North House Side 2

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photos:

Roof rafters

trellis

EPDM

trellis

Screw EPDM in with wide head nails or screws. Or use washers

Complication here: j channel, undersill trim, + drip edge made of siding strip with notches

EPDM rationale: siding could be used below Vertical Supports, but not under (too hard to get it between the verticals). But, need to insert the siding under the top EPDM - so the only practical way to do that is by using EPDM on the sides

4.75”

Top EPDM

Screw EPDM in with wide head nails or screws. Or use washers

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Insulation box

Insulation box spacer

Roof plywood

Angular rise is not shown

Slight bolt angle downwards is useful in order to reach the roof rafters, not the “roof plywood” or “Insulation box spacer”. On West side - bolt reaches the roof riser. Otherwise: a bolt 1” up from edge goes into roof plywood, making a weaker connection.

Top lag bolt - right below termination bar

¾”

South House Side

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photos:

house

trellis

EPDM

trellis

Screw EPDM in with wide head nails or screws. Or use washers

J channel + siding from there on

EPDM rationale: siding could be used below Vertical Supports, but not under (too hard to get it between the verticals). But, need to insert the siding under the top EPDM - so the only practical way to do that is by using EPDM on the sides

Top EPDM

Back Side 3 - Siding

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house

trellis

1x4 treated

trellis

Siding pinched behind

Do I need to cut this?

These should be 5” long to penetrate 2” into house, or nail the ledger at a tighter schedule

Ledger

Water Intrusion Prevention - Try 2

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Notes:

1. Gutter is such that the south side of gutter (gutter downspout is on south side) does not allow proper insertion of gutter hanger, because the nose metal is for some reason pinched on the end and gutter hanger can’t slip in properly under the nose flange. See picture - the Sharpie marks show location where nose metal is pinched - had to move the hanger over 12” more or so.
2. Tested gutter with water. Drains properly - but slope over 30’ is about 3” relative to the top of house. This means far end is right under 2x6 ledger.
3. 1x4 treated spacer for gutter slopes over the 32’ - from right on top of angle flashing to 2x6 ledger
4. On far end from downspout - angle flashing is important for water intrusion while on the close end the gutter covers the angle flashing
5. Used one screw on gutter downspout connection to gutter - to minimize blockage that the screw causes
6. Used rivets to connect gutter adapter to gutter. This avoids using a special gutter drop section.
7. Used 1 screw on each side for connecting 2 gutter sections and downspout elbow.

house

trellis

Down- spout

2.5”

1x4 treated Spacer needed so gutter clears trellis

This may flap too much

Used angle flashing (roof edge)

Lag bolts may be short such as 4” - but that means ledger must be nailed down at a tight schedule of about 4” or so to match the 900 lb pullout strength of lag bolts (see calculations page). Or ledger must be lag bolted down. Since ledger holds down the roof PV - nailing schedule must indeed be aggressive. Or use lag bolts. Right now, ledger is nailed, but 5” lag bolts would hold down ledger + Top Band verticals

2x6 Ledger

Top Band verticals

Nose metal

Materials Count 208’ total

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E - 64’

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W - 64’

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N -32’

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S - 48’

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House sides

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photos:

house

trellis

EPDM

trellis

Screw EPDM in with wide head nails or screws. Or use washers

Complication here: j channel, undersill trim, + drip edge made of siding strip with notches

Drip cap - not really a good water seal - water can get behind it by capillary action

EPDM rationale: siding could be used below Vertical Supports, but not under (too hard to get it between the verticals). But, need to insert the siding under the top EPDM - so the only practical way to do that is by using EPDM on the sides

EPDM

Top EPDM

Back side 2 - EPDM

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Back:

• Use siding to cover area above trellis
• Use 1x4 to pinch the siding
• Droop the Roof EPDM so that water ends up in front of 1x4 lumber to address water intrusion

Issues:

1. Floppy end of EPDM - may be messy and hard to cut straight. Termination bar needed

house

trellis

1x4 treated

trellis

12”

EPDM pinched behind

Roof EPDM

Back side 1 - Siding

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Back side issue:

• Weird part is left - detail there is hard , see Back Side 3

house

trellis

1x4 treated

trellis

12”

Siding pinched behind

Weird part

Water Intrusion Prevention - Try 1

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Front:

• Lag screws penetrate the EPDM
• EPDM caulk after verticals are installed?

house

trellis

Down- spout

2.5”

Wind Loads - Lag Bolt Pull-Out Calculations

Force?

1

• Would like a 3-10x safety factor for 90 MPH wind
• ⅜” lag screws - 450 lb per inch of thread (tensile strenght of steel is about 10x this, so pull force << tensile strength
• 24” length of vertical
• Assume 90 mph wind, all force acing on top of vertical support (yields conservative scenario)
• Wind load calculator - 62 lb with 1.5 ft height of facade, and 2 foot section (3 sf area per post)
• We have 450 lb pullout at the upper bolt
• ⅜” lag bolts go in 2” (2x lumber + ⅝” sheathing) - or 900 lb pullout
• 1 bolts on top is 900 lb - 2x safety factor
• Safety factor of 2 for 90 mph wind. Industry standard safety factor appears to be 2.0.
• Thus, we are at the required safety factor
1. House design can withstand 1 Fujita Scale and Category 1 (light) hurricanes. See Wind Load Calculator for ratings.
• Bolts are oriented vertically
• We have a 2x4 solid insulation box on top (top bolt), we want to catch the 2x12 roof joist below (bottom bolt)

Wind

Force

62 lb

Force here is 24”/5.5”*62 lb f=

270 lb.

