs

2. For beams overlap is usually used pine bar section 100h200 mm.joists or laid on top of mauerlat with the release of the plane walls of 0.3-0.5 meters, or in specially designed for this kladke.V pockets in the first case, the beam is fixed by means of screws and parts.To obtain flat ceilings, beams lay in a strict sequence: first, by the level of extreme, then pulling the cord, align the intermediate on them.Step joists generally from 50 to 100 cm, but is most convenient step 60 cm, allowing the insulation plate stack without trimming.To equalize the height of the beams of their podtesyvayut or use the pad of doski.Esli beams are placed in special pockets in the masonry, their ends are necessarily treated surface waterproofing and are wrapped with roofing material.Align them similarly.
3. In extreme joists mounted rack.The last pillar is made of timber 100x150 mm, height and rack installation line is determined on a pre-prepared drawing.Racks are aligned using a level and plumb and temporarily fix the struts in perpendicular directions - up and down the roof axis.This will install the rack without deviation in any direction.Struts made of any board and nailed to gvozdi.Mezhdu extreme runoff pull the braid and put on it the rest of the rack in increments of step floor beams, that is, on each beam.All racks secured similarly extreme.You should have two rows of racks of the same height, are parallel to each other.
   

   device mansard roof

4. on rack placed and secured in the board runs 50h150 mm, secured runs on 150 mm nails and corners using screws.On runs put crossbar from boards 50x200 mm narrow side down - this will increase their rigidity.Since the operation on the bolt load will not be provided, such a section of the board is sufficient, however, to eliminate their deflection and increase the reliability during mounting, the installation under these crossbars give temporary support of the boards is not thinner than 25 mm.Top bolt fasten one or two boards - temporarily, until the installation of rafters.This board should be placed in the middle of not inhaling - where they will interfere with the further installation and retreated about 30 sm.Posle installing struts, girders and beams you get a rigid structure, which limits the interior of the attic.To increase its strength then it is fixed braces and contractions.
5. sets a lower rafter of the board 50h150 mm.First, perform a template from the board 25h150 mm - it is faster and easier.The board required length is applied to the upper girder, draw the shape of washed down straight on the board and cut out of it.Apply a template to run in the local installation of rafters, and if it matches everywhere, the upper part of the rafters can be performed on a template.The lower part, based on mauerlat next to the joists, each time cut by mestu.Krepyat rafters using parts and screws and nails.
   

   Example fastening rafters

6. to perform upper rafters need to mark the center of the roof.This can be done using a temporary stand, nailed to mauerlat and extreme tightening from the end of the roof so that one edge of the board held on the center line of the roof.On this edge and align the rafters.Next, prepare a template from the board 25h150 mm, applying it to the edge of the board installed at the right level and to the beams, which are based on the lower rafters.Mark up the upper and lower gashes and cut out the pattern.Alternately applying it to both sides of the roof, checking how accurately marked its center.If the rows of racks are made in parallel, the problems with the installation of the upper trusses should not be - they will all be the same size.
7. From template perform the required number of rafters.Mounted on the rafters and girders in the upper part connected via overhead metal plates or shredded board on the screws.In the run to the rafters abut gashes and fixed to the corners.To the rafters were straight, their secured by struts mounted on the lower end of the tightening.So putting all the rafter.Krepjat suspension strut - pieces of boards 25h150 mm.The upper edge of the board is fixed in place rafter connections, lower - to tighten.
8. Put struts at the lower rafters of the board 50h150 mm, stressing their lower oblique cut in the floor beams and fixing at the corners, and the top edge is attached to the side of the rafters, beat one or two of the nail, then drilled through-hole and fixed to the boltor pin.After the installation of the lower back stays clean all temporary struts and strut.
9. sutured gables, leaving the doors and windows.If floor beams are laid in the pockets of the walls, on the lower rafters fastened fillies - the board, continues the line of the rafters and eaves forming.When laying floors on top mauerlat beams and so perform at the required distance, and the mare is not necessary.
10. Krepjat crate under the type of roofing - continuous or rarefied.In the crate put waterproofing and proceed to installation of roofing, such as corrugated board.

Crate for mansard roofs

Bent mansard roof is usually not need insulation - only insulated walls and ceiling of the attic.The air space formed by the rafters, ensure good ventilation of the attic, attic spaces reduces the heat in the summer and provides additional insulation in the winter.Therefore, it is important to leave a sewing gable vent windows in the upper part of the roof above the beams of the attic floor.

Video - instructions for the construction of a mansard roof