The roof of roofing material with his own hands

When the roof of outbuildings and garages as roofing often use inexpensive, but very popular material - roofing material.Most often, it is used for covering roofs with small inclination angle, that is, where other types of coatings can not ensure good waterproofing.The roof of roofing material with your hands is quite feasible, but it is necessary to understand the technology and styling features of the materials.

Roofing roofing material always has several layers, the lower layer is made of roofing underlayment that has no protective layer, and the final top layer - from roofing with grit.Sprinkling of roofing material has a different value of the fraction of the particle size depends on the stability of roofing material damage.

Stamps roofing material: how to understand them?

First of all, you must understand what is this material.Traditional, long known us the roofing material - a rolled material of cardboard, having a bitumen impregnation, with a dense top layer, smooth or having been dressed.More modern roofing modifications may be made based on the fiberglass to provide additional strength and waterproof material.So called evroruberoid has, moreover, a floating layer of polymer, which upon heating forms a sticky surface provides bonding roofing material to the base.Euroruberoid does not require the application of mastic between the layers.

Traditional roofing material has an alphanumeric marking indicating its purpose and specifications.For each coating layer is necessary to choose the appropriate roofing material.

first letter in the marking is always "F", it means the type of materials - roofing material.The second can be "K" - roofing, or "P" - lining.The third letter in the marking indicates the type of the upper layer: the "K" or "M" - coarse or fine-grained, "H" - scaly, "P" - dust-like.It may also be marked "E" - flexible.The figures mean the marking board density in grams per square metr.Dlya lower layers of roofing material roofing chosen brand RPF or RP, the top layer - RCM RCM RKCH, RCP.Surfaced roofing material is marked accordingly Moldova and Kazakhstan.

Determination of the number of layers and the calculation

material The number of layers of roofing material to create a reliable coverage depends on the roof pitch and possible snow loads, as well as the reliability of the roof itself and its ability to withstand the weight of roofing material and asphalt.The lower the slope of the roof, the more layers of roofing material is required for the airtight waterproof coating.

Flat roofs with an angle of inclination of 2-3 degrees typically require placement of at least four layers of roofing material: three layers brand PSC-350, fourth - grade RCM-350.If the roof is used for the movement of people, the underlying layers should be four - so the roof can withstand and weight of the person and any snow load.

Roofs with a slope of 3 to 6 degrees is usually coated with three layers of roofing material - two and one underlying roofing.If the roof pitch from 6 to 15 degrees, only two layers of roofing material.On roofs with a tilt angle of 15 degrees roofing material used rarely, usually as a waterproofing layer under other types of coverage: decking, ondulin or slate.

When calculating the material should take into account not only the number of layers, but also the mandatory overlap of 10 cm for each band, as well as the supply of 20 cm on the length of the strip at the ridge and slope of the roof.The resulting amount of material is rounded up to the area of ​​the roll.

Mastics for gluing roofing

To ensure a snug fit to the roof of roofing material, glue it on the asphalt mastic.The exception is surfaced roofing material, which already has a layer of adhesive.Bituminous mastic can be as cold, ready and hot, which is necessary to pre-heat at a temperature of 150-200 degrees.

Cold mastic-based solvent commonly sold at banks, before applying it sufficiently stir thoroughly.Cold mastic is much easier to use, but longer drying, besides it does not provide sufficient strength to the coating.Therefore, roofing roofing material often use hot mastic.

DHW mastic requires some time.Bitumen is sold in pieces, in solid form and must be heated to a viscous state, then it adds the reinforcing filler.Heat the bitumen in the boiler, buckets, drums or any other containers using a blowtorch or open flame before the formation of foam and bubbles rare.The froth is removed, a filler is added to the bitumen in an amount of 20% by volume.The filler can be sawdust, peat, sand, fibrovolokno.Mastic thoroughly mixed and applied hot to the roof surface.

Technology laying roofing

1. roof surface free from the old coating residues, garbage, dirt and dust.Concrete surfaces can be treated with primer for bituminous mixture that improves adhesion.The wooden roof is sewn up solid crate of edging board, zakonopachivayut all cracks and holes.Slice
2. roofing felt strips on the required length with a margin of 20 cm at both ends.Strips of roofing material on the roof with a slope of up to 3 degrees can be placed along a slope and across.At a higher slope to prevent stagnation of water on the strip joints are placed along the slope.
3. On the prepared surface is applied first layer of bituminous mixture and immediately, without waiting for its hardening, pre-cut strips are laid with 10 cm overlap roofing brand RPF or RP and carefully rolled them roll, ensuring full adhesion to the material surface.The roller may be made from a piece of metal pipe or rolled from a roll of soft, but heavy material.
   

   Stacking layers of bituminous mastics

4. Apply a second coat of mastic and put another layer of roofing material with an offset of ½ page, so that the middle of the strip was knocking on the previous layer.So everything is laid layers of lining.
5. Before laying the last layer of roofing material on the roof verify the absence of bubbles and air pockets, rolled again if necessary.The last layer of roofing material or brand RCM RCM similarly placed, pasting it on bitumen mastic, and should, have been glued to the joints quality, there was no damage to the material surface and spreading.
   

   Sheets Bituminous rolled special roller

stacking technology weldable roofing

1. Prepare the roof surface does not differ from the preparation pokleechny under the roofing material.Some manufacturers roll facing materials, which can be placed on top of old coating, which significantly reduces the time to prepare the surface.
2. The first coating of the roof surface to be processed polymer or asphalt mastic material for better adhesion and improved waterproofing properties.
3. roll fusion roofing slightly rolled at the place and heated with a blowtorch before beginning whitening and dissolution of the adhesive layer, and then firmly pressed it to the surface and rolled rink.Continuing to roll out a roll of 20-30 cm, repeat the procedure.Overlapping layers of roofing material also has to be about 10 cm.
   

   The rolling layers of weldable roofing

4. When quality surface preparation is usually only one or two layers of roofing material weld depending on the roof pitch.At the same time for the bottom layer is selected evroruberoid RM brand, for low - grade RC with grit.

correctly laid roofing felt has a warranty period of 5 years, but with good care and timely clearing roofs of snow and debris, repair damaged areas so the roof can last for more than 25 years.The roof of roofing material, made with his own hands, will help save a lot of money for the construction of garages and other buildings.