I'm installing a new asphalt roof. Can the black flat part in the picture be placed between the deck and the asphalt tiles for a permanent install?

The flashing (boot) is only tucked in on the up-hill side, it is not completely touching the roof deck. The lower side is on top of the asphalt shingle. The best corollary to this is a plumbing vent collar and it is meant to be permanent as installed. There is a cover boot for the ring as well to keep water out.

Can these be used on old bigger 2x4 rafters (old 1 3/4" by 3 3/4" vs modern 2x4s at 1 1/2" x 3 1/2")?

The spacing between the two rods is around 1 5/8 inches. The rods may flex a little bit.

Does this require any removal of shingles on a finished roof.

There are 4 no s and 1 yes. According to the 3 M website, the shingles have to be removed to install the flashing.

Can this be used on metal standing seam roof?

If it went thru something solid under it you could.

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DBI-SALA 2103670 Permanent Roof Anchor with Flashing and Cap, Designed to Fit Multiple Size Trusses with Bolt and Clamp Installation

Product ID: 20295235

Details

Material
Vinyl
Grade Rating
Grade 2
Thread Size
0.25 inches -
Exterior Finish
Zinc
Manufacturer Grade
Grade 2

🔒Grade 2 Safety

🔩0.25" Thread Size

🏗️Fits 2x8 Roofs

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41497 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Secure Your Safety with Style!

VERSATILE USE - Perfect for contractors and homeowners alike, ensuring safety during construction and maintenance.
DURABLE DESIGN - Crafted from zinc-plated steel for long-lasting performance.
LIFETIME WARRANTY - Enjoy a limited lifetime warranty for added confidence in your purchase.
EFFORTLESS INSTALLATION - Everything you need is included for a quick setup.
ROBUST SAFETY ASSURANCE - Specialized fall protection for peace of mind on any job site.

The 3M DBI-SALA 2103670 U-Bolt Roof Anchor is a permanent anchorage solution designed for both residential and commercial wood frame structures. This robust anchor fits up to 2x8 roof members and includes everything needed for a straightforward installation, ensuring safety and productivity for contractors and homeowners alike.

Specifications

Material	Vinyl
Grade Rating	Grade 2
Thread Size	0.25 inches - 20 UNC
Exterior Finish	Zinc
Manufacturer Grade	Grade 2
Head Style	U-Bolt, Truss
Color	Black/Silver
Fastener Type	U-Bolt
Brand	3M
Item Diameter	0.4 Inches
Size	2x8
Metal Type	Zinc Plated Steel
Head Type	U-Bolt
Number of Pieces	1
UPC	648250161821 634553996321
Global Trade Identification Number	00648250161821
Manufacturer	3M
Part Number	2103670
Item Weight	1.95 pounds
Item model number	2103670
Is Discontinued By Manufacturer	No
Power Source	No
Item Package Quantity	1
Cutting Diameter	0.4 Inches
Batteries Included?	No
Batteries Required?	No
Warranty Description	Limited Lifetime

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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41497 kr

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In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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