Services
 Air
Tightness Testing
The Air Tightness Test measures the uncontrolled flow of
air from a building.
Each new development requires one unit of each type to be
tested (if using robust details)
If robust details are not used then a percentage of the unit
types require testing depending
on the size of the development.
Each unit tested must achieve a standard of 10.0 m3/(h.m2)
@ 50pa or the Design Air
Permeability calculated in the SAP Energy Rating (whichever
is the lower)
Our testers are accredited with the British Institute of
Non-Destructive Testing
Conducting tests to the ATTMA Technical Standard 1
Using approved equipment calibrated at a certified UKAS laboratory
For further details please phone 01892 821635 or complete
the enquiry form
 SAP
Energy Ratings
The SAP (Standard Assessment Procedure) energy rating, calculates
the Carbon Dioxide Emission Rate of a dwelling (DER).
It is a Government defined procedure in accordance with
Part L1A
of the Building Regulations amendments 2006.
All new residential dwellings require a SAP energy rating.
Each new dwelling assessed must achieve a Dwelling Carbon
Dioxide Emission Rate of
equal to or less than its Target Carbon Dioxide Emission Rate.
Our SAP assessors are accredited to calculate energy ratings
using Elmhurst Energy
Design System SAP 2005.
For further details please phone 01892 821635 or complete
the enquiry form
 SBEM
Assets Rating
SBEM (Simplified Building Energy Model) calculates the energy
performance of buildings, other than dwellings.
It is a Government defined procedure in accordance with
Part L2A
of the Building Regulations amendments 2006.
All new Commercial, Industrial and Retail buildings require
a SBEM asset rating
For further details please phone 01892 821635 or complete
the enquiry form
 Area
Weighted U Value
This method of calculation can be used for extensions to
existing dwellings.
It is a government defined procedure in accordance with part
L2B of the building regulations amendments 2006.
A way of complying would be to show that the average U Value
of the proposed extension is no greater than that of an extension
of the same size and shape that complies with the U Value
standards referred to in paragraph 14 and the opening area
in paragraph 15 of part L1B of the Building Regulations.
For further details please phone 01892 821635 or complete
the enquiry form
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