How much and what insulation do I need for my extension?

The amount of insulation is dependent upon the particular element (ie roof, wall, floor) and the u-value required.

Click on the LABC u-value guide download which gives you more information Download

< Back to FAQ's

02/11/23 Staff Training Day – Tuesday, 12th December 2023

At CNC Building Control we are committed to ensuring our staff are trained to the highest standards and this is done in a number of ways including internal & external training courses, CPD, day release and mentoring. As part our staff training programme we have initiated ‘all staff training days’.  Our next ‘all staff training... > Read More

03/05/23 New Building Regulations/Approved Documents – Transitional Arrangements Update

There were substantial changes to the Building Regulations in June 2022 in respect of Part F (Ventilation), Part L (Conservation of Fuel & Power), new Part O (Overheating Mitigation) and new Part S (Infrastructure for Charging Electric Vehicles). Any application submitted prior to 15 June 2022, where the work does not commence before 15 June... > Read More

18/01/23 Leading the Way into 2023

Following the Grenfell tragedy and subsequent enquiry, there are reforms being introduced by the new Building Safety Regulator and regulatory changes passed by parliament.  One of these changes will see a requirement for all building control professionals to be accredited by April 2024.  The level of accreditation will correspond to the type of work they... > Read More

03/11/22 We’re Moving – Beyond the Horizon

We are delighted to announce that CNC Building Control’s Eastern Team will be relocating to The Horizon Centre, Broadland Business Park, Peachman Way, Norwich NR7 0WF from Tuesday, 30th May 2023.   Our phone number, email address and website will remain unchanged.   If you have any questions please do not hesitate to contact us. > Read More

29/04/22 Free Seminar on The 2022 Changes to Approved Documents F L O & S

At CNC Building Control  we like to invest in our clients which is why we are re-starting our seminar programme post Covid. Our next  seminar ‘Understanding the Changes to Approved Documents F L O S’  is being delivered by Lee Marsh, Managing Director, of Fusion 13 & senior members of the CNC Technical Surveying Team. ... > Read More