rafter

Heya, I want to insulate the ceiling in the bathroom, which is also the roof at the top of the building. Wondering what's the best option or if there's any special considerations for this scenario? Does there need to be a vapour barrier? (or use foil backed plasterboard?) The rafters are 100mm...

I've got a gabled roof made up of two chunky pairs of rafters, and two dozen much lighter rafters that sit on purlins resting on the larger rafter (and the stone gable-ends of the property). It looks a bit like the diagram below: 1) Green 'lightweight' rafters 2) Purple 'heavy' rafter (which...

I've got a gabled roof made up of two chunky pairs of rafters, and two dozen much lighter rafters that sit on purlins resting on the larger rafter (and the stone gable-ends of the property). It looks a bit like the diagram below: 1) Green 'lightweight' rafters 2) Purple 'heavy' rafter (which...

Hi all, I'm looking for some opinions on the cause of some wet rafters in the attic. The rafters to the rear (north facing) elevation are all wet on top and down the sides. The rafters on the front (south facing) elevation look to be okay. I'm trying to work out if the likely cause is a roof...

Hi first time posting here. I’ve started a barn conversation for myself to live in. (First time doing this and for my first home). I need to double up the Purlins. From this diagram I assume the notch is out the Purlin rather than the Truss Rafter. I’m really struggling to find a suitable/...

Hi I’m upgrading my roof rafters to accommodate a dormer conversion and I need to install 150x47 c24 timbers with a birdsmouth cut onto the wall plate. A third cut is 49.5 which the timber rafter will be 25mm to tall to the existing roof rafters of 75mm. how do I loose this height difference...

Has anyone bought/used self supporting aluminium glazing bars for conservatory/patio roof? I have investigated the wood joist route with screw down glazing bars, but the self supporting aluminium things seem tidier... if not more expensive. Just wondered if there were any alternatives to...

Hi, I will be framing my flat roof using 9 x 3 timbers.... what size/type of nails do i use to brin git all together (noggings/overlaps/framing etc) ? Thanks.

Hi I've been reading about how you can attach foil breather membrane to the underside of rafters in the loft space as a way of cooling the loft space in sunny weather, and therefore hopefully cooling the house a bit. This is known as a radiant barrier and basically works by reflecting the heat...

Hi there, I’m currently renting a mid-terrace house with some friends. The top floor consists of two attic rooms and a landing, which are all freezing. Both bedrooms have access to the eaves, and after crawling around inside, it turns out that most of it is uninsulated, apart from about 30mm of...

Hi When installing the metal restraint straps to a gable wall at 2m centres, how is the 2m spacing defined? Do you need to strap a certain distance from the start and finish of the run? So If your rafter length is 3400mm how many straps would you install? a) one in the middle... of the run...

Hi Currently having a loft conversion. After some advice regarding velux window positioning. Im planning on have 3 X 780 x 980 velux windows in one room. Is there a certain amount of space required between the rafters? As the rafters will have to be cut and then doubled up. The rafters are...

Hi all, posting first time on here as I'm in need of some advice please... Our loft has a boarded floor so that it can be walked on but there was a lot of debris falling from the roof which I believe was coming from the felt laid under the external tiles which over time has in some places...

A local builder has installed insulation into the sloping ceilings of the top floor of our house. The old ceilings have been removed, and Recticel Eurothane installed between the rafters to within 25mm or less (at the edges, less where underlay sags) of the roofing felt. There is then insulation...

I am starting the conversion of space over my double garage into habitable accommodation. The roof is constructed with attic trusses at nominally 600mm spacing and are fit to support floor loads and there are no intrusive beams etc. The room is not very large so does not require large windows...

Hi all, I've noticed white marks on the roof rafters at home, from googling I think it might be white spot mould, but would appreciate an opinion or two from people who know what they are talking about! I've attached a few photos... any thoughts on what this is? The patches don't stick out...

As if water rot and roof rafters wasn't enough, stucco is also involved. This may be beyond my skill level to repair. What's the best way to take care of this? These particular rafters don't have attic space, but are the rafters underneath a section of flat roof with roll roofing. In some cases...

Hi there, I have been a regular visitor here but have signed up as I need a bit of advice about my parents roof which was replaced three years ago. There were several leaks in the roof and two major ones which had been left far too long resulting in rotten rafters around both chimneys to the...

Attached are several pictures of two Velux windows installed in June and then yesterday changed to follow the recommendation of Building Control for a Regularisation Application. I know nothing and am posting to see if anyone has any opinion about the structure in the picture. In particular...