Samuel Studios - construction thread

Funky Animal · **Posted:** Tue Oct 12, 2010 6:31 pm

Soundman2020 wrote:

There seems to be some errors in your materials list. It says:

Quote:

insulation 140kg/m3

That is WAY too dense! Depending on what it is (fiberglass or mineral wool), you want something in the range of around 30 to 50 kg/m3. If you go to densities much higher than that you start to loose effectiveness for low frequencies. Yours is about 300% to 400% too dense. You should fix that.

Also, it says:

Quote:

12.5MM Gypsum | 15MM MDF | 12.5MM Gypsum

That gypsum is too thin. Too flexible, resonant frequency too high, etc. Use only 5/8" (16mm).

Also, the MDF is fine if you really want it, but it would probably be better to have it up against the studs, then put your drywall on top of that. There are two reasons why you might want MDF there: one is to give you a nailing surface across the entire wall instead of just on the studs, and the other is to give you better structural integrity (sheer). Both of those reasons imply that the wood should be on the studs, not separated from them by a sheet of drywall.

Finally, I'm curious about the orientation of your ceiling joists / rafters / whatever: they seem to be running the wrong way! They seem to be spanning the length of the building from end to end, rather than across the width, from ridge board to top plate, which is they way I've always seen it done. I'm not sure if it is OK to do it that way. Brien can probably comment on that, but for some reason it just doesn't look right to me.

- Stuart -

Hi Stuart,
Thanks for your input.

Can I still use the 140 kg/m3 on the outer walls? I bought a whole bunch, simply because I was able to buy it very cheap. 3.5 euro per m2, instead of 8 euro per m2. I have no problem buying less densed material for the inner walls tho. Since I still will be able to sell some of the dense material to a friend that allready asked me if I have something left over.

Gypsum, I'll try to find this. Allready called to 4 construction stores telling me they're not able to deliver it. I still have to try and maybe go to one in Germany (I life close to the border).

Roof contruction: I know exactly what you mean, that was my first setup. This is a setup a constructional engineer came with to me because of saving height. This helps my roof to be 16 cm higher than having that from side to middle.

Today my father in law is painting the beams and tomorrow we will start putting it together with me, my father and the fater in law..so we're making good progress!

Cheerio

Funky Animal · **Posted:** Sun Oct 17, 2010 5:59 am

Update .. just being busy. Still need to set the front poles correctly and a lot of other stuff....
Beginning is there tho..

Ro · **Posted:** Fri Oct 22, 2010 1:23 am

What I can't understand is that in your initial drawings you have a brickwall shed, and you end up using wood.. what changed? (okay, I haven't read ALL text. maybe I missed something there)

:mrgreen:

Funky Animal · **Posted:** Sat Oct 23, 2010 5:00 am

Ro wrote:

What I can't understand is that in your initial drawings you have a brickwall shed, and you end up using wood.. what changed? (okay, I haven't read ALL text. maybe I missed something there)

:mrgreen:

Building permits..building permits...
They didn't want to give me any permit for my initial build.
So I now did something is along the lines of permit stuff.

Ro · **Posted:** Thu Nov 04, 2010 10:22 pm

bummer...

Funky Animal · **Posted:** Sat Nov 06, 2010 8:09 am

Ro wrote:

bummer...

Yep, that's how it felt at first. Allready shifted my mindset now. I still think I can create something beautiful, it probally only needs a bit more effort put into it, since the starting point is not a preferable one.

Allready made more progress since then, roof is on + shingles, electricity has been dealt with, network cables have been layed out, first delivery of gypsum & wood is in, now I'm busy caulking...hate that job, Hope to get some more pics up in the next few days..

Funky Animal · **Posted:** Wed Nov 10, 2010 3:44 am

Hopefully someone can help me. I have all the seals and all the gaps caulked.

I want to add an extra layer of gypsum to agains the wooden outside wall. Only some people are saying I shouldn't do it, other say, shouldn't be a problem.

So just to know I want:
OUTSIDE WALL (44MM PINE) | 16MM GYPSUM | 10CM INSULATION

Anyhow then some say I should:
OUTSIDE WALL | INSULATION | GYPSUM

Anybody got any idea?
I've had the first option as initial plan!

TomVan · **Posted:** Wed Nov 10, 2010 4:21 am

I want to add an extra layer of gypsum to agains the wooden outside wall. Only some people are saying I shouldn't do it, other say, shouldn't be a problem.

So just to know I want:
OUTSIDE WALL (44MM PINE) | 16MM GYPSUM | 10CM INSULATION

Use Chip board/OSB or Plywood instead of the Gypsum. But make sure you are sealed well from the outside elements.
Keep your first mass layer this way
OUTSIDE WALL (44MM PINE) | 16MM CHIP/OSB or PLYWOOD | INSULATION

Peace
Tom

Funky Animal · **Posted:** Wed Nov 10, 2010 11:35 am

Thanks tom,
Just ordered 18mm osb with an special layer against moist/humidity. So that will be the first layer to go now.. Thanks for the input, osb makes more sense indeed.. Allready had the gypsum ready but i guess ill be saving that for later then..

Funky Animal · **Posted:** Mon Nov 15, 2010 10:52 pm

Got the OSB delivered, now busy with the door, that one is almost finished. Still looking for proper rubber seals.

I just need some advice!
To add my layer of insulation again my OSB I have 2 options:

OPTION 1:
Framing the whole wall & ceiling, then adding the insulation in the framing and use wire to keep it on it's place.

OPTION 2:
Buy these stickpens, I have to use superglue to attach them to my OSB board

Option 1 is more work and more $$$
Option 2 is easier and less $$$

But I actually want to go for the best solution..

I it was actually easy to add some quick shots... more pics soon.

TomVan · **Posted:** Tue Nov 16, 2010 5:33 am

Option 2 for sure.

Peace
Tom

Funky Animal · **Posted:** Fri Jan 14, 2011 3:37 am

NEED HELP!!!

So I've got the first layer almost finished.
Which is outside wall | osb | insulation

There will be an gap between this wall and the seperated room inside.
All the contractors that are visiting me are saying I NEED an airgap from the outside to be between the walls, this for the condensation that will be there! When explaining them they can't do it because of the fact that taken care of these wall and putting a hole in it again is useless.
So please help me on this one, if anybody has any experience on this.

I was thinking of creating a vent box that takes care of it..but I need help!

gullfo · **Posted:** Fri Jan 14, 2011 7:32 am

is there a vapor barrier/retarder applied on the exterior? if not, then you might have to ventilate to allow drainage which might not be solved easily with a box. do you have any details from the contractors about what specifically they are proposing to do to provide the ventilation?

Funky Animal · **Posted:** Fri Jan 14, 2011 8:48 am

There is no vapor barrier/retarder. They just want to put vents in the wall. These are about 10x6cm they say 1 is enough..
Ps if i handle quick enough i might be able to still add a avpor barrier between the osb and insulation..? Or would that he not good enough? Just need to try and find the proper foil here in holland.. Which will be the hardest part

gullfo · **Posted:** Sat Jan 15, 2011 12:40 am

i'm just trying to understand why they think the wall needs venting versus just the roof. is there some actual moisture permeability issue or is it a building code concern?

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