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15 votes

How important is Tyvek/house wrap for a house with metal siding?

While I don't doubt that your father 'never installed a house wrap for a metal building in his life' I have to wonder how many of them were residences? Buildings with walls that trap moisture or where ...
Ack's user avatar
  • 5,729
13 votes
Accepted

How important is Tyvek/house wrap for a house with metal siding?

I don’t see a problem with felt for a portion as it was used for years, I believe a wrap is a good idea as it will increase the energy efficiency and keep the condensation from the metal off the ...
Ed Beal's user avatar
  • 103k
7 votes

How important is Tyvek/house wrap for a house with metal siding?

I don't see what the issue would be with the Tyvek (or any other) house wrap. When my renovations were done, much of the brick was removed & replaced with OSB+Foam Board+ House Wrap + Hardiplank (...
SteveSh's user avatar
  • 6,892
4 votes
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Why aren't siding nail holes a concern with Tyvek house wrap?

While products like Tyvek do act as a drain plane to some extent, they're not truly waterproof. They're designed to allow vapor to easily pass, and therefore they're inherently an imperfect ...
isherwood's user avatar
  • 138k
4 votes

Is it worthwhile to cover fiberglass insulation with Tyvek under a house?

Tyvek will not add any insulative value. Aside from helping keep the insulation in place and preventing it from falling down, it will act as a draft stop and might be worth your time to install it.
matt.'s user avatar
  • 3,051
3 votes

Home siding blown off by strong wind. Wood and housewrap exposed

That tyvek is the vapour barrier, it won’t let rain through… As long as it has been installed correctly… But if they failed to install the siding correctly then who knows. Sooner it is covered the ...
Solar Mike's user avatar
  • 27.4k
3 votes
Accepted

Do I need house wrap if I'm installing ridgid foam?

Housewrap (i.e. Tyvek and similar products) and rigid foam are in no way the same thing nor do they serve the same purpose. Rigid foam is an insulation product and does just that, insulates. It ...
jwh20's user avatar
  • 23.3k
3 votes

How important is Tyvek/house wrap for a house with metal siding?

Also in this case, a reliable way to get all necessary information concerning possible moisture, insulation and mold problems is to input each material in the layer fields on the professional Ubakus ...
xeeka's user avatar
  • 2,548
3 votes

What's the best house wrap to use underneath hardiplank (fiber cement) sidings?

Make sure you install your siding according to ALL the manufacturers instructions, including the house wrap. See the Hardi specifications. If you notice, the third item under “General Requirements” ...
Lee Sam's user avatar
  • 23.2k
2 votes

Should the meter base be installed before chink siding in new construction?

Should the meter base be installed before chink siding in new construction? Yes. B. Install the meter base on the sheathing over the Tyvek?
Billy left SE for Codidact's user avatar
2 votes

Insulating a Wall Against Unconditioned Attic Space

I think your best bet is two-fold. You can insulate against the temperature delta between the spaces. I strongly recommend spray foam. It will provide a airtight and high R-value insulation layer. You ...
Matthew's user avatar
  • 9,847
2 votes
Accepted

Gap between foundation and wrap

That's a water proofing hard'ish plastic called air gap waterproofing membrane, commonly referred to as dimple board. it's not a part of the vapour barrier and it's primary function is to stop water ...
Joe Fala's user avatar
  • 6,364
2 votes
Accepted

What to cover underside of shed subfloor

Normally a shed does not have an insulated floor but since yours is going to be insulated i would not leave it open for critters to nest in or chew up and take away for a nests. I would cover the ...
Alaska Man's user avatar
  • 13.6k
2 votes
Accepted

Can I reduce draft in an elevated floor with house wrap below the insulation?

Yes it would. I've built a number of "four season porches" in Minnesota (for high-end clients who would've certainly complained if their floor was cold). They're essentially rooms on posts. ...
isherwood's user avatar
  • 138k
2 votes

Is it worthwhile to cover fiberglass insulation with Tyvek under a house?

