1 of 30

Seed Eco-Home Final Trim

3/8x8 white

3/8x8 white top handrail

3/8x6 white top handrail

1x6 West - x8 North

Starter Strip

1x8 South - 1x6 East

1x8 South - 1x6 West

Starter Strip

Undersill Trim

J Channel

Starter Strip

3/8x6 corner + north corner

3/8x6 front on door covers 3/8x8 so joint is not visible

3/8x6 front

White band 3/8x12

Inside is 1x4 treated

2 of 30

Penetrations

Use flexible tape around PVC penetrations

Vent stack

Cooktop vent

laundry

Bath vent

Water faucet

light

outlet

Power

meter

Breaker Box

Deck outlet

Deck light

Carport light

Heat pump mount

Heat pump disconnect

Heat pump pipes

outlet

Bath vent

3 of 30

Penetrations

Disconnect Switch

Menards 1. Plastic.
Menards 2. Install video

Weatherproof electrical box home depot

Menards box
Horizontal outlet kit

4 of 30

Front

Height of light - 66 to 72 inch

Canopy

light

10’

light-note move 1” under canopy - all electrical

porch

outlet

66” to center

8” to bottom of box

Ti ps video

5 of 30

Penetrations - Practices

Use flexible tape around PVC penetrations
Can do a vent penetration after siding is done -
Video +

6 of 30

Any Obstruction

J-Channel:

J-cutter - 5/8”
For bottom, cut straight, use notches, and only need to go longer by width of face of J-trim
Although J-channel is preferred, utility channel can also be used

Bottom: Cut to width of window + 2x face width, notch both sides

Top: Cut to width of window + 2x face width - angle and flap down on each side

2 Sides: Cut to height of window + 2x face width - flap down bottom and

notch out top, and Angle the bottom

7 of 30

Trim and Siding

Mark level with laser level for location of starter strip. Mark top of starter strip, about 1” above siding, so that installed trim hangs down about 1” from siding.
Start white trim at carport.

Do Northeast corner post 2 sides, then top and side of railing. This determines where North side trim starts.

Door trim may need to be shimmed on underside of door.
Use finish nailer for trim?
Do Carport with band, edges of house
Then move on to Starter Strip

Joining Siding

Joining J-Channel
Splicing undersill trim - p18

“Should more than one length of undersill trim be required, make a splice as shown by cutting away 1” from the back of the undersill trim and lapping the sections, leaving a 1/4” space between nailing strip sections.”

8 of 30

Junctions

Starter Strip p17. Leave ¼” space. Nail at 8-12” intervals

J-Channel - cut bottom piece - 1” off nailing flange, and some of lip

9 of 30

Installation Basics

https://hw.menardc.com/main/items/media/KPBUI001/Install_Instruct/Kay3267_r1.pdf

10 of 30

Snap-Lock Punch - Make Perforations in vinyl

https://www.youtube.com/watch?v=qg0YT55Lp-A

11 of 30

Undersill Trim

https://www.youtube.com/watch?v=h0uXijnFuRI

Notes: used over and under doors and windows, or under eaves.
Nail slots align with j-channel nail slots

12 of 30

Vinyl Siding - Starter Strip

Video

13 of 30

Nails and Fasteners

Nails - must have a head at least 5/32” size - p7

Roofing nails can be used, ⅜” head or larger
Framing and roofing guns could possibly be used, but must have large head and must provide required offset for free motion of siding

Screws - for thin siding
Note that siding nailers cannot drive roofing nails and vice versa!
LP Smartside - 1.5 min penetration, 0.113 shank HDG - 0.27 head size
Trim installation

Resulting rant:

I'm ag-assed at another thing. Why are professionarts still using hammers for vinyl siding when siding nailers exist and save tremendous amounts of time? Most videos on Youtube show people hammering siding with hammers, and even a guy who 'invented' an offset hammer (to offset the nail for free motion of siding). Blows my mind! Then, it turns out that the siding nailers are even tarter. They don't even drive the large-head vinyl siding nails. So it appears the only way to do it is to use a roofing nailer, with roofing type nails, which are not ring shanked - so not optimal for siding. And using an offset adapter. But - some roofing guns appear to have built in height adjustment that does not rely on air pressure.

https://lpcorp.com/blog/what-are-the-best-nails-to-use-for-engineered-wood-siding

https://lpcorp.com/blog/installation-video-series-part-1-installing-lp-smartside-trim-fascia

14 of 30

Seed Eco-Home Final Trim - Carport Order

Notes:

3a before 3b. 5 placeholder is in place to determine length of 3a.
Length was 16’2” for 3b, so need a scab at 4.
4 is with seam showing to ‘equalize x6 and x8’
Make sure underside of 3b is not showing, and make sure to make angle with 3a+3b
For 1 and 2 - align them. Would be easier with 1x instead of ⅜ so we could nail at right angle
2 is in front looking from the East side to hide seam
1 nails were finish nails for little hold, then finished with .113 framing nails, half and full head

Pulled out 1 on W side - to equalize the edge
Good thing about finish nails - they pull out easily to equalize corners

Note that 4 is a 1x8, and 5 is a 1x6.

South corner also has a 1x6 on the east side, and 1x8 on the south side - to match 4 and 5
Note that a seam shows between 4 and 5 - and the same on south side.

Keep it the same for uniform looks.

15 of 30

How to Overlap Siding

Note that both sides are notched so that there is no bump between sections (common part of nailing plate is removed) - and butt leg (next page) is trimmed?

Source link

Free space so there is no hump in the siding.

