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I need to change many of the original floor joists due to rot. Typically joists are wrapped in DPM using stable gun for example. I’m wandering if there’s a better way such as foil tape. Any thoughts would be most welcome.

Hey folks, Im about to buy a victorian terrace house with a gable to gable roof. The previous owner decided to remove the perlins and struts and make a non BC approved loft room! The Ashlar walls are supported by two 8x2 timer beams which have been calculated to be about a quarter of the...

hi there, So my CH is an Vented system. I want to install UFH into a new extension. Rather than plumbing into existiting secondary flow and return for rads, I’m told the best way is to create new flow and return control with its own motorised valve. To avoid the pumped return spilling into the...

Hi all, I’m in a quandary. My extension is 340mm from excavated ground to finished floor level. I will be installing underfloor heating so the order of materials from bottom up is as follows; Hardcore Sandbinding DPM Concrete slab Sand binding to level imperfections Rigid insulation Underfloor...

hi there, I'm putting 50mm of kingspan tp10 between the 8x2 rafters, 18mm ply ontop of the rafters then 100mm of kingspan tr27 on top of that. Confused as to where the Vapour control barrier should go. I guess on the underside of the tp10 between the joists. The only type of VPC that would...

hi all, Apart from the obvious difference, has anyone had any experience of fixing wall cabinets to both of these materials and does the 7.3n offer more strength in this regard. If not I'll save my money and go for the 3.6n's

Hi there, I'm going to put a bio ethanol burner inset into a granite plate which will rest on about three course of brickwork raising the floor of the builders opening of my fire place. The problem is that the burner requires 230mm of depth and the depth of the fire place is 360mm. The only...

Hello, I want to pour a path and have previously used 12mm ply with timber steaks used every 30cm. Due to cost I want to know if anyone has used a cheaper material like OSB? Love to hear

The usually open valve fitted to the bypass reduces return temperatures and means that well balances radiators will contribute to a return with a 20 degree diff from the flow. This optimises condensing which saves money, and it stops the boiler from cycling as often. Radiators also get...

Hi all, I have clamped a pipe thermometer to the common flow immediately emerging from the boiler. With a return temperature of 40 I still only get temperatures of 60 max on the flow with the boiler pemeprature set to max. According to WBosch a 15ri max temp ought to be 82. I bought...

Hi guys I previously thought that the balancing valve on the flow side of the HW cylinder was intended to ensure a shared flow the the HW and CH systems when they are both active, however, it occurred to me that the flow temperature through the W cylinder will affect the return temperature and...

I've got to cut some rolls of coconut matting along the length and neet to protect the cut edges from freying (hope the spellings okay). Due to cost of sisal or linen binding tape and effort requires to hand stitch, I though that pumping the edges with clear silicone might be a fast and...

Hello, I' thinking of connecting a usually open motorised valve to my bypass. The idea is to stop the hot flow passing into the return while the central heating system is on which would affect the modulating of the boiler and lower the performance of the HW system. Am I a genius or a...

Here's my dilema, I have bolted together two 6x2 pine timbers to essentially make 1 6x4 joist. The precise width is 94mm combined. I need to secure this joist perpendicular to the house on an external wall. For this, so far, I have bought a joist hanger which can be secured to the external...

Okay so I promise the answer tothis thread isn't as simple as bleading the rads! Having balanced my rads and installed a auto pump which delivers a constant pressure on the head, I now get my bedroom rad that gurgles. There is definately no air in the system and the noise appears to be...

Just called worcester bosch technical support for advice on a weather compensator for my greenstar 24 Ri. They advised me that they don't do anything of that sort for my boiler!!!! I don't know much about these things so wondered if someone (Hailsham would be perfect) could advise me on them...

So, i balanced my rads today so all rad returns are returning the same temperature which is 20 degrees below the primary flow. Before anyone says it should be 11 or 12 degrees, my worcester bosch boiler specifies that optimum performance is achienved when there is a 20 degree difference between...

I just bought a rolson infrared thermometer to measure my Primary flow and return as well as both ends of the rads to optimise my system. Problem is it is giving me duff readings. The instructions say that this can happen if the surfaces are either transluscend or shiny. The remedy is...

I want to run an h beam the entire length of the house and dont want it visible from the ground floor. Ive seen on tv people using brackets that hang from the steel and hold each timber which would be trimmed to right length. Can anyone tell me the erminology and where i can get the things...

After learning all kinds of wonderful things on this forum i have opted for a Modulating pump combined with a Taconova inline flow setter bypass rather than a fixed speed pump with a auto bypass valve. My dilema is whether to run the bypass valve throught the hot water cylinder thus meaning...