Roof types: shapes, plans and what each one costs
Six main shapes with top-view diagrams. And the main thing people usually don’t mention: how much more each next shape costs than the previous one on the same house.
The more slopes and joints a roof has, the more expensive it is — and not only because of the area. Cutting waste grows, the share of accessories rises sharply, and installation gets more expensive. On the same house the difference between a simple gable roof and a complex multi-gable roof reaches a quarter of the estimate.
The shape changes the price more than it seems
A roof shape is usually chosen by eye: you like it or you don’t. But it brings three cost items with it, and each grows with complexity:
- Cutting waste. Sheets have to be cut to fit the slopes. On a simple roof about 7% of the material ends up as scrap, on a complex one — 13%.
- Accessories. Ridges, hips, valleys, eave and verge flashings, fasteners. That is 18% to 38% of the cost of the tiles themselves. This is where the difference hurts most.
- Installation. Complex junctions take longer and are riskier to build, so the rate per square metre is higher.
| Complexity | Waste | Accessories | Installation |
|---|---|---|---|
| Simple (gable) | 7% | 18% | 5,500 ₸/m² |
| Medium (hip) | 10% | 28% | 6,500 ₸/m² |
| Complex (multi-gable) | 13% | 38% | 8,000 ₸/m² |
The coefficients come from a KAZROOF engineer and are used in our calculator. Installation rates are Almaty averages.
Six main shapes
The diagrams are top views — that way the shapes are unambiguous, unlike a side view where a gable roof and a pyramid roof look the same.
A single plane sloping in one direction. The cheapest and fastest: minimal cutting, almost no accessories. Most often used for garages, extensions, bathhouses and modern-style houses.
Two slopes with a ridge in the middle and vertical gables at the ends. The most common shape for a private house: predictable to calculate, cheap to install, sheds snow well.
Instead of gables — two extra slopes. There are no vertical walls under the roof, so it resists wind better and the facade gets less wet. The price: four hips, more cutting and noticeably more accessories.
A special case of the hip roof: there is no ridge at all, four slopes meet at one point. Only suits a house with a square footprint. Looks neat, but there is a lot of cutting — every slope is triangular.
A gable roof in which each slope is broken: steeper below, shallower above. The dotted lines show the breaks. The point is to turn the loft into a living floor without building up the walls.
A house of non-rectangular shape, extensions, bay windows, dormers — and the roof breaks into several intersecting slopes. Valleys appear — internal corners where snow and water collect. The most expensive shape and the most demanding on installation quality.
Flat roofs are a separate case: composite and metal tiles are not laid on them; roll and membrane materials are used there, and that is a completely different calculation.
One house, three shapes — what it comes to
Take a house with a 120 m² footprint. The roof area comes to about 180 m²: the footprint is multiplied by roughly 1.5, a correction for pitch and overhangs. The material is KAZROOF Standart at 7,960 ₸/m². We calculate exactly what the calculator does.
| Shape | m² incl. waste | Tiles | Accessories | Materials total |
|---|---|---|---|---|
| Gable | 193 | 1 536 280 ₸ | 276 530 ₸ | 1 812 810 ₸ |
| Hip | 198 | 1 576 080 ₸ | 441 302 ₸ | 2 017 382 ₸ +204 572 ₸ · +11% |
| Complex | 203 | 1 615 880 ₸ | 614 034 ₸ | 2 229 914 ₸ +417 104 ₸ · +23% |
Note where the difference comes from. Almost the same amount of tile is used in all three cases — the spread is less than 80 thousand. But accessories grow from 276 to 614 thousand, that is, more than twofold. It is accessories, not area, that make a complex roof expensive.
With installation the gap is even more visible: a gable roof will cost about 2.87 million, a complex one 3.85 million.
Choose the roof shape and area — you’ll see the full amount with waste, accessories and installation. Switching between shapes is instant: you can see what each complication costs.
Open the calculator →How to choose a shape
If you need a living upper floor under the roof — a mansard or a gable roof with a sufficient pitch. Pyramid and hip roofs eat into the loft volume with their slopes.
If the budget matters — a gable roof. It gives the best balance of price, ease of installation and reliability. A mono-pitch roof is cheaper, but doesn’t suit every house visually.
If the house stands in an open, windy spot — a hip roof: it has no vertical gables to catch the wind.
If your plot gets a lot of snow — the pitch matters more than the shape. A shallow roof of any shape will hold snow, and that is a load on the rafters.
If you want a complex shape — budget not only for materials but for installation quality. Valleys and internal corners are the first to leak, and saving on the crew comes back as a leak within a couple of seasons.
Key takeaways
- Choose the shape by the house and the climate, not by a picture.
- It’s not the area that gets more expensive but the number of joints: accessories grow twice as fast as the area.
- The difference between a simple and a complex roof on the same house is about a quarter of the estimate.
- Before approving the design, calculate two or three shape options and compare the totals.
Half a minute, no call and no phone number: calculation first, contact details only if you decide to continue.
Calculate a roof →Frequently asked questions
Mono-pitch: one plane, minimal cutting and almost no accessories. Among shapes common for private houses — the gable roof: waste about 7%, accessories 18% of the tile cost.
On a house with a 120 m² footprint, materials for a gable roof cost 1,812,810 ₸, for a multi-gable roof 2,229,914 ₸. The difference is about 23%, roughly a quarter of the estimate.
Not the area but the joints. Almost the same amount of tile is used, while the share of accessories grows from 18% to 38% of its cost — ridges, hips, valleys and abutment flashings.
A calculation by area is an estimate: it does not account for the individual junctions, valleys and abutments of your project. The engineer confirms the exact bill of materials from the drawing.