It may no longer be the case, or perhaps in this one, but Tyvek cannot handle long term UV exposure, and would figure that the underside of the home will at least get some exposure, even if it is ...
Jack's user avatar
  • 35.2k
1 vote

Installing House wrap and Siding

House wrap is not your main defense line against water intrusion or drafts. It is more like a secondary line of defense, in case any water goes past the siding, you have another layer there, directing ...
Cheery's user avatar
  • 5,745
1 vote

Door Flashing - Is it ok to use multiple sheets of metal overlapped rather than one solid one?

Think like water. Imagine you have a pool in the bottom of the pan 10 years from now. Is the caulking you dutifully applied at the joint going to hold? I don’t know. I get pans from hvac guys and rain ...
Aloysius Defenestrate's user avatar
1 vote
Accepted

Home siding blown off by strong wind. Wood and housewrap exposed

Builders leave the entire building in this state for months. The tyvek is generally recommended to be covered within 6 months for uv issues. As is it should shed water and you have a rainscreen gap. ...
Fresh Codemonger's user avatar
1 vote
Accepted

housewrap without removing siding

We use housewrap because we know the exterior siding will leak. If your building is NOT leaking now, then adding insulation will not create it to start leaking. Does the inside of the wood frame wall ...
Lee Sam's user avatar
  • 3,788
1 vote
Accepted

how to wrap/weatherproof corner when replacing corner trim

Traditionally you'd have just caulked the siding to the corner board, and that would act as the drain plane. However, modern standards do tend to provide a secondary plan, as you've surmised. You ...
isherwood's user avatar
  • 138k
1 vote

Adding house wrap behind existing board and batten siding

If you are going to do this you might as well go all the way. The housewrap is kind of like saying you are cold so you put on some underwear. Might warm you up a little but being fully clothed is ...
DMoore's user avatar
  • 48.3k
1 vote

What to cover underside of shed subfloor

Any sort of outdoor space we put insulation in we put a couple layers of chicken wire under the joists to not only keep creatures out but to keep insulation in place. It really is that easy.
DMoore's user avatar
  • 48.3k
1 vote

What to cover underside of shed subfloor

Don't leave it open, like Alaska Man said. My son has a sunroom that was built atop existing framing for a deck. The underneath of the floor was insulated, just like you're describing. He had all ...
SteveSh's user avatar
  • 6,892
1 vote

Insulating a Wall Against Unconditioned Attic Space

I am not clear at all from your description how your rooms are laid out. One thing I'd try is not on your list I'd install an attic fan on one of the gable vents with a thermostatic control. This ...
batsplatsterson's user avatar
1 vote

Is it worth it to replace T1-11 siding just to install house wrap?

I looked in the 2012 residential building code book I have and there is no exception for the building paper/tyvek. It is to be used in all instances of siding. Whether it be brick, cement board, ...
Jack's user avatar
  • 35.2k
1 vote

Should the meter base be installed before chink siding in new construction?

As other's commented, there are down sides to installing meter box on the siding. I had Hardie plank siding installed a few years ago, and if read all their fine print, they don't like extra ...
DaveM's user avatar
  • 2,715
1 vote

How to flash a window when using insulating boards with air barrier included?

You got it. Just install a piece of housewrap over your window, going past the window, maybe 4"+. Then seal thw housewrap to your foamboard using housewrap tape, or flashing tape. Then, refer back ...
NPM's user avatar
  • 2,021
1 vote

House Wrap on Cantilevered Overhang

House wrap is important to stop moisture that might make it through the siding, driving rain, wind, siding sometimes cracks, the wrap will protect the plywood and help with wind pushing into the walls,...
Tkw's user avatar
  • 126
1 vote

What are my vapor-barrier options under Hardie siding?

This is such bad advice! You NEED a water retardant barrier on the outside of your sheathing, which will be UNDERNEATH your hardi shingles. This goes on the OUTSIDE of the home (on top of/over the ...
CraftyLaine's user avatar
1 vote

Is it okay to put house wrap over the top of pre-existing foam insulation?

Cement lap siding is extremely durable compared to vinyl. Good move! By "foam", I assume you mean polystyrene foam board. I would not remove the foam, since it increases the insulation in your house,...
AndyW's user avatar
  • 700

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