Contractors

Full control over water, moisture and dust!

Time and quality are crucial on a construction site. You are responsible for progress, health, safety and the environment, and for ensuring that the result is satisfactory. Here you will find methods, equipment and documentation in one place.

Start with the introductory video, which is less than a minute long – it will give you the full picture. Then move on to the checklists and the technical article, where we show you:

When to choose a condensation or adsorption dehumidifier
How to set up clean zones and the correct negative pressure
How to measure, map and document in a way that stands up to scrutiny

Five measures to secure the construction site

Dry

It is not enough for the surface to feel dry. Choose the right method and equipment: a condensation dehumidifier at normal temperatures – or adsorption when it is cooler. Ensure good air circulation and log the moisture values during the drying process so that you are in control.

Water

Stop the water flow quickly. Use a bilge pump or water vacuum, and proceed immediately to stable building drying. This will help you avoid unnecessary delays.

Dust

Capture dust where it occurs. Use an M/H class vacuum cleaner or local exhaust ventilation. Install HEPA air purifiers to remove airborne dust and ensure clean air. Alternatively, use extractors with fans and hoses to collect the dust.

Securing a Clean, Dry Building

Cordon off the areas so that dirt and moisture do not spread. Apply slight negative pressure and create zones with plastic sheeting to separate clean and dirty zones and secure areas that are not affected.

Measurement and documentation

Create security with careful mapping. Log moisture values RF/°C and measurement points, take photos along the way, and attach SDS if necessary. Then you will have complete documentation in place.

Products for construction sites

Proff Axial 50 cm drying fan with floor stand

1,294 NOK

Purchase

Dehumidifier PNA525 Adsorption

25,950 NOK

Purchase

Condensation dehumidifier PNA55L

23,175 NOK

Purchase

Condensation dehumidifier PNA35

20,085 NOK

Purchase

Millimetre pump PNP480, 1 piece

7,950 NOK

Purchase

Condensation dehumidifier PNA70 Eco with humidity control, pump

11,900 NOK

Purchase

Snail shell fan PRO25 medium

2,529 NOK

Purchase

MEX5 kit Renovation kit, BSIK-F

29,900 NOK

Purchase

Water vacuum cleaner N51 with drain pump, 2 hoses 10+6 m

19,900 NOK

Purchase

Dust and water vacuum cleaner R590

9,990 NOK

Purchase

Millimetre pump PNP800, 2´stub

8,990 NOK

Purchase

Groundwater pump 340L 1 1/4 m/float

4,069 NOK

Purchase

Water vacuum cleaner Ronda 550

30,385 NOK

Purchase

Furniture blocks, 500 pieces

6,000 NOK

Purchase

Floor squeegee 55 cm

253 NOK

Purchase

Covering plastic 0.04 mm x 3 m x 25 m

544 NOK

Purchase

Dust and water vacuum cleaner R590

9,990 NOK

Purchase

Industrial vacuum cleaner Ronda 40H 1100w

14,104 NOK

Purchase

Industrial vacuum cleaner Ronda 2000 2200w

46,865 NOK

Purchase

PNS2000 Hepa vacuum cleaner

1,851 NOK

Purchase

Proff Axial drying and evacuation fan Ø30 cm

3,717 NOK

Purchase

Sto & Go spiral hose Ø30cm

2,604 NOK

Purchase

Dust bag for drying/evacuation fans 30 cm

1,350 NOK

Purchase

Air purifier Hepa 650

18,577 NOK

Purchase

Pro-Fit assembly glove, 1 pair

29 Kr

Purchase

Assembly glove size 10, lined and waterproof

152 Kr

Purchase

Dust mask with valve P3, 10 pcs

400 NOK

Purchase

Safety glasses Zekler

61 Kr

Purchase

Half mask Sundstrøm M/L set with filter

1,160 NOK

Purchase

Disposable suit 4600 type 5-6 size XL

71 Kr

Purchase

Safety glasses Uvex

270 NOK

Purchase

Full face mask Sundström SR 200

3,549 NOK

Purchase

Common mistakes – and how to correct them

Challenge

Condensation dehumidifier in cold zone → low effect
Adsorption in warm rooms → expensive operation
Air purifiers with no effect → incorrect placement
H-class vacuum cleaner without zone → false sense of security
Too much negative pressure → cold and humid air enters
Late filter changes → increased back pressure
Asbestos or other materials harmful to health

