Ahmet Alptekin Kasar
Founder, Managing Director
Updated: 2026-11-09
This article is for contractors, tender teams, aggregators, renovation groups, energy consultants and wholesalers working on Hungarian housing. It covers one thing: which material documents to close at order and at delivery, so that invoices, certificates and specifications line up later. Programme timing and supply logistics are in our Wekerle+ supply brief (in Hungarian). The comparison of the two schemes is in Wekerle+ 2027 vs EKR, and partner terms are on the Wekerle+ partner page.
Why the paperwork matters now
On 27 October 2026 the Hungarian government announced the Wekerle+ Energetikai Felújítási Támogatás és Hitel, a renovation grant and loan. The family-house strand opens in February 2027, the multi-unit and panel-block strand in March 2027, and the scheme runs until 2030. The announcement and Portfolio put the budget at more than HUF 600 billion; Economx reports HUF 633 billion. The text of the official call is not out yet.
Two rules are already known. Every cost has to be backed by an invoice, and the two energy certificates must show at least a 30% primary-energy saving. That sets the logic of the paper trail. The energy assessor calculates with a given λ value and thickness. The contractor orders that material. The invoice names the same material. The installed layer is the one the after-works certificate records.
If any link in that chain differs, it is hard to fix afterwards. We do not know which documents the call will ask for, and we do not claim to. What a careful buyer can do is record, at order and at delivery, the data from which any later proof can be put together.
The checklist
The list follows the acceptance routine we used on EKR deliveries. How to read a DoP line by line is covered in Declaration of performance for insulation. Print the checklist and take it to site with every delivery.
| Check | What to look at | Value | Source |
|---|---|---|---|
| Declaration of performance (DoP) | declared values match the order | per product | manufacturer DoP |
| CE marking | on the pack or label | – | manufacturer DoP |
| Thermal conductivity | λD per DoP | ODE Starflex: 0.039 W/(m·K) | ODE DoP (EN 13162) |
| Thickness, layers | number of layers and thickness as ordered | 25 cm = 2 × 12.5 cm, second layer cross-laid | EuConX attic build-up |
| Vapour control layer | Sd per DoP | EuConX BK45: Sd 20 m | BK45 DoP |
| Breathable membrane | Sd per DoP | EuConX BD70: Sd 0.02 m | BD70 DoP |
| Delivery note | items and quantity = order | m², pallets | order, delivery note |
| Roll / batch label | legible, matches the delivery note | – | packaging |
| Storage | dry, covered | – | – |
At order: what to fix in the quote
The checklist only works if the order is precise. For every line, the quote and the order confirmation should give the exact product name, the λD value, thickness and number of layers, the Sd value for membranes, and the quantity in m² and pallets. Ask for the declaration of performance up front and check it against the energy assessor's calculation before the order is final.
ODE Starflex glass wool has a λD of 0.039 W/(m·K). In our attic build-up it goes in as 2 × 12.5 cm, 25 cm in total, with the second layer cross-laid. If the assessor works with a different λ or thickness, we quote to the project, including private-label production. What matters is that the quote carries the same value as the calculation.
Agree the invoice lines at the same time. An invoice that just says "glass wool" does not show which product or thickness went in. An invoice line with product name, thickness and quantity can be matched to the DoP and to the certificate. We give a written quote for every line with the exact material, thickness and λ.
At delivery: what to check on site
Delivery is the second point where paper and material meet. Check the delivery note line by line against the order: product, thickness, quantity. Look for the CE marking and the production label on the pack, and check that the label data matches the delivery note.
If something differs, write it on the delivery note at acceptance and tell the supplier. A missing pallet or a line in the wrong thickness is a simple matter on delivery day. Months later, at the after-works certificate, it is not.
Storage belongs to the paper trail too. Fibrous insulation and membranes have to be kept dry and covered until they are installed. Wet material is not what the DoP describes.
