DIY doctor - wall insulation
Vložit
- čas přidán 14. 08. 2019
- When the house was built back in 1936 they didn't bother with insulating the walls because people were tougher back then. To fix it I could tear off the wallboard, insulate, and then reline; but there must be an easier way...
- Jak na to + styl
This is great to see in action. Considering the same technique for my old house but struggled to find any guides for it. Wondered if it even worked tbh. Many thanks.
I fxxxing love it.!! So well done!!
Thanks, I was just looking for something like this. A side note that "cellulose insulation" can be used which appears to be better and is recyclable.
The major concern with cellulose is that it absorbs moisture. A leak through the exterior cladding could soak into the cellulose and be held against the timber framing leading to rot.
@@MichaelChristopherSmith good point. Quality walls with cavity would be a must here!
Everything I read indicates polystyrene ignites at relatively low temperature and burns furiously. Sounds like even a minor fire can turn homeowners into crispy critters in no time flat.
The auto-ignition temperature of polystyrene is 226°C (439°F). Source: www.tayloredge.com/reference/Science/ignition.html
2:14 I think you woke my neighbors lol!
I need more info on the super injector 3000
Hi Mike as the beads are sucked through the blower did you have any issues not having a bag ie how did you get round not using a bag
I don't recall any problems with the beads going through the blower. Though I think we had to control the flow to prevent it from choking up. Not sure what you mean regarding the bag. Beads were being sucked out of a sack, so it helps to two people: 1 holding the outlet hose, the other holding the inlet hose to control the flowrate of beads.
Had any issues yet?
Does anyone know where I can order those graphite eps beads as I could not find a place where you can buy just beads.
Thanks for the vid. where can i buy these beads from.
I bought the beads from www.polypalace.com/
Look for a recycler in your area
If ur on benefit you can get it done for free of charge the grants are available from the government .. reply me I'll help u
this seems like such a good idea, much better than liquid insulation which can really do damage. how flame retardant are the beads?
I'll try to conduct a flame test and post the results
This comparison test is interesting but not realistic czcams.com/video/CdItsso3ur0/video.html
Fire needs fuel and oxygen. The ignition and propagation behaviour within an enclosed wall cavity will be completely different to that test.
Is there a fire risk with the beads?
Well the beads are inside the timber wall cavity, protected by a layer of plasterboard. If a fire gets into the wall cavity, you've got a problem regardless of the beads.
What is the product called?
Polystyrene beads?
Expanded Polystyrene Beads, EPS, in this case Coated EPS. Epsilon and Masterwall are 2 trade names, available in bead, flat sheet and board. EPS is most commonly seen in Bean Bags and Packing Peanuts (uncoated).
shop vac will work fine?
Maybe. Give it a try and post the results .
@@MichaelChristopherSmith Did the shop vac work? I want to use my shop vac as well to insulate a mezzanine floor with these EPS pearls.
I dont have a leaf blower what tool can i use to blow the insulation?
A vacuum cleaner: czcams.com/video/GK0-UCWwtE0/video.html
Or a pneumatic blower: czcams.com/video/Z5BIzGa-EAo/video.html
Will insulation spray foam work in this situation? I have exactly the same situation
There not beads....they look like recycled broken down polystyrene boards....not airtight at all....heat will still escape fast through the gaps between the lumps/beads.Your thermal imaging camera looked like it had a dry lining system with bonding compound blobs.
What are beads? Small round things.
How will "heat escape fast" through tiny gaps? I'd like to see your calculation. Insulation doesn't need to be airtight otherwise fibreglass batts wouldn't work either.
The 'dry lining system' is horsehair plasterboard affixed with nails circa 1936.
Cavity walls must NOT be bridged with insulation.
You refer to masonry cavity wall construction. The technique in the video isn't applied to a masonry 'cavity wall' but to a timber frame wall.
@@MichaelChristopherSmith same thing
@@CCCP16 Clearly not the same thing. Timber-framed construction for walls uses studs, to which a lightweight exterior cladding can be directly attached such as timber weatherboards. In this case there is no masonry, no brickwork, no ties, no mortar and no ventilated 'cavity'.
In most jurisdictions for new builds it is mandatory to install insulation in the stud bays between studs.
The video demonstrates injecting insulation into the stud bays, not into a drainage cavity.
This video is VERY WRONG. Ask N.V.Q. BRICKWORK teachers !
What brickwork? No brickwork here sunshine.
@@MichaelChristopherSmith same process