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Repair and colouring of roofs
From asbestotsementnyh sheets

Such roofs arrange from wavy or flat sheets. (Flat sheets often name simply tiles.) repair and colouring of this kind of roofs should be carried out from running bridges, i.e. Boards with the laths filled on them. Bridges on one end have krjuchja or higher lath with which they cling on konkovyj a crest. Not bad on the fad specially to arrange skoby for which it is the most easier to hook on bridges.

The Rigid bridge can crush flat asbestotsementnyj sheet - a tile, therefore under it fill softening linings from felt, soft rubber, foam rubber. During repair the bridge stack so that it was to the left of the damaged tile, distance 20-25 see

Replace tiles so: unbend cores of four protivovetrovyh the buttons located round the damaged tile, and delete it. If the tile is kept by the fixing nails which heads are under vysheulozhennymi the tiles, a replaced tile split more often and delete pieces. On the taken pieces measure distance from edges of a tile to fixing apertures and a new tile do precisely same.

The Prepared tile put into place for what it is necessary to raise lateral and top tiles. Work in this case is more convenient for carrying out together, from two bridges. Having laid a tile, it fix below protivovetrovoj the button and one screw. That during screwing up of a screw the tile has not burst, under it enclose a piece of plywood or a cardboard of the necessary thickness. Under a screw head on miniate putty two washers put on: at first from rubber or prorezinennoj fabrics, then metal. After zavertyvanija a screw of edge of washers coat with putty.

At replacement of a great number of tiles them assort, beginning from the fad to eaves, pull out from a timbering all nails if it is required - correct a flooring, will sweep off it and stack a covering.

At repair of collars of chimneys and skylights replaced tiles or their parts leaving on edges of aprons, it is supposed to stack with overlapping on 6-7 Krepjat their screws in the same way as it is described above see.

Wavy asbestotsementnye sheets with the broken away edges, with cracks and other serious defects replace new. From two parties of replaced sheet stack bridges and reliably fix. Across bridges stack a board from which perform work. For removal of the damaged sheet delete fixing materials: nails or screws. For easing of pressing an edge of removed sheet nails or screws of the next sheet lift on 1-2 see When fastening is executed on the first wave nails or screws temporarily take. In all adjacent sheets of an overlying number also weaken fastening and if it is necessary a fixing material take.

At work with gvozdoderom under its pad it is necessary to enclose a board not to split that sheet against which he leans. The new sheet is recommended to be stacked together: one lifts weakened sideways and from above sheets, and another stacks sheet into place. Having established precisely sheet, it krepjat the same as also the others. All taken either weakened screws or nails put into place. Washers grease with miniate putty and it proshpatlevyvajut round them.

At replacement of the damaged fads fixing details delete, put a fad element into place and fix nails or screws.

In tiles and wavy sheets of an aperture do by drilling, instead of punched holes or are formed by a punch or a large nail from which sheets are pricked cracks.

Is inadmissible to leave in places nahlestki thinness sheets through which on an attic water will get. All thinnesses it is necessary reliably zagermetizirovat, using mastics or putties.

Cold mastic for this purpose prepare from refractory bitumen (47% on weight), softened at temperature not more low 90°С, soljarovogo oils (28%) to exhaust-pushonki (12%) and cleared shlakovaty (13%). Prepare mastic strictly observing fire-prevention actions and safety precautions. Capacity on 3/4 its volumes fill melkorublenym with bitumen and plavjat it on slow fire at temperature 200... 220°С. In the course of fusion on a bitumen surface there are various impurity and foam which delete a tin with the apertures, strengthened on the long handle. Bitumen heat up until it will not cease to foam, i.e. Completely it will not be dehydrated. Then fire extinguish or remove capacity from fire and carry from it not less than on 5 m. There and then in bitumen at intensive hashing pour in in the small portions solvent. After hashing of bitumen with solvent also in the small portions at intensive hashing enter napolnitel. Napolnitel should be dry and besides warmed up to 110°С. Mastic apply in a hot condition, put it shpatelem, kelmoj, a plaster shovel or otrezovkoj and carefully smooth, that on it water was not late.

Putty prepare from 1 ch. Cement, 1-2 ch. Small sand. That, drying up, it has not cracked, in it add 0,5 ch. shlakovaty, woollen ochesov or small rublenoj glass wool. The put putty well smooth down.

It is possible to prepare usual putty from drying oil and a chalk, but these materials it is required very much. The places which have been missed the mark with cement mastic and putty, necessarily paint over an oil paint.

If small cracks can be closed up putty, bitumen mastic on larger paste fabric patches . Places under patches clear of a dust, a dirt, a rust, ground drying oil, dry, paste patches on gustotertoj to an oil paint, carefully them smooth, dry and then paint. The patch should block on 10 sm from different directions the area of a repaired place, and the surface, on 3-5 sm exceeding with each party the size of a patch is subject to colouring.

The Punched places sometimes cover with a structure cement mortal 1:1, well it smooth down, dry, ground and paint.

Roofs with the considerable removed area demand major repairs. Depending on its condition sometimes it is possible to manage only colouring, preliminary having cleared a roof of a dust, a soot, lichens etc. (How to get rid of lichens, it is told in item 1. 2 "Л§юф for ъЁютыхщ".)

To Paint a roof it is possible in one colour or in two-three, dividing it thus into strips, squares, rhombuses. Sometimes single sheets paint in different colours, for example, in chessboard order.

Instead of an oil paint it is possible to use bitumen mastic, having given to a roof black colour. Mastic put only on ogruntovannuju a surface. A first coat prepare from refractory oil bitumen (40%) and soljarovogo oil or kerosene (60%). It is possible to prepare it also from bitumen (30%), gasoline or benzene (70%). Mastics are inflammable. At work with them it is forbidden to smoke. In due course solvent evaporates also mastic becomes less dangerous. Prepare a first coat the same as also cold mastic. Apply a first coat in a hot kind. It is inflammable.

Preparation of hot bitumen mastic of 10 kg needs 8,5 kg of refractory oil bitumen of mark БН-70/30 and 1,5-1,7 kg napolnitelja. Fibrous mastics are good, and it is even better combined, consisting of a mix fibrous and pylevidnyh napolnitelej in the ratio from 1:1,5 to 1:3. Napolniteljami there can be a peat crumb, a wood flour, the small sawdust, the crushed asbestos or a chalk sifted through a fine sieve. Bitumen plavjat before dehydration, remove from fire, at intensive hashing add in the small portions dry napolnitel. Apply in a hot condition. The roof painted by such mastic serves for 3-5 years longer. At correct leaving and regular repair service life considerably lasts.