Search results for query: spray foam insulation

Dare I say it, spray foam insulation?

Thanks for the idea with the hose. Would be a good way to see where the water is coming from. I'll replace the old insulation with the proper stuff.

The brickwork below the window looks decidedly wet. Where is the frame draining to? Loft insulation can get wet, but the fibreglass CWI in my house is treated, I think with silicone wax, and repels water, you can't wet it. I think yours has the wrong stuff You could perhaps poke closed-cell...

@noseall I have a load of windows and a double door to close cavity on and am going to use the celotex DPC method but I'm confused as to how the sandwiching should work exactly. So DPC on outer membrane (100mm?) wrapped around celotex with foil facing internal/external bricks. Should the DPC be...

...The airbrick is ducted through to the old part of the house. I do wonder how necessary it is as there are two on the rear. Heavy rain does result in puddles next to that wall and it gets hit by the wind & rain. I've not heard of silicone injection, but it sounds on par with spray foam...

I've had another look and I could screw in some large screws about 200mm down and set 100mm insulation board (spray foam around the edge to seal it in and then remove the concrete from the lid and put a foam layer there to be level with the exist floor then lay some soft lino over. I'm hoping...

Assuming you get cheaper off-peak electric, worth using it overnight. If you haven't worked out what the various switches do you could leave everything off all day and switch it on before going to bed. But if the HW cylinder is well insulated (preferably sprayed-on foam) it's not going to cost a...

Hi there, We moved into our new house last winter and noticed water on the ceiling of a small extension to our kitchen. At first, we thought the roof was leaking, so we replaced the felt roof. However, we now realize it's due to condensation. I want to fix this before winter, but I'm unsure of...

Have you bricked-up between the joists? For future reference - cavities are a great place to fit & forget the insulation. (y)

I am building an solid brick extension and have a warm flat roof . The joists overhangs a bit. Then there is a fascia board. The plan was to put ewi all the way up into the fascia boards in between the joists ( in hindsight I should have built it differently to avoid joists and cold bridge -...

Adequate ventilation of buildings is important Roof spaces need adequate ventilation Hence why this spray foam insulation is causing issues and costing some home owners thousands to put right

The doors finally went in today. Had a bit of a nightmare as the builder refused to fit them as they are steel, even though he'd been told I was ordering steel security doors. Took a while to find someone who was willing to fit doors he hadn't personally supplied, but all sorted now. Only issue...

The frame is actually connected directly on to the wall. It was just unfortunate that the foam board does not fully fit the depth. Should I just place wool insulation behind the board to pad it all out, and then foam spray any gaps around the to make it air tight?

Considering the options for my 10 X 12 shed foundation: the builder offers pressure-treated wood runners, and I'm torn between placing them directly on the concrete or raising the shed slightly. Both options involve pressure-treated wood. The floor will be insulated with spray foam and have a...

I might put in an offer for a house tomorrow but it has a huge basement, which is intimidating as i know nothing about them. Is it an asset or a curse? My wife is convinced it would suck all the heat out of the house. Anyways, a bit of research and with doing the prep work DIY before getting...

Now that is a good idea, saves the need to try and spry foam in any gaps in the PIR - even with a foam gun imagine laying on your back underneath with foam dripping in your face. Or from the top a couple of nails sticking out - lay the best you can cut it PIR on them and then rock wool on top of...

I can see that the tank is insulated with 35mm thickness of spray foam insulation. This really isn't all that thick, and adding more insulation over it with definitely improve heat retention.

It depends. Some wool is rated 0.033, some is 0.044 (Knauf 44), rigid is typically 0.022. Those numbers represent how good at conducting heat they are, higher numbers conduct more heat so yes, 200mm of 0.044 is notionally as good at keeping the house warm as 100mm of 0.022. Wool is easier to...

There is sprayed in cavity wall insulation in the walls from around 2000 I believe. Found it to be there within the cavity when knocking back a downstairs window. What could be used to stick the wool insulation in place where I need it?

Many thanks robinbanks and sorry, cdbe, for glossing over your post. Truth is I have never looked into rigid insulation - will do that asap. I take it 100mm of the rigid stuff is equivalent to 200mm (or more?) of the popular, rolled out wool type stuff? If it is, and there's no requirement for...