The membranes: Sd from the DoP
An attic floor build-up has two membranes with opposite jobs. Underneath, the vapour control layer slows moisture coming up from the living space. On top, the breathable membrane protects the insulation and lets vapour out. At delivery it is not enough to see that "membrane" has arrived: check the Sd value of each roll separately.
The EuConX BK45 vapour control layer has an Sd of 20 m, and its declaration of performance can be downloaded. Under the annex to Decree 18/2025. (VII. 31.) EM, the EKR attic measure requires a vapour control layer of at least Sd 20 m under the insulation. Whether Wekerle+ brings a similar material rule is for the call to decide.
What we bring from EKR
In the EKR loft programme we supplied contractors with materials and the papers for every delivery. In 2024 we delivered 500,000 m² of glass wool; in 2025–26, 1.1 million m² of glass wool and 4.3 million m² of membranes, with 98% of deliveries on time. The free EKR loft strand has been paused at most contractors since spring 2026, with no restart date announced. We track the current status on the EKR programme 2026 page and the reform risk in EKR buyer risk before 2027.
We carry the same routine into Wekerle+: DoP and delivery note with every delivery, data to the energy assessor in advance, and lines from one pallet to full trucks. Transit from Türkiye to Hungary takes 3–5 days, about 5 on average. If the material is not in stock, order to site typically takes 1–2 weeks. We deliver anywhere in Hungary.
The EuConX BD70 breathable membrane has an Sd of 0.02 m (declaration of performance). That is below the EKR limit of at most Sd 0.03 m for the dust cover.
What we do not do: we are not a Wekerle+ programme partner and not a HEM partner. We do not write applications, promise eligibility or install. We supply the materials and the papers; the contractor does the installation.
Request a quote
Send us the λ value, thickness, quantity (m², pallets or trucks), delivery site and timing, and whether you want private label: partner request · contact · +36 30 485 0258 · info@euconx.com. We reply the same working day.
Frequently asked questions
Which material documents will Wekerle+ require?
That is not known yet, because the official call has not been published. What is known: every cost has to be invoiced, and the two certificates must show at least a 30% primary-energy saving. That is why it makes sense to keep the DoP, CE marking, λ, thickness and Sd data, delivery notes and itemised invoices in order now.
What is a declaration of performance (DoP) and why check it at delivery?
It is the manufacturer's document stating the declared properties of a product, such as thermal conductivity or the Sd value. At delivery it lets you check that the product delivered has the values the energy assessor used and the order specified.
Is "glass wool" on the invoice enough?
Not for matching. An invoice line with product name, thickness and quantity can be checked against the DoP, the delivery note and the certificate. Agree this with the supplier at order.
What should I check on the two membranes?
The Sd value of the vapour control layer and of the breathable membrane, separately, from the DoP. The EuConX BK45 vapour control layer has Sd 20 m, the EuConX BD70 breathable membrane Sd 0.02 m.
What if a delivery does not match the order?
Write the difference on the delivery note at acceptance and tell the supplier. A missing line or a different thickness is still easy to settle on delivery day.
Is EuConX a Wekerle+ partner?
No. We are not a programme partner and not a HEM partner. We do not write applications and do not install. We supply materials and documents to contractors, groups and wholesalers, based on our EKR delivery experience.
Sources
1. Government of Hungary: Otthonteremtés, felújítás, bérlakás: elindítjuk az átfogó Wekerle Programot (in Hungarian), 27 October 2026
2. Government of Hungary: Wekerle Plusz information page (in Hungarian)
3. Portfolio: Lakásfelújítási támogatás 2027: igénylési feltételek, elvárások, tudnivalók egy helyen (in Hungarian), 27 October 2026
4. Economx: Kiderültek a részletek a Wekerle-programról (in Hungarian), 27 October 2026
5. Decree 18/2025. (VII. 31.) EM, annex, points 1.3.1.1 g) and 1.5.1.1 g) (in Hungarian)
6. Declarations of performance: EuConX BK45, EuConX BD70, ODE glass wool (EN 13162)
7. EuConX: EKR programme 2026, attic build-up, delivery records and company data (volumes, on-time rate, transit, lead time, reply time)
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