The lintel is then cut to size and laid in place to check for size. It will later be fixed to the top of the stakes on either side of the window but is first needed to construct the the roof frame.
Levels are then checked and the form work is then replaced ready for work on the roof structure to commence.
Reclaimed timber floor boards were used to create roof framing. The boards were cut to form an angle that allowed water to flow off the roof preventing ponding.
Discarded off cuts of roof sheeting were spaced out and over lapped to equal the width and align with the ends of the wall. Centers of the roof frame were then calculated to align with the flat areas of the sheeting. These points were then marked.
The angled timber roof struts are then screwed into the lintel. They are spaced at the centers that were calculated on the roof sheeting so alignment can be achieved.
The lintel, now with roof framing, is then ready to be fixed to the top of the stakes on either side of the window. To prevent leakage and create a tight seal, a scrap off cut of timber was fixed between the lintel and the top of the window. This also gave the window top-end structural support to restrict movement under load.
The roof sheeting is then placed over the roof struts to check for alignment.
The mud mixture is then laid around the roof struts on top of the lintel. A thin layer is first placed and compressed and then the bottles are placed on this layer. This creates a base for the bottle and restricts movement.
Once the base layer is compacted, one bottle is placed between each strut. After the bottles are in position mud is then laid over and around the bottles compacted tightly insuring there are no air pockets which will weaken the wall and reduce water proofing.
Side form work boards are temporarily removed to check the positioning of the bottles and their visibility between the mud. The boards are then replaced and the wall is left to cure.
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