Roof elements

Roof elements

Neco prides itself in its exceptional proficiency in designing and supplying roof elements. We provide warm and cold roof elements for a wide range of applications. For example, we are unique as a manufacturer and supplier of small lean-to and gable roof elements.

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Roof elements

Warm roof elements

We are the only company in Finland to prefabricate small warm roof elements either as lean-to or gabled roofs. Depending on the type of construction and usage, the roof can be implemented either as a high roof or as a normal flat roof.

Warm roof elements are typically used in detached houses, terraced houses, care facilities, and day-care centres. In most cases, these are one- or two-storey buildings.

Using warm roof elements reduces the construction time significantly and allows the building to be brought to a weatherproof stage and the heating to be turned on after a quick installation process.

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WARM SLOPED ROOF ELEMENT

lämmin lapeakattoelementti kuvattuna sivusuunnasta

This roof is suitable for Finnish fire class P3 buildings from detached houses to terraced houses. The roof can be completed with eaves, small animal nets and fire compartments. The roof can be implemented as a sloped roof or as a gable roof by using a ridge beam.

Structure:
Underlay
18mm OSB
100mm ventilation gap
Load-bearing structure + mineral wool
Vapour barrier (plastic)
48mm battening, 400mm centres

Technical characteristics: U value 0.09W/m2K, element weight 0.6kN/m2, maximum element size 2.4m x 12.4m.​

Precision of manufacture in conformance with SFS5978.

WARM GABLE ROOF SYSTEM

perinteinen lämmin harjakattojärjestelmä

The gable roof system consists of three element products:

1) CEILING ELEMENT YP

The ceiling element can be used to equip the building with a warm wall head. Support elements and a cold roof can be installed on top of it, so that the roof of the building can be finished quickly.
 Sarking boards, work surfaces, and support element lower guide timbers
 Load-bearing frame according to structural plans

Structure:

100mm mineral wool (loose wool on site)
Vapour barrier (plastic)
48×48 battening, 400mm centres

2) SUPPORT ELEMENT TK
Support elements are installed below the cold roof in the shape of the building’s roof. Support elements are supported on top of a concrete frame or ceiling elements. The support element can also be prefabricated as a compartmented version.

Structure:

42×98-198 frame C249mm
Wind barrier plasterboard or sarking boards

3) COLD ROOF KK
The roof is installed on top of a load-bearing concrete frame or ceiling elements so that it is supported by the support elements. Weight 0.3kN/m2.

Structure:
Underlay TL2
18 mm OSB
42×123-42×198 load-bearing structure according to structural plans

Precision of manufacture in conformance with SFS5978.

Large roof elements

Large warm roof elements are typically used in the construction of large production facilities, shops and halls. Using a warm roof element significantly shortens the construction time, as the building can be brought to a weatherproof and heat-retaining stage very quickly.

We design the warm roof element and related structures and required details in accordance with the specifications of each client’s project. The maximum length of our prefabricated large roof elements is 25 meters.

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WARM LARGE ROOF REI30

Puolilämmin suurkattoelementti

A warm large roof is suitable for the construction of large roof surfaces for industrial and commercial buildings, for example. The large element, with a maximum size of 60m2, speeds up the installation and allows the building to be sheltered from the weather and warmed up quickly.

Structure:
Underlay TL2
18 mm OSB
123-148mm beams and ventilation
LVL-S load-bearing structure according to structural plans
330mm mineral wool A1
Vapour barrier (plastic)
98mm battening and mineral wool A1
15mm fire-resistant plasterboard B-s1, d0, white cardboard

Technical characteristics: U-value 0.09W/m2K, weight 0.65kN/m2, suspension load 0.30kN/m2, fire resistance REI30, maximum element size 2.7m x 25m.​

Precision of manufacture in conformance with SFS5978.

WARM ROOF REI60

A warm large roof is suitable for the construction of large roof surfaces for industrial and commercial buildings, for example. The large element, with a maximum size of 60m2, speeds up the installation and allows the building to be sheltered from the weather and warmed up quickly.

Structure:
Underlay TL2
18mm OSB​
123-148mm beams and ventilation
LVL-S load-bearing structure according to structural plans
​
330mm mineral wool A1​
Vapour barrier (plastic​)
98mm battening and mineral wool A1
15+15mm fire-resistant plasterboard B-s1, d0, white cardboard

Technical characteristics: U-value 0.09W/m2K, weight 0.65kN/m2, suspension load 0.30kN/m2, fire resistance REI60.​
​

Precision of manufacture in conformance with SFS5978.

SEMI-WARM LARGE ROOF REI30

The semi-warm large roof is suitable for projects where the thermal insulation requirement of the ceiling corresponds to the U value of 0.14 W/m2K.

