Recent Projects

Donaghadee, Co Down


This house was built in the North Down town of Donaghadee along the coast at the start of 2016.

The timber frame aspect of the build took approximately 3 months to construct and in order to achieve the passive standards required we used Dupont TYVEK membranes and associated Airtightness products.

We also installed a passive standard heat recovery system which is up to 85% efficient and uses the highest grade F7 pollen & allergen filters (inlet and outlet). Great care and attention was taken when installing the airtight system to ensure an airtightness value of 0.52.5 n50 Air Changes per Hour (1/h) was achieved which is well below the passive standard value of 0.6.

The clients opted for triple glazed PVC future proof windows which achieves a U-value of 0.8.

Build Spec

Build Up and U Values: -

External Walls (U Value 0.1):

-        220mm Stud filled with 220m PIR

-       TYVEK airguard reflective membrane

-       50mm PIR

-       Counter batten

-       12.5mm Plasterboard

 

Sloped Ceilings (U Value 0.1)

-       225mm PIR between rafters