Search: Posts Made By: manhattan42
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06-04-10, 06:06 PM
Replies: 3
Views: 9,237
Posted By manhattan42

You wall insulation should be at least R-21 for...

You wall insulation should be at least R-21 for your region, ceiling insulation at least R-49 and floor insulation at least R-30. (Yes you will need to insulate the floor)

The vapor retarder on...
03-20-10, 08:01 PM
Replies: 4
Views: 4,662
Posted By manhattan42

Leave the Blanket Insulation

Leave the blanket insulation in place but be careful to frame your walls so as not to compress it at all.

This will be your cheapest option and will provide you with framed walls through wich you...
03-08-10, 08:49 PM
Replies: 11
Views: 11,991
Posted By manhattan42

Except...

Except that what airman.1994 suggests violates pretty much every building, energy or mechanical code when it comes to installing a closed crawlspace... and is not permitted anywhere....:confused:
...
03-08-10, 08:46 PM
Replies: 9
Views: 882
Posted By manhattan42

So What?

airman.1994 said:

"It could save more money by insulating better but you will still have the radiant heat. "

To which I answer: "So What?"

Radiant heat built up in an attic is best dealt...
03-08-10, 01:28 PM
Replies: 9
Views: 882
Posted By manhattan42

Heat Transfer

Insulation is designed to limit heat transfer.

That is what the "R-value" measures.

The higher the R-value, the more heat is prevented from transferring through the ceiling, wall, or floor...
03-08-10, 09:10 AM
Replies: 11
Views: 11,991
Posted By manhattan42

Closed CrawlSpace

RegNurse asked: "I hate the thought of having to pull out the existing insulation, placing the foam, and then having to cover the foam with drywall or other barrier. And unless I do all those things,...
03-08-10, 08:47 AM
Replies: 7
Views: 1,824
Posted By manhattan42

Thanks

Thanks for noting some of the fine points regarding 'medium density' vs 'high density' fiberglass...and your opinions regarding vapor retarders and foam insulations... but these are not really...
03-08-10, 07:34 AM
Replies: 7
Views: 1,824
Posted By manhattan42

R-13

R-13 IS 'compressed' fiberglass.

It is the 'high-density' form of R-11 and designed to fit in 2x4 cavities...
-----------------

It is unlikley that vapor will ever condense on the...
03-08-10, 07:22 AM
Replies: 9
Views: 882
Posted By manhattan42

Why a Radiant Barrier?

Why do you want to add a radiant barrier?

Is it to keep your house cooler in summer?

If so, save you money and put it to use where it can really help you: By installing more insulation on the...
03-08-10, 07:12 AM
Replies: 11
Views: 11,991
Posted By manhattan42

Conditioned Crawlspace

What you are describing is an unvented or 'conditioned crawlspace'.

And by definition, this type of crawlspace must be 'conditioned' to be installed.

'Conditioning' means heating and/or cooling...
03-08-10, 06:26 AM
Replies: 7
Views: 1,824
Posted By manhattan42

Need R-19 For the Wall

Unless you will have an insulated and heated garage, your plan does not meet Code in Pennsylvania.

Why?

Because the wall between the garage and living space is part of the thermal envelope and...
03-08-10, 06:08 AM
Replies: 3
Views: 4,118
Posted By manhattan42

Combustion Air Intakes?

Tolyn asked the right question when he asked if you had a wood burner or some other type of combustion furnace in the house.

The vents may be there to provide combustion air into a space that is...
03-08-10, 05:56 AM
Replies: 3
Views: 787
Posted By manhattan42

SIPs

You can achieve a wall just as thermally efficient without using SIPsor the method mentioned above by using simple 2x6 framing, placing 1" foam board on the exterior of the structure and using R-19...
08-04-09, 07:47 PM
Replies: 5
Views: 1,746
Posted By manhattan42

"Spans" for what? Ceiling joists? Floors? ...

"Spans" for what?

Ceiling joists?
Floors?
Main floors?
Second story bedroom floors?
Exterior deck floors?
Trellis joists?
What Code?
01-02-09, 06:17 PM
Replies: 3
Views: 1,952
Posted By manhattan42

Not Dumb at All

Chandler's advice isn't dumb at all.

I've built 'what looked like 'closets' in basement walls with bifold doors whose sole purpose was to access water meters, plumbing shutoffs, and electrical...
Replies: 4
Views: 1,364
Posted By manhattan42

Bad Idea

The 1 1/2" gap behind the brick veneer is required to be there to allow condensed moisture from within the structure as well as liquid water that penetrates the brick to find its way out through the...
01-02-09, 05:57 PM
Replies: 8
Views: 1,248
Posted By manhattan42

Add Insulation, Yes

You should by all means add insulation to a minimum value of R-38 or more for your region.

Adding insulation will increase your comfort and lower your building's joint energy costs and maintenance...
07-03-07, 07:46 PM
Replies: 1
Views: 2,883
Posted By manhattan42

Consult the manufacturer's clearances from...

Consult the manufacturer's clearances from insulation for your answer.
03-13-06, 11:31 AM
Replies: 28
Views: 7,387
Posted By manhattan42

Code in Pennsylvania, Florida, Ohio and Arkansas...

Code in Pennsylvania, Florida, Ohio and Arkansas is identical. And yes, do check them. Local codes will only require the the pipe size to be larger.

1" minimum is required for 9.7 water supply...
03-13-06, 04:31 AM
Replies: 28
Views: 7,387
Posted By manhattan42

Unfortunatlely, 1" pipe is not 'oversizing' of...

Unfortunatlely, 1" pipe is not 'oversizing' of the pipe. It is the minimum code compliant size, even in Pennsylvania.

IRC code requires pipes to be insulated to prevent heat loss/heat gain.

1"...
03-12-06, 06:37 PM
Replies: 28
Views: 7,387
Posted By manhattan42

Code

Based on your water supply fixture units, developed pipe length, elevation, a presumed static pressure of anywhere between 40psi and 60psi and no adjustments for pressure reducers/specialty...
03-12-06, 02:34 PM
Replies: 4
Views: 1,236
Posted By manhattan42

Building codes require the installation of at...

Building codes require the installation of at least .065" steel plates over pipes where they run perpendicular to framing members and come within 1 1/2" from the edge of the framing member.

This...
Replies: 13
Views: 3,393
Posted By manhattan42

Not true. The research has already been done...

Not true.

The research has already been done and the truth is quite the opposite.

It is an established fact that plywood absorbs water MORE READILY than OSB.

The difference between the two,...
03-12-06, 01:53 PM
Replies: 6
Views: 9,847
Posted By manhattan42

There's any number of 'standard' ways to build a...

There's any number of 'standard' ways to build a continuous header.

Depending upon how you ultimately do it, there are equally but differing numbers of acceptable nailing patterns...

10 foot...
Replies: 13
Views: 3,393
Posted By manhattan42

Local codes aside, because local codes can make...

Local codes aside, because local codes can make up any rules they wish so long as they exceed model code minimums....

All major national codes recognize along with the wood manufacturers...
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