The brief for this project in the summer of 2006 was to replace the ageing and decrepit roof on this truly ancient barn with a structure which allowed full room-space upstairs for the dwelling place it will become.
We overcame this using the interrupted tie beam arrangement you see above as a simple (and stronger) alternative to the traditional devon jointed cruck
The barn had a hip at one end which we had to retain for the listed buildings people, although it meant less useable interior space.
As a result we decided to use through-purlins as seen above so we could keep the hip rafters in the correct plane. The use of dragon and cross ties reinforced the strength of the weak cob walls and provided an interesting and unusual frame detail.
We got some lovely conservation rooflights , again specified for listed buildings, beautifully made in painted steel which sit flush to the finished roof; in this case a random diminishing pennine slate.
The common rafters were local Douglas Fir bridle-jointed at the apex and sawn by me with the Forestor Tom Sawyer
Purlin details from without and within.
This picture shows the random diminishing slates off to good effect. To make use of the long roof and increase the light on both floors of the building, Martin went for these long glazed panels in the roof. Whilst listed buildings would not allow him to create any new wall openings, this large glass section was acceptable.
As you can see, the building is still not finished, although it is shaping up very well. Watch this space. . . . .