Jimbo37
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Hi BuildHub'rs I'm in the latter stages of a 2 story build with a joist and osb first floor. I have installed hushpanel 28 floating soundproof on top of osb, which seems very good. Problem is, my flue comes up internally from main living space through corner of master bedroom through 400x400mm hole with heat ventillation grill, bypassing the soundproof. All is not lost, as I can box in flue in upper floor. What product/ board should I use for good acoustic performance, please?
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This is the best I have. Another row of blocks on the inside and alu window with alu cill.
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Thanks @Mr Punter - should I have expected the DPC to have prevented my inner cills getting, before the mastic was increased?
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Hi Self Builders I need a steer, please I have a new built masonry house, with a cavity and standard DPC window details. I had wet patches low down on the internal reveal - a wet quadrant from junction of window cill and window frame. The builder resolved it with additional mastic around the frame on the outside, and it seems dry now. My questions are - shouldn't the DPC have directed the wet out, before it got to inner leaf? - is mastic in this case a robust solution, or will it need replaced, maybe every 5 years?
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@ADLIan Just passed this to my architect, as I was concerned that my insulated upstands were not insulated at the top. She didnt understand the reasoning (this edge of the insulation is facing up/cold) - do you have any references or further comment you can give. TIA
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Oh dear! Can the flue squeeze in here?
Jimbo37 replied to Jimbo37's topic in Stoves, Fires & Fireplaces
Mmh, the flue guy installed this using lead flashing and loosely packed insulation wool, but there is condensation falling from bottom of lead. Anyone got a good understanding of how the detail should be (warm roof, insulated box) - I'm guessing solid insulation with vapour control, maybe? Also, that collar is siliconed - is that OK? Im a tiny bit nervous that the lead does not stretch down far enough. Ooh, I have to stop looking!!
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@Andehh see pics above, and this one which was taken for unrelated issue (unprotected timbers) but shows head stepped dpc
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Ive spent a bit of time studying these today 1 - I noticed that there are weep hole covers missing, could that be the source? 2 - I see cills run under frame from outside to inside, could water be getting blown back through? 3 - Mastic is good, but not perfect everywhere (could this be the cause, or is this really essential to weather proofing)
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I'll look for pics, but it looked right. Step dpc in head, and strip of dpc from inner leaf down outer leg of frames Edit: see 1 pic up. Unfortunately I don't have much better pic
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Not great pic, but shows some detail. I'll look for more
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There is a 50mm runoff on patio, does that deal with issue soakaway would deal with? No render stop. The patch you see is a problem with paint, as it rained before it dried
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Oh dear, Im worried - please put my mind at ease I have a 'regular' block and s&c render house, with a flat roof in the final stages of build. I finally had the windows sealed (rubber between frame and glass and the mastic between the s&c and frame) a few days ago. Todays rain has shown a problem on 14 of the 18 door/window openings - a wet patch at the bottom of the inner reveal (always on one side, just) - see pic. (There is S&C behind the cladding). I have noticed this previously, but the builder felt it was because the rubber on the windows was missing - obvs, Ill speak with him in the morning. What is most likely to be going on?
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This is what I had - after comments, advice and suggestions hare and a chat with my architect, I have allowed it to pass - and keeping a close eye on it for (no) cracks etc. Thanks @all
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Agreed @saveasteading, but I'm unsure if I'll follow this through as my main concern is the quality of what I have and the general consensus is that its fine. To go for cost rebate, I'd have to be 100% sure of depths in middle of floor, which presumably would call for a couple of drill holes, which is a taking from quality and would rankle the builder if I'm wrong - on balance, I think it's best to move on.
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Looks very good
