Comer Construction​ Services
Comer Construction​ Services
Our Blog:
Life On Site.
Our Blog:
Life On Site.
24th March 2021
24th March 2021
We installed OSB3 sheets (9mm) on top of the joists, installed 130mm of insulation on top of that, more OSB3 on top of that and then the firring pieces to give the fall away from the house. The joists were installed with a fall from right to left too. On top of the firrings is the last layer of OSB3 and this will be covered with EPDM rubber roofing on a day when it is not raining!
NB: We prefer to fit 3 layers of OSB to prevent compression of the insulation into the joists and of the firrings inrto the top of the insulation. The roof could potentially have a covering of snow which adds quite a weight. The insulation can stand weight well as long as the weight is distributed evenly, any point loading and it is likely to compress, the OSB prevents this.
There's a big hole in the roof
Roof joists are in place with the opening for the lantern. Doubled up 7x2s with a flitch beam consisting of 3 7x2s with 2 steel plates between, bolted together.
Walls!
Latest from the blog - 24th February
Latest from the blog - 24th February
So after the snow and freezing temperatures, came the rain. Life on site went a bit quiet but we are back and the walls are going up.
Our Latest Blog Entry
Our Latest Blog Entry
12th February 2021