DAPPH
as dyslexik as I'm daft
- Messages
- 7,491
- Location
- Near to Cross Hands Llanelli SouthWales GB
Most of my roof void has been given the very latest super efficient insulation Nov 2021 where the solar control panel is at one end of the space they people doing the insulation set a walk way up on the B&Q stand offs and used their standard width treated green over lapping flooring boards . The boards are about an inch above the new insulation so it's not being compressed .I have just done the same job here, looked at all the options - ended up going with the loft legs from wickes.
The loft access position made it difficult to get any appreciable lengths of timber up into the space (6ft max) so it would have been tedious to put counter battens in.
I must admit i thought that they would be rubbish but am actually really impressed with them, put some additional supports in a few places to act as braces where the edges of the loft boards would have been unsupported and it has worked out really well.
Overall we noticed steady reductions in our heating oil usage the roof void replacement for 17 yr old stuff has certainly helped .
When we first came here we were using three 1200 litre tanks of oil a year . Filled in all the 17 recessed halogen bulb holder holes and put in the very latest GU10 led lights inside the rooms , got cavity wall & fibreglass insulation about 13 years ago , dropping the oil consumed to 2 & a bit tanks worth over two years . Got tripple glazing with trickle vents new tripple glazed front door with no letter plate cut in it 18 months ago & the new replacement roof void insulation Nov last year . At the end of Nov we filled the tank with 1100 litres of heating oil .... making it that we have used less than one 1200 tank of oil in 12 months & a few days .
We have a trickle vent open in a back bed roo & one in the lounge opened abut 1 mm ..it's enough to keep the air fresh .
We put two timer controlled extractor fans connected to the Led light cluster in the wet room roof & an aluminium piped kitchen hob extractor in . ( next project is two new wet room fans & their digital voltage light controllers .. piped from an easy get to point fixed to the roof trusses , close to the trap door . So if one dies it's going to be an easy replacement ( using 3d printed pipe adaptors perhaps ? ) .
The is no mouldy cold spots in corners of rooms or the wet room any more. We've been able to turn the hallway sited central j=heating thermostat down to just below 18 oC 1.6 mtr of the floor , air temp in the hall at that height on a digital thermometer +- 1.5 % reads 21 oC .
If we close the lounge door the 50 inch LED TV alone is good enough to hold the lounge temp to 23 oC at a height of 1.1 mtr from the floor .
All the rooms have TRV.s save for the excess heat dump rad in the hall way which rarely ever gets warm let alone hot .