No idea what this roof structure is called, but it doesn't have traditional trusses; instead, the roof is supported by the outer walls and three longitudinal rafters (70 x 130mm) that are relieved by the gable walls and in the middle by both the chimney and something that can best be described as a plank. I guess there was once a wall under the "plank," because it sagged down several centimeters.
Now I have propped up 2 of the rafters. I want to replace the "plank" with something more supportive, but I'm unsure about the dimensions. Are 2 screw-glued 45 x 95mm placed on edge, resting partly on the chimney and partly on a new post against the wall enough?
Obviously, the house is still standing since it was built in '57, and it used to have tiles, but now it has metal. I want to insulate against the roof, so I want to be sure it can handle it.
Now I have propped up 2 of the rafters. I want to replace the "plank" with something more supportive, but I'm unsure about the dimensions. Are 2 screw-glued 45 x 95mm placed on edge, resting partly on the chimney and partly on a new post against the wall enough?
Obviously, the house is still standing since it was built in '57, and it used to have tiles, but now it has metal. I want to insulate against the roof, so I want to be sure it can handle it.
