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The RMI weather table


A workday

If the execution period is set in working days, the agreement between the contractor and the client must specify what is meant by “working day”. Usually not considered a working day:

  • Saturdays and Sundays (2 x 52 = 104)

  • holidays (10)

  • vacation days (20)

  • rest days as a result of the reduction in working hours (12).

Assuming 365 calendar days and less the above days, you therefore arrive at a maximum of 219 workable days in a calendar year. 


Weather day off

It is logical that days due to weather are not counted as working days for the execution period. You should not only take into account the number of days of bad weather itself. But also with the number of days on which work was prevented due to bad weather. e.g. the construction site being flooded, wet facades as a result of the past rainy period, as a result of which no facade painting can be carried out.

The weather days that the contractor wants to invoke to extend the execution period must of course be accepted by the client. Which can cause discussion. It is then recommended that a procedure is established in advance to determine the weather days. This can be done, for example, by including the following provisions in the contract (for private assignments):
“The following days are not considered working days:

  • Saturdays, Sundays and legal holidays;

  • the days on which the company's activity is stopped due to statutory holidays and compensatory rest;

  • the days on which unfavorable weather conditions (rain, frost or persistent snow) make work impossible for at least four hours, provided that these circumstances are noted in the site book and reported to the client once a month. (so below!)

  • the days on which the work is stopped due to force majeure such as strikes, lock-outs, accidents, etc.;

  • the days on which the execution of the agreement is interrupted by order or through the actions of the client;

  • the days of the period that begins on the date of completion of the works as stated in the request for provisional acceptance and ends when the minutes of the provisional approval or refusal of the works are drawn up.”


Frost day or onlyht again

In the construction sector, a distinction is made between unworkable days due to “bad weather” and “days off due to frost and persistent snow”. The frost days, which can occur in the period from October 1 to April 30, are determined by the Fund for Social Security-Building (FBZ-Bouw) for 12 different geographical zones. 

The other days due to bad or unworkable weather obviously depend on the local weather conditions and the specific nature of the work to be carried out. One of the possibilities to prove bad weather these days is to use the monthly tables “15” and “16” of the RMI.

Table “15” shows the temperature at 7 am and the duration of the precipitation periods (minimum 2 hours) between 7 am and 5 pm for each day at a number of measuring stations.
Table “16” lists the maximum wind gusts between 7 am and 5 pm (only gusts of at least 10 m/s).

Just this one more...

Keep in mind that by law breyne with key on the door ...from your paymentsin slices and the additional works (as client) gives an order to the contractor or building promoter... (e.g. chooses a larger kitchen or more expensive floors and has them installed, etc...) you are already the client from then on! ...and no moreafterthe provisional acceptance...and the contractor or building promoter are no longer the client from your payments of installments and additional work!

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