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-   -   Board and Batten Project- need help (http://www.diychatroom.com/f19/board-batten-project-need-help-70940/)

getrdun 05-10-2010 09:51 PM

Board and Batten Project- need help
 
We are ripping off our cedar shakes, and re-siding with rough cut Pine on our house. The pine has been fresh cut so I have some time to figure out the best way to do this. (i'll be waiting a few months). We are replacing several of our old windows with new construction windows. My first question is - once I strip everything down to the plywood what is the next step?? I was planing on wraping the house with some sort of tyvek. Then installing 1/2'' furring strips horizontal- spaced around 2' from each other. I then planned on installing 1/2'' foam board in between the firring strips. ( I dont know if i actually need the furring strip?? As far as the windows, how do you recommend resolving the issue - the siding will be out farther then the window?? just trim it out???


any help would be appreciated

thanks

jlhaslip 05-10-2010 10:07 PM

add a thicker window moulding or extend the existing ones.

kwikfishron 05-11-2010 09:33 AM

After you remove your siding you should cover the plywood with 30lb ASTM felt.

B&B needs solid nailing, if the walls were opened up I’d add 2x blocking 2’ on center. In your case I wouldn’t use ” I’d use 1x2 firing strips nailed to studs and pre-treat them with Jasco. I’d also would run the 1x2 slightly out of level and leave a small gap at the joints so the water that gets behind the B&B (and it will) has a way to escape.

If your going to paint or stain your boards you should at least prime the back of the boards.

You want to leave ” gap between the boards and nail the bats with just single nails down the center going into the gap between the boards so the boards and bats can move independently of each other.

Build out your windows, electrical, and other openings with trim as needed.

getrdun 05-11-2010 04:18 PM

After you remove your siding you should cover the plywood with 30lb ASTM felt.

B&B needs solid nailing, if the walls were opened up Id add 2x blocking 2 on center. In your case I wouldnt use Id use 1x2 firing strips nailed to studs and pre-treat them with Jasco. Id also would run the 1x2 slightly out of level and leave a small gap at the joints so the water that gets behind the B&B (and it will) has a way to escape.

If your going to paint or stain your boards you should at least prime the back of the boards.

You want to leave gap between the boards and nail the bats with just single nails down the center going into the gap between the boards so the boards and bats can move independently of each other.

Build out your windows, electrical, and other openings with trim as needed.
__________________



thanks for the info!!! Would you use a tyvek material as a moisture barier?? The problem we have is most of the exterior walls has no insulation, and we had a few spots were it started to mold? this is why i was going to use 1/2'' foam board over the tyvek to add insulation. When we redo room by room we add insulation in the walls as we go. As far as using the 1'' furing strips is this so the wood can get airflow??


so if i get his right the steps would be:

1- 30lbs felt
2- 1x2 furing strips - slighty pitched (good idea)
3- insulate using 1/2'' foam board between the furing strips
4- install board and batten

kwikfishron 05-11-2010 04:51 PM

Tyvek is a vapor barrier not a moister barrier. I would use the felt instead of Tyvek.

The 1x2 is ” thick. I would use that so there is more wood for the nails to bight into. If you use ” don’t use plywood strips, they will delaminate and rot away.

I you have all the siding off that would be the time to blow some insulation in those walls.

getrdun 06-21-2010 02:00 AM

Board and batten project underway!! Need advice!
 
Felt is installed!! I'm going to put up the furing strips next. What size should i get???? i will be installing insulation board between the strips 1/2'' thick dow board. I don't know if there is a recommended air space between the board and batten and the insulation board???( i bought the wood from the amish) i was thinking using 1"x2" but is a 1/4'' enough space???

Thanks for the help!

Tom Struble 06-21-2010 06:40 AM

Quote:

Originally Posted by kwikfishron (Post 440497)
Tyvek is a vapor barrier not a moister barrier. I would use the felt instead of Tyvek.

The 1x2 is thick. I would use that so there is more wood for the nails to bight into. If you use dont use plywood strips, they will delaminate and rot away.

I you have all the siding off that would be the time to blow some insulation in those walls.

Ron tyvek is not a vapor barrier:no:its more vapor permeable than felt,its a air infiltration and weather barrier

kwikfishron 06-21-2010 07:39 AM

Your right, I need to update thought process before I speak. 15 years ago when we started noticing problems with Tyvek and stopped using it, Typar came on the scene. I remember clearly in the Reps. Pitch that all of our problems have been solved with Typar, since “Tyvek is only a vapor barrier and Typar is truly a moister barrier” Those words have been burned in my brain ever since. The Typar fad didn’t last very long, out here on the coast anyway.

Back to OP, 1x2 is fine. When I said to run them slightly out of level to help water drainage, I meant just that, “slightly”. You’ll see the nails on the bats. You don’t want crooked nail lines.

Tom Struble 06-21-2010 06:51 PM

i know how hard it is to unlearn stuff i was taught way back when:laughing:
and alot of my buddies and pro's i greatly respect on the forums are felt guys:thumbup:

getrdun 07-03-2010 12:19 AM

Nailing pattern
 
What is the best way to Nail the boards?????? The wood was cut 2 months ago and has been drying over time. Should I nail them more towards the center?? 2 nails per furring strip? I know to leave a 1/2" gap between the boards- then the batten will be nailed directly to the furring strip.



Also I need to build build out the window before I put the trim on. I was going to wrap a piece of 1/2 ish around frame then install the boards flush with the 1/2'' piece that was installed around the window. Then I was going to install the trim covering the seam from the 1/2" piece and the board siding-- were would I install a drip edge for the window.


any hel[ would be great

kwikfishron 07-03-2010 08:03 AM

You want to nail the boards close to the outside. Maybe in a inch, but you also want to make sure the battens will cover and hide the nails on the board.


In this case you want the drip edge over the window itself.

Bldg 2 Spec 07-03-2010 10:17 AM

You should be nailing your furring on the vertical 24" O.C. you may want to just select an exterior grade version of it. The reason for nailing them vertical is to allow moisture to escape the wall cavity. Secondly if the fascade does fail it will allow somewhere for the moisture to go. We typically place an insect screen at the base to keep insects out.

What is the reason for installing the foam board between the firring strips? My thought is to do this

Flash your windows properly with a membrane like blueskin

Then your building composition should look something like this
Exist plywood
foam board
Air barrier (every company makes an air barrier) Although im not familiar with felt what is the benefit of using felt?
Ext. Grade Vertical strapping 24" o.c.
Then your siding primed all sides. (draft it out or use google sketchup)

Just a thought

Bldg 2 Spec 07-03-2010 10:24 AM

What is the prupose of the felt and why the preference over building paper that breaths very very well? I have seen no problems to date with a properly insulated and rainscreened wall system.

Even the new vapour barriers have now come out on the market are being designed to breath.

Please advise

kwikfishron 07-03-2010 11:54 AM

The Felt is to keep any water intrusion away from the sheathing.

Water intrusion to some degree at almost a given with B&B Siding.

You can not install B&B Siding to 24” OC vertical strapping.

Wildie 07-03-2010 02:06 PM

Quote:

Originally Posted by getrdun (Post 464646)
Also I need to build build out the window before I put the trim on. I was going to wrap a piece of 1/2 ish around frame then install the boards flush with the 1/2'' piece that was installed around the window. Then I was going to install the trim covering the seam from the 1/2" piece and the board siding-- were would I install a drip edge for the window.

any help would be great

I would install aluminum flashing around the windows before installing the B&B.

You never mentioned where you live, but if you live in a Norther area, your insulation will be inadequate.
In the north you should seriously consider a minimum of 2" of insulation. (R10)


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