To use the system, you must log in or, if you are not registered yet, then register

If you didn’t use the roof calculation system, then you need to activate it
Express calculation
Special offer!
From 08/17/2019 to 09/17/2019 we double the amount of payment!
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News in social networks
Operational news and information in:
@StroykaEXPERT_EN in Telegram
@en_stroyka in Twitter
Sunday, August 18, 2019
Changing the order of charging the subscription fee
Now, the subscription fee is charged every 30 days after activation, and not on the 1st day of every month.
Saturday, August 17, 2019
Special offer x2!
If you pay from August 17 to September 17, 2019, your account will be credited with twice as much money!
Saturday, August 10, 2019
Fixed issue with card payments
We fixed an error when paying by bank cards and electronic money, in which an error message appeared after payment
Sunday, August 4, 2019
Attention! Server migration august 8th!
On August 8, from 21 Moscow time until the end of work (approximately 6 am), our site will not work!
Saturday, August 3, 2019
The correction in the copy settings
Now work with copying settings has become more obvious to users!
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Fees for using roof calculation online

Tariffs are valid only for the roof calculation module.

  Per User Per Active User
Basic parameters and prices
License fee25$ per month65$ per month
One license entitlesconnecting and working as a single userConnecting an unlimited number of users, but the work of only one of them
Maximum users= number of licenses
Tariff restrictions
Number of projects
Slopes in the project
Providing access to the project to the client
Payment and Accounting
Test period 14 day 14 day

Tariff comparison

The main and basic difference in tariffs is that when paying per user, the maximum number of users cannot exceed the number of licenses, while when paying for an active user, the number of users is not limited, but the number of simultaneously working users is limited.

Tariff recommendation

The recommendation on choosing a tariff is simple: evaluate the degree of need for employees in the system and if each employee needs to calculate the material often enough, it is better to take the Per User tariff, but if the calculation is done from time to time and there are a lot of employees, then the Per Active User tariff.