Seam roofing: its cost and advantages

For this method of roof installation, metal sheet materials are used - copper, aluminum, galvanized steel, zinc-titanium. The most reliable is considered to be a copper coating, the service life of which is estimated at 100 years. In terms of price-quality ratio, the most applicable material is galvanized steel sheet.

The thickness of the roofing sheet ranges from 0.25 to 0.5 mm, depending on the size and construction of the roof. The size of the "picture" (picture is a sheet with folded folds along the length) 625 × 1000 mm. Coiled steel is used up to 10 meters in length, which eliminates the need for transverse connections.

The sheets are joined together by forming a seam joint directly at the work site.

For this, a special hand or electric tool is used - a folding bender. Standing seam is used for longitudinal joints, recumbent - for transverse seams. A relatively new material for standing seam roofs is "clickfalz". When installing, just push down on the fold to lock it in place. The operational properties are fully preserved.

Prices

Prices are in rubles per 1 m² as of November 1, 2015

Name	Coating	Thickness, mm	Price
Up to 200 m2	More than 200 m2
Standing double fold, reamer 625 mm	galvanized	0,5	248	237
galvanized	0,55	279	266
galvanized	0,7	327	312
polyester	0,7	451	422
Printech	1,7	592	547
Safari	2,7	473	437
Velur 20	0,5	473	441
Clickfalz, sweep 625 mm	polyester (Satin)	0,5	394	368
polyester	0,7	520	486
polyester Premium	0,5	458	423
Printech	0,5	683	636
Safari	0,5	545	508
Velur 20	0,5	545	508
Rebate strip 625 mm	galvanized	0,5	222	212
galvanized	0,55	254	242
galvanized	0,7	304	290
Polyester (Satin)	0,5	320	299
polyester	0,7	433	405
polyester Premium	0,5	376	347
Printech	1,7	575	531
Safari	2,7	456	421
Velur 20	0,5	456	425
Flat sheet 1250x2000	galvanized	0,5	217	207
galvanized	0,55	248	237
galvanized	0,7	299	275
Polyester (Satin)	0,5	320	299
polyester	0,7	433	405
polyester Premium	0,5	376	347
Printech	1,7	538	497
Safari	2,7	456	421
Velur 20	0,5	456	425
Support ventilation pass for rebate	Per running meter	150	142
Roof fixed clamp, stainless steel	per piece	13	12
Sliding roof cleat, stainless steel	per piece	21	20

The cost of installation of various types of roofing:

The cost of installing piece shingles
Installation of the lathing	150 r / m2
Installation of ceramic tiles, brass	450 r / m2
Bieber installation	600 r / m2
1200
The cost of installing soft tiles
Installation of the lathing	100 r / m2
Solid base device	150 r / m2
Laying soft tiles	350 r / m2
600
The cost of installing metal tiles
Installation of the lathing	100 r / m2
Installation of metal tiles	350 r / m2
Aerator ridge device	600 rub / m2
450
The cost of installing a standing seam roof
Installation of the lathing	150 r / m2
Installation of seam roofing	600 r / m2
Aerator ridge device	300 rm.pog
750
Comparable costs for all types of roofing
Overhang boxes device	300 r / m.pog
Sewing overhangs with soffit	350 r / m2
Board filing	390 r / m2
Installation of the gutter	350 rub / m2
Installation of drain pipes	300 r / m.pog
Installation - dismantling of scaffolding	75 r / m2

As can be seen from the tables, with a comparable cost of work on the construction of a roof of various types, the cost of the initial material for a folded roof is much lower than the cost metal tiles.

All other things being equal, the cost of standing seam roofing seems to be cheaper by 30-35%.

A complete calculation of the roof can be done only with a roof project in hand. It should be noted that specialized calculators always work on the websites of professionals, with the help of which it is easy to make a calculation for any options and structures of the roof.

Device technology

Traditional roofing technologies are still widely used today.

The main stages of roofing:

1. Production of paintings according to roof drawings, bending of edges for the subsequent formation of folds.
2. Lifting pictures to the work site, joining with double or single longitudinal folds.
3. Installation of clamps and fastening sheets to the crate.
4. Installation of aprons from the material of the main roof on all technological openings of the roof (pipes, air ducts, etc.).

Clamps - metal plates installed in the rebate at one end. The other end is fixed with screws to the lathing. Clamers are installed at a distance of 50-60 cm from each other.

The difference between modern technologies and traditional ones is the use of rolled metal for seam roofing. The installation for the formation of the folded bend is located at the bottom, the pictures of the required length after making the bend are fed to the roof, where they are installed in place.

A double fold is formed on them with a hand tool. The absence of the need for transverse recumbent folds contributes to an increase in labor productivity and a decrease in labor intensity.

The use of titanium-zinc roofing or copper sheets for roofs has some features:

1. When working with these materials, the slightest damage to the sheets should be avoided in every possible way; if marking is necessary, only markers can be used.
2. Installation is allowed at an air temperature of at least +5^OWITH.

On roofs with seam roofs with slope angles of more than 12^O necessarily, in accordance with the requirements of SNiPs, it is necessary to install fences.

The requirement is due to the following reasons:

1. Easy snow movement from seam roofs.
2. Creation of safe working conditions during their maintenance.
3. Prevention of damage to the drain.

Scope and characteristics

The popularity of seam roofs is primarily due to their comparative cheapness and exceptional tightness.

There are practically no restrictions on the complexity of the structure; they are used in dome structures and in complex multi-level roofs.

Performance characteristics:

1. A well-made rebate ensures an exceptional tightness of this type of roof.
2. Simplicity and speed of installation.
3. Paintings made of galvanized sheet roll are extremely durable.
4. The absence of fastenings through the sheets eliminates through corrosion of the metal of the roof and ensures the integrity of the coating.
5. The use of recumbent transverse joints ensures a quick drain of water and bliss from the roofs.
6. The lightness of the design allows the use of lightweight materials to create frames and lathing.
7. Fire safety.

Advantages and disadvantages

Like any structure, such a roof has its own disadvantages and advantages.

Among the advantages, the following factors can be noted:

1. Long operational period, which, with the simplest maintenance, can reach 50 years or more.
2. Wide range of colors covering material.
3. Ease of constructionthat does not overload the building structure.
4. Fastening reliability the roof to the lathing, which is due to the increased resistance to wind loads.

Among the shortcomings, the following features are noted:

1. Increased noise level from rain or strong wind.
2. Application of special equipment and tools during the production of works on the installation of the roof. Execution of work requires highly qualified performers, and in some cases a certificate for roofing work is required.

Conclusion

Summarizing the above, we can draw conclusions:

1. Seam roofing remains relevant in our time due to the relative cheapness and high performance.
2. In terms of aesthetics, such roofs are inferior to new materials, especially those made of galvanized steel. Copper zinc-titanium roofs look very good, but their cost is quite high due to the high prices for the main material.
3. In industrial construction, folded roofs are the most practical, efficient during installation, and durable.
4. One of the disadvantages of standing seam roofs is their high degree of electrification, therefore reliable grounding device such roofs are a prerequisite for safe operation.