Browse Forums Owner Builder Forum 1 Apr 26, 2010 12:54 pm Hi This is the first time i have posted and also the first time involved in any building project. We have purchase a half finshed stone house and are doing some designs for extensions and roff etc. The house is at the stage of the stone walls finished with window and door frames in. I am trying to design the roof and an attic to get some prices to finish. Sooo i was wondering if some one could answer some questions i have. 1. i wanted to have an attic at one end of the house approx 2.1m h x 3m W x 3.7m L. what size floor joists or rafters do i need? 2. what pitch will i need the roof to be designed. 3. Is this plausable or should i reduce the size? Re: Attic and roof design 2Apr 28, 2010 9:46 pm Hi kimfyfe, its difficult to give exact sizes without knowing the full design criteria of the attic in relation to loads,spans etc. If it were to be a clear span of 3m from bearing to bearing then a 240x45 LVL would be sufficient for the joist, but I'm not recommending that without the adequate information. Were you after the whole room to be 2.1 high or just at the apex and then it would rake down towards the side walls? The roof pitch will need to be 25-35 degrees depending on what heights need to be achieved. The size of the attic is certainly plausible, consideration needs to be given to what supports the ridge beam and where that load is transferred to. Depending on the design though you may be able to get the attic trussed which can simplify the job considerably. ideal house depends on the site and location as much as internal floor plan....what is the distance from the house to all four boundaries, where is north, describe your… 3 15142 This certainly doesn't look good. I would be engaging with an independent inspector to have a look at this. As for the unscheduled site visits, most builders are quite… 1 28290 Hey. Head to a metal and decide on which profile you will use first. Profiles with larger corrugations can greatly change the appearance of the color in different… 0 3381 |