Structure:
Underlay TL2
18mm OSB
123-148mm beams and ventilation
LVL-S load-bearing structure according to structural plans.
165mm mineral wool A1
Vapour barrier (plastic)
98mm battening and mineral wool A1
15mm fire-resistant plasterboard B-s1, d0, white cardboard

Technical characteristics:
U-value 0.14W/mm2K, weight 0.65kN/m2, suspension load 0.30kN/m2, fire resistance REI30.

Precision of manufacture in conformance with SFS5978.

SEMI-WARM LARGE ROOF REI60

The semi-warm large roof is suitable for projects where the thermal insulation requirement of the ceiling corresponds to the U value of 0.14 W/m2K.

Structure:
Underlay TL2
18mm OSB
123-148mm beams and ventilation
LVL-S load-bearing structure according to structural plans
 165mm mineral wool A1
 Vapour barrier (plastic)
98mm battening and mineral wool A1
15+15mm fire-resistant plasterboard B-s1, d0, white cardboard

Technical characteristics:
U-value 0.14W/mm2K, weight 0.65kN/m2, suspension load 0.30kN/m2, fire resistance REI60.

Precision of manufacture in conformance with SFS5978.

COLD LARGE ROOF REI30

The cold large roof element is used in buildings with large roofs where thermal insulation of the roof is not required.

Structure:
Underlay TL2
18mm OSB
 123-148mm beams and ventilation
LVL-S load-bearing structure according to structural plans
 165mm mineral wool A1
Vapour barrier (plastic)
98mm battening and mineral wool A1
15mm fire-resistant plasterboard B-s1, d0, white cardboard

Technical characteristics:
U-value 0.14W/mm2K, weight 0.65kN/m2, suspension load 0.30kN/m2, fire resistance REI30.

Precision of manufacture in conformance with SFS5978.

COLD ROOF REI60

Structure:
Underlay TL2
18mm OSB
123-148mm beams and ventilation
LVL-S load-bearing structure according to structural plans
 Vapour barrier (plastic)
98mm battening
15+15mm fire-resistant plasterboard B-s1, d0, white cardboard

Technical characteristics:
Weight 0.65kN/m2, suspension load 0.30kN/m2, fire resistance REI60

Precision of manufacture in conformance with SFS5978.


Cold roof elements

We customise prefabricated cold roof elements to suit the specific requirements of each project. Typical applications for cold roof elements include multi-storey buildings, schools, and large care facilities.

Cold roof elements eliminate the need for a separate weather guard, as the installation of wall and roof elements can be phased so that the finished structures are not exposed to rain before the roof elements are installed. Cold roof elements are suitable for buildings with a load-bearing ceiling.

Integrating cold roof elements in a construction project means that there is no need to separately protect structures from the weather, which saves costs and significantly shortens the construction time. Using cold roof elements shortens the construction time typically by several weeks or even months.

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COLD ROOF ELEMENT KK

Katto asennetaan tukielementtien varaan kantavan betonirungon tai yläpohjaelementtien päälle.

Rakenne:
Aluskermi TL2​
18 mm OSB-levy​
42×123-42×198 kantava rakenne rakennesuunnitelmien mukaan ​​

Tekniset ominaisuudet: elementin paino 0,4 kN/m2, elementin maksimikoko 2,7 m x 13 m.​

Valmistustarkkuudet SFS5978 standardin mukaan.

COLD ROOF KK-LVL

The roof is installed on top of a load-bearing concrete frame or ceiling elements so that it is supported by the support elements.

Structure:
Underlay TL2
18mm OSB​
42×200-51×300 LVL-S load-bearing structure according to structural plans

Technical characteristics: Element weight 0.4kN/m2, maximum element size 2.7m x 13m.​

Precision of manufacture in conformance with SFS5978.

SUPPORT ELEMENT TK

Support elements are installed below the cold roof in the shape of the building’s roof. Support elements are supported on top of a concrete frame or ceiling elements.

Structure:
42×98-198 frame C24​
9mm wind barrier plasterboard or sarking boards

Technical characteristics: Element weight 0.3kN/m2, maximum element size 3.8m x 12.4m

Precision of manufacture in conformance with SFS5978.

SUPPORT ELEMENT, COMPARTMENTED TK-OS

Structure:
42×98-198 frame C24​
13mm wind barrier plasterboard, 1 or 2 pcs​

Technical characteristics: Fire resistance EI15/EI30, element weight 0.3kN/m2, maximum element size 3.8m x 12.4m. ​ ​

Precision of manufacture in conformance with SFS5978.

Do you need help with element design and delivery?

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