Specifications for new homes which fall short of energy performance targets in the Dwelling Energy Assessment Procedure software may nonetheless comply with Part L of
the Irish Building Regulations, the Sustainable Energy Authority of Ireland has said.
When accounting for thermal bridging in a Deap calculation, we have four options to choose from in accordance with TGD Part L (2011) of
the Irish Building Regulations, which are as follows:
The directive makes no allowances for derogations or the kinds of transitional arrangements that accompany
Irish building regulations changes.
It's three times lower than the passive house threshold, and no less than thirty - five times tighter than the backstop of 7 m3 / hr / m2 under
Irish building regulation, making a mockery of the state's targets.
Not exact matches
Although
Irish U-Values (below) were more onerous than the UK
regulations (below), critically they were not mandatory and not applicable to existing
buildings.
Homes failed to meet energy and
building regulations,
Irish Times, 29 November 2011 6.
These are the only two known studies that have looked at whether
Irish housing complies with any parts of
building regulations, according to the Department of Environment.
Under the various UK
regulations (both English and Welsh Part L1a, Scottish Section 6, and Northern
Irish Part F) where a
building is constructed in accordance with the Accredited Construction Details (which differ in Scotland) the psi - values for each junction are taken from table K1 of the Sap document.
While passive houses are designed to meet maximum average temperature targets, there are no such requirements in
Irish or UK
building regulations — meaning many highly insulated new homes are being
built without regard to whether orientation, form, layout and / or lack of shading will run the risk of causing unacceptably high or low internal temperatures.