Bolts are actually 2” lower or 24/3.3*62

450 lB

fulcrum

This bolt should be 1” above bottom of post to catch the 2x12 roof joists

Build Procedure

CAD

Verticals

Facade

1

Gutter

Back Verticals

Steps:

1. Attach water detail before verticals
2. Gutter
3. Verticals
1. Do 9 verticals on each side, 17 on front. Back ones are 4” shorter (4” rise).
4. Facade

Trim this off or add another block? Tim it, as we’re at a 2x safety factor for 90 mph wind

If facade is 17” - it’s 8” white band and 8” siding.

Gutter Goes Straight Down

CAD

• Does downspout adapter fit? Yes.
• Rivets or screws for connection?
• Rivets dominate commercial construction
• Screws catch leaves. But are easier to take out for cleaning.

1x4 treated lumber

trellis

Down- spout

2.5”

Downspout is right next to house

1.5” EPDM hangs under termination bar + covers screw

Termination Bar

Pole Barn Screw

Flashing

(vinyl siding cutoffs)

Gutter Hanger

Gutter

Design rationale:

1. Allows full waterproofing of rooftop, sending all water into gutter
2. Allows for attachment of facade and solar panels to the Ledger
3. Leaves only small gap after passing through the trellis - in which case a compound miter can be made on the gutter - see next page

Ledger for facade attachment

Carport Side

Carport

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Down- spout

2.5”

Downspout is right next to house

1.5” EPDM hangs under termination bar

Termination Bar

12” trim band

Go Around Bends with a Compound Miter

CAD

• When there is just a small angle to clear - cut an angle in the downspout like this:

Will need to move 1.5” closer to house after green trellis here

To Put on Endcap, First Crimp, then Seal

CAD

• Endcap like this every 5 years. Another video by this guy says this starts to leak every 5 years.

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• But it appears that sealant should go inside - and outside! Inside is important so there is no water freezing inside the connection. Does this make endcaps tight for more than 5 years?

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• Strap downspout using cut straps like this video - it is neat, more secure, and uses less screws

Gutter Detail

CAD

• Upper downspout is round hole - goes into square
• Elbow at bottom

house

5” space North of trellis bar

trellis

gutter

Gutter elbow

Home depot

Space under gutter only 2.5”

CAD

• 2.5” space under gutter
• Could be used for 12” vinyl flashing?

• 17” height of house extension

Need 32’ of 2x4 treated 0

23.5” vertical supports

Lag Bolts for Verticals?

CAD

23.5” vertical supports

Facade is 17” tall

(at the front)

1

⅜”x4” Bolts

Front - 17x2=34

Side - 9x2=18

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52 verticals total. 104 bolts total.

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Note the Roof Rise

CAD

View from North side

View from South Side

Slope is pitch of EPDM3

Temp Holder

Overhang Half Way - for leaf non-trap

EPDM to gutter

2x6

Conceptual Design

CAD

• White Band
• 2x6 attach to wall
• Gutter on front

house

gutter

Seed Eco-Home Decorative Trellis

CAD

• Band bottom is at base of second story top plate.
• [2] 2x6 are used
• Front needs about 18” to cover area above sheathing

Effective Overhang

Create an overhang:

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house

2x6 - 1’8-¼”

1’9-¾”

Effective Overhang

Create an overhang:

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house

2x6 - 1’8-¼”

1’9-¾”

Actual

Create an overhang:

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house

2x6 - 1’8-¼”

1’9-¾”

Detail CAD

Vertical support was moved

Should be moved to support corner trim

‘Overhang’

Detail CAD - Explanation of Structure

2x6 Treated Lumber Structure

Notes:

1. Siding goes all way up the house first.
2. Z flashing is added
3. Trellis starts where top siding ends
1. Should be 17” from top of house?

9” long pieces

[2] 16’ members add up to 32’

Detail CAD - Explanation of Siding

Siding goes from 17” to 21” in height

Small blocking piece covers side of house from water infiltration

Detail CAD - Facade - 17” layer above decorative band

Plywood should extend under white band on top - not go under it

Detail CAD - Facade Attachment

Note that facade attaches to another 2x6 that is over the insulation box, extending the roof 1.5” both east and west. This is for PV mounting with angle screwed to side, not top penetration

Detail CAD - Facade Attachment

Note that termination bar holds the gutter. Not great. Hang gutter below termination bar, and extend EPDM to drip into gutter. Also, move termination bar up, and pinch with facade 2x4s.

Future Work

1’9-¾”

EPDM covered roof”

Facade