Recent content by jackofairbrother

Cheers. I was going to put the render bell cast bead on the STS boards in a horizontal line with the top of the lead flashing so it can be accessed. Is it still 150mm upstands on sides and front of dormers?

Hi, it will be a cold roof above but I’m talking about the dormer walls which will have a 25mm battened cavity made off the timber osb frame

Morning people, Can’t see to find the recommend order to finish my dormer frame to get it water tight So will have 12mm osb on frame Breathable membrane 25mm batten for cavity 12mm render carrier board 10mm silicone render I was going to lap the existing roof membrane up the dormer walls then...

Oh okay. Thank you. Been impressed by your previous jobs you’ve posted

50mm clearance above insulation. vented soffits on both sides of house and all sides on dormer. On the lead detail mentioned above. The lead dresses on top of Osb and goes over the GRP? Wouldn’t imagine the other way round as it wouldn’t adhere to lead?

No it’s going to be a cold deck with insulation between and underneath

Thanks. So you dress the lead over the top of the Osb. Would you then go back over the lead with the roof finish ie GRP?

Hi all, Just framed a small flat roof dormer. Would appreciate a bit more info on the waterproofing details between the new grp/rubber roof and tiled roof. I have attached a picture below of the area. Roof is set lower than the ridge. So will have lay board going up and under the ridge. I...

Hi, Is there a way for the return wall fascia boards to run level at the top and hide the fall/pitch of roof on flat roof extension? It’s a warm roof, finished in GRP and I have soffits extending on 3 sides with furrings giving a fall to the front in to a box gutter. I’ve seen a few different...

Cheers pal

Hi, Carrying out a flat roof extension with warm deck. Just wondering what’s the best way to go about the side walls with the noggins. I’m currently doing PIR insulation in cavity tied back to thermalite block. Would you stop the Internal block height at the usual wall plate height and...

Hi, Carrying out a flat roof extension with warm deck. Just wondering what’s the best way to go about the side walls with the noggins. I’m currently doing PIR insulation in cavity tied back to thermalite block. Would you stop the Internal block height at the usual wall plate height and...

Hi, just wondering what would be better. I want to reroute the hot water tank in the loft when it gets converted. This part will be studded off the load bearing wall but want the eaves to store the tank etc. Blue line has a load bearing wall beneath Red line- assumed doubled up 8x2 with...

Thanks. Do you know if you need an expansion gap in screed gong through door thresholds with underfloor heating?

Hi, I will be putting in a new ground bearing concrete floor in the existing house but due to footings with tree proximity, the extension will have block & beam. Floor make up will be concrete floor then insulation to match the height of block and beam insulation, finished with screed for UFH...