16 of 30

Terms and Tools

Link
Note: titanium dioxide is used as the stabilizer

Vinyl Tools:

Utility knife
Aviation snips
Large scissor
6.6” Circular saw with vinyl blade
Snap lock punch - for snapping into utility channel
Nail slot punch - for attaching

17 of 30

Material Count

Undersill trim
J chan
Note: undersill trim may not be needed - depends on location

Detail of band on next page

18 of 30

Band Detail - Front

Band Detail - Side

Undersill trim
J chan
Starter Strip

Starter strip may be used whenever level pattern is not important

house

band

Trellis hanger 2x6

Gutter 2x6

Top of trellis hang should be caulked before vinyl siding is applied. J channel helps to block water, but if there are joints in j-channel - they will leak. So there is no advantage to J-channel over starter strip. Advantage of starter strip is ½ the cost.

Quantities:

300’ of starter strip just for trellis

300’ of undersill trim just for trellis

house

band

Trellis hanger 2x6

Undersill trim, with EPDM hanging over 2”

19 of 30

Edge Cases - Starter Strip

Guide PDF

Carport

trim

J Channel

Starter Strip

Leave ¼” space between starter strips
Leave ¼” space between starter strip and J channel at corner or door

OBI version has trim + J channel

Why not use J-channel instead of starter strip?

Because J-channel is a mini-gutter that collects water and debris

¼” space

door

= J-Channel

= trim

= starter strip

Space is allowed as water drips to ground

= undersill trim

20 of 30

Edge Cases - J Channel

Guide PDF

Carport

J-Channel:

Must be continuous over doors and windows of interior spaces to minimize leakage into house
Overlap vertical J-Channel (shingle)

Cut away 1” of nailing flange on upper channel - and the lip of face
Insert into lower J-Channel, but leave a ¼” gap in nail flange

Is J-channel on edges even with Starter Strip?

door

window

“window”

J-Channel does not have to be continuous over carport door (or over carport belly-band

Nailing flange

Lip of face

= J-Channel

= trim

= starter strip

= undersill trim

21 of 30

Issues and Notes

On carport, we only have ⅝” fastener depth - need to use screws
“In certain situations, it may be necessary to use J-channel as a starter strip” - p.13
“The corner post should extend 3/4” below the starter strip.” - p.13
10” should be flashed on corner - but housewrap classifies as flashing here. Link.
Starter strip ¾” below corner post - but does this apply to our corner trim? Link.
Undersill trim - “Utility Trim: a piece of trim used any time the top lock has been removed from the siding, to secure a siding panel. Also referred to as “undersill” or “finish” trim; double utility trim is also available.’ Link.

J-Channel

Utility Trim

Siding can be attached either in front of or behind the utility trim - depending on where in relation to rib height it is cut

22 of 30

Can Undersill Trim Function Like Double Undersill Trim

Let’s derive above aperture. It is similar for below aperture.

Tight. Ok.

Loose, not ok.

Utility trim is used to hold siding.

Specifically, Abtco instructions state that utility trim is used any time the upper lock (or bottom lock) on siding has been removed. P. 17.
Note this is not entirely correct - to maintain correct angle of siding - furring strip may be needed - ie -

23 of 30

Around Windows

Need notcher, snips and razor.
P. 17 of Abtco instructions.
But depending on where the cut is made - may need furring strip to space

24 of 30

Splicing Undersill Trim - Towards Eaves

Will need to splice - as we have 32’ of “eave”

“Should more than one length of undersill trim be required, make a splice as shown by cutting away 1” from the back of the undersill trim and lapping the sections, leaving a 1/4” space between nailing strip sections.”

Note siding detail going up the house: cut off nailing flange, but stick siding into j-channel.

Cut is around 1.5”

25 of 30

26 of 30

Vinyl Install

Guide PDF

Starter strip - nail at 10” intervals

Nail must go in ¾”

Leave ¼” at end for expansion
Leave ¼” between strips to allow for expansion
Leave space for J channel going to corner or wall
Vinyl panels move freely side to side when fastened
J channel goes around windows and doors

In our case, it goes up to the trim.

Nail siding at 8-12” apart
Note - for screws - largest major screw thread that fits is #8 which is 5/32 major diameter (notch size)

https://www.youtube.com/watch?v=-assyzkaGoI

window

trim

J-Channel all around

Undersill trim

27 of 30

J-Trimming A Window

J-Channel:

J-channel around window is tight? Here it seems to be

8-10 minutes per window once technique is down
I like this guy - he pays attention to workflow time

Steps:

Install bottom, notch out and cut off where sides will overlap bottom. No angle.

Another in plastic.

Steel version - top is not bent, it’s just a gutter that spills.

28 of 30

Interior of Obstruction

What happens at interior hole:

Miter the top and sides like in normal window detail, but now the trim fits inside the aperture, so measurement of trim is same as “window” measurement
Note we may need to use undersill flashing at bottom and/or top of “window” - depending on location of “window” with respect to rest of siding
Note the siding alignment inside “window” must match the rest of house
This also applies to carport where trim forms a square

window

“window”

29 of 30

Apertures in Seed Eco-Home

We have:

Lights - 66” up on 2 sides 12” away in flange boxes
Deck light - 1 above door
Outdoor receptacle - front
Outdoor receptacle - carport
Bathroom fan vent -
Dryer vent -
Vent hood for stove - just J-channel
Electrical disconnect for Heat Pump
Heat pump tubing hole mounting
Heat pump mounting
Awning

30 of 30

Edge Cases - Carport

Guide PDF

J-Channel:

Make East side even with North Side
Thus, need to use J-Channel with Undersill Trim

Use J-Channel around 1” and ⅜” trim

3 sides wherever starter strip is used
4 sides on other rectangles