Solution

Switch to adsorption or increase the temperature to speed up the drying process.
Use a condensation dehumidifier when the temperature is normal – it provides higher efficiency, lower drying costs and easier installation.
Ensure that the machine is positioned so that it has free air flow for best results.
Ensure that you establish clean and dirty zones and slight negative pressure before you begin.
Adjust the pressure and seal any leaks in the zone.
Set fixed intervals, log replacements, and check machines and filters regularly.
Only use approved protective equipment and machinery for the purpose. Your health and safety and legal requirements come first.

Challenge

Solution

Challenge

Solution

Challenge

Solution

Challenge

Solution

Challenge

Solution

Challenge

Solution

Challenge

Solution

Checklist - Proff Norway

Checklist

Put RTB – Clean, Dry Construction into practice from planning to completion. Here is a handy checklist to help you keep track of the entire process.

Use it as a support tool for planning and follow-up on the construction site. Download the checklist and get a concrete tool that helps you document progress and ensure RTB standards in every project.

Five steps for a safe and efficient construction site

With well-considered choices, you gain control over time, quality and health, safety and the environment – and documentation that shows what has actually been done. In this technical article, you will find specific advice on how to handle:

Dry

Water

Dust

Security

Measurement

The article provides you with ready-made checklists – ready to be lifted straight into your quality plan.

Frequently asked questions

Which dehumidifier should I choose – condensation or adsorption?

Condensation works best at normal temperatures and with steady, high moisture loads. Adsorption is the right choice in cooler temperatures. Adsorption is chosen for drying concrete and construction drying, or when condensation provides insufficient effect. The choice for phase 2 drying after first aid.

How do I know if the building dryer is correctly dimensioned?

Monitor the RF and temperature in the log or on the display. If you lack capacity or air flow, increase the number of dehumidifiers and/or install more fans or reposition them.

How quickly can I expect results from the building dryer?

You should see a steady decrease in RF during the first 24 hours. If this does not happen, see also «How do I know if the building dryer is correctly dimensioned?».

Do I need an air purifier in addition to a vacuum cleaner?

Yes, when airborne dust occurs or when local exhaust ventilation is not sufficient. Position HEPA air purifier(s) so that the air flow goes from the source towards the filter.

How do I set up zones and sub-zones in practice?

Delimit or divide the area with plastic, create a simple airlock, seal leaks and use a fan to create slight negative pressure. Remember to use your own vacuum cleaner and routines for each zone.

What should I do if the log shows that RF is stagnating?

First, check that the equipment is correctly dimensioned. Check the air flow and leaks in the zone. This can often be solved by using more fans, sealing the zone that is being dried, or switching to the correct type of dehumidifier.

What do I need to document to avoid disputes later on?

Measurement log (RF/°C and measurement points), photo log (before/after measures), as well as documentation for machines used and SDS for chemicals. Then you will have good documentation.

What is the minimum PPE required for dust work?

Measurement log (RF/°C and measurement points), photo log (before/after measures), as well as documentation for machines used and SDS for chemicals. Then you will have good documentation.

What happens when you submit this contact form?

1. Fill in the form and describe what you need
2. We will contact you within 2 hours with a specific proposal.
3. You will receive an offer and can order directly from the online shop.
4. Goods are dispatched the same day from Larvik if they are in stock.

We make it easy for you! Just describe what you need, and we will contact you with a tailor-made proposal within two hours. Once you are satisfied with the offer, you can order directly from our online store – and if the items are in stock, we will ship them the same day from Larvik.

Most importantly, you don't have to worry about spam. We never share your email address with any third parties, and you will definitely not receive any unnecessary advertising from us. We are always ready to answer your questions quickly and easily, so that you get the help you need.