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ZIP / SIP building system

ZIP / SIP panel technologyfor modern panel homes

ZIPHOME is a prefabricated panel building system based on structural insulated panel (SIP) principles — OSB boards bonded to an EPS insulation core, engineered for fast, dry and precise construction.

ZIP panel compositionZIP panel composition

Factory-made panels

ZIP / SIP panels produced by IDOPS BG in Bulgaria

OSB + EPS sandwich

Load-bearing sheathing bonded to an insulation core

Dry, fast assembly

Prefabricated parts assembled on site

Documentation available

Technical and fire-resistance documentation on request

The building system

What the ZIPHOMEbuilding system is

ZIPHOME is a prefabricated panel building system based on SIP — structural insulated panels. Each panel combines a load-bearing structure and thermal insulation in one element, so the wall is structural and insulated at the same time.

The goal is to combine structure, insulation and prepared construction logic into one coordinated system. Panels are manufactured by IDOPS BG in Bulgaria and can be used for walls, ceilings, floors and roofs.

Prefabricated, factory-made panels
OSB boards with an EPS insulation core
Designed for fast and dry construction
Used for walls, ceilings, floors and roofs
Panel composition

Inside the ZIP wall

An example ZIP wall composition — five layers working together for structure, thermal comfort and a finished facade.

Technical cross-section of an example ZIP wall: interior plasterboard, ZIP load-bearing panel, EPS insulation, reinforcement layer and exterior plasterPanel composition
InteriorExterior
1
2
3
4
5
  1. 1

    Interior plasterboard

    12.5 mm

    Interior finish and fire protection

  2. 2

    ZIP load-bearing wall panel (ZIP_170)

    170 mm

    Core structural and insulation element

  3. 3

    EPS thermal insulation

    160 mm

    Exterior insulation layer

  4. 4

    Reinforcement layer

    3.0 mm

    Embedded fibreglass mesh

  5. 5

    Exterior mineral plaster

    2.5 mm

    Weather-resistant facade finish

Assembly logic

From parts toa finished shell

Panels are joined with connecting elements and assembled on site into a load-bearing shell closed against the weather.

Technical 3D diagram: prefabricated ZIP / SIP wall panels and timber connecting elements on a foundation slab

From parts

Prefabricated panels and connecting elements arrive cut to size from the factory.

Technical 3D diagram: ZIP / SIP panels joined into a wall assembly with the floor and ceiling build-up

To wall assembly

Panels are joined with connecting elements and the joints are sealed, which supports the airtightness of the finished envelope.

Technical 3D diagram: completed structural shell assembled from ZIP / SIP wall, floor and roof panels

To shell construction

Walls, floors and roof form a load-bearing shell, closed against the weather and ready for fit-out.

Why panel construction

Predictable quality,built in at the factory

The advantages come from factory-made production, not on-site improvisation.

01

Factory-controlled production

Panels are made under controlled conditions with consistent tolerances.

02

Predictable dimensions

Precise, repeatable panel sizes simplify window, door and service fit.

03

Shorter on-site phase

The structural shell goes up quickly, compressing the on-site construction phase.

04

Dry construction process

A largely dry process reduces moisture and weather dependency on site.

05

Easier documentation coordination

A coordinated system makes project documentation and permits easier to align.

06

Low-energy & passive-ready

The thermal envelope suits low-energy and passive-ready design directions.

Passive slab

Insulated foundation,planned from the start

Foundation and slab insulation is difficult to improve once the house is built, so it is planned during construction, not added later.

A passive slab is an insulated foundation / slab concept that uses EPS-based components to reduce thermal bridges at the base of the building. The exact build-up is designed per project.

  • Planned during construction, not retrofitted
  • EPS-based components reduce thermal bridges
  • Designed per project and ground conditions
Passive slab conceptPassive slab concept
Technical documentation

Documentation youcan build on

Technical and fire-resistance documentation can be discussed during consultation or provided on request.

Product certificate

Product certificate — ZIPHOME building system

A product certificate issued for the ZIPHOME building system — prefabricated wood-based loadbearing stressed skin panels. It covers wall, ceiling and roof panels. The applicant and manufacturer named in the document is IDOPS družstvo.

Document no.
2233/222/§5a/2011
Issued by
Dřevařský ústav / Timber Institute, Prague — Authorised body No. 222
Date of issue
Fire resistance classification

Fire resistance classification — ZIP panel external wall

A classification report for the fire resistance of a load-bearing external wall of an assembled house with timber construction made of panels type ZIP, drawn up in accordance with EN 13501-2. The classification applies to the specific wall composition that was tested.

Document no.
FIRES-CR-103-11-AUPE
Issued by
FIRES, s.r.o., Batizovce — Notified Body No. 1396
Date of issue
Standard
EN 13501-2
Classification
REI 45-ef (o→i) · REI 45 (i→o)

For permits and design

Documentation can support building-permit and design coordination, discussed per project.

As stated in the report itself, this classification document does not represent type approval or certification of the product.

Fire-resistance documentation applies to a specific tested wall composition, not to every possible assembly.

Technical parameters

Panel parametersat a glance

A compact snapshot of the ZIP / SIP panel system. Values are indicative, per IDOPS BG manufacturer specification; final parameters are confirmed in technical preparation.

Panel constructionOSB boards + EPS core
Typical useWalls, ceilings, floors, roofs
Panel thicknesses120 / 170 / 210 / 270 mm
Basic panel width1,250 mm
Panel lengths2,500 / 2,650 / 2,800 / 3,000 / 5,000 mm
WiringElectrical channels can be prepared where relevant

Panel variant visualization

ZIP4_120120120mm
Core90 mm
Lengths
2500
ZIP4_170170170mm
Core140 mm
Lengths
2650280030005000
ZIP4_210210210mm
Core180 mm
Lengths
2650280030005000
ZIP4_270270270mm
Core240 mm
Lengths
2650280030005000
Outer boards (OSB)EPS coreSchematic comparison of panel variants — indicative, not to scale.

Example panel variants

VariantThicknessCoreLengths
ZIP4_120120120 mm90 mm2500 mm
ZIP4_170170170 mm140 mm2650 / 2800 / 3000 / 5000 mm
ZIP4_210210210 mm180 mm2650 / 2800 / 3000 / 5000 mm
ZIP4_270270270 mm240 mm2650 / 2800 / 3000 / 5000 mm

Final parameters for your project are confirmed during consultation and technical preparation.

Questions & answers

ZIP / SIP system,explained

What is SIP panel construction?

SIP (structural insulated panel) construction uses prefabricated panels that combine a load-bearing sheathing with an insulation core. The ZIPHOME system uses OSB boards bonded to an EPS core.

What is a ZIP panel made of?

A ZIP panel is a sandwich of OSB boards with an EPS insulation core, forming an element that is both structural and insulated.

Is the ZIPHOME system suitable for low-energy homes?

Yes. The thermal envelope and factory precision suit low-energy and passive-ready design directions; the exact standard is defined per project.

How fast is the on-site assembly phase?

Because panels are prefabricated, the structural shell is assembled quickly, which shortens the on-site construction phase. The exact time depends on the project.

Can the system be used with an individual house design?

Yes. The panel system is configured to individual house designs and adapted to the plot, layout and budget.

Is fire-resistance documentation available?

Classified fire-resistance documentation for a tested ZIP wall composition is available on request. It applies to that specific composition, not to every assembly.

Can technical documentation be used for permits?

Technical documentation can support building-permit and design coordination. The exact scope is discussed during consultation.

Discuss your project

Discuss your projectwith us

Send us your plot, project or idea and we will outline the suitable panel solution and the next steps.