Skip to content
Mastic Structure Starter Strip for Insulated Siding, 1/2" x 2-5/8" x 12'6", Mill
Regular price $356.40Orders start at $399 — combine any items to reach the minimum. Learn more
Mastic Structure Starter Strip for Insulated Siding, 1/2" x 2-5/8" x 12'6", Mill
This Mastic Structure starter strip is the first course channel developed specifically for Structure Home Insulation System insulated siding. It comes in 1/2" x 2-5/8" x 12'6" lengths in Mill finish, sold by the carton. Its heavy weight and 12'6" length are matched to the insulated siding panels it supports.
Key Features:
- Purpose built: Starter strip developed specifically for Structure Home Insulation System siding.
- Easy install: Designed for easy installation as the first course of siding.
- Heavy weight: Heavy weight construction matches the insulated siding it supports.
- Long lengths: Convenient 12'6" lengths match most insulated siding panels.
- Mill finish: Supplied in Mill finish for a clean, unfinished edge behind the siding.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Mastic |
| Sell unit | 1 carton of starter strip |
| Product line | Mastic Structure Home Insulation System |
| Material | Vinyl siding accessory |
| Color / finish | Mill |
| Dimensions | 1/2" x 2-5/8" x 12'6" |
| Length | 12 ft. 6 in. |
| Intended use | Starter strip for insulated vinyl siding first course |
| Assembly | Easy installation |
Coverage & How Much You Need:
Each 12'6" strip covers 12.5 linear feet of wall base. Measure your wall perimeter in linear feet and divide by 12.5 to estimate the number of strips needed, adding a little extra for cuts and waste.
Fit and Compatibility:
Developed for Mastic Structure Home Insulation System insulated siding, with 12'6" lengths sized to match most insulated siding panels. Sold by the carton; siding panels are ordered separately.
Frequently Asked Questions (FAQ):
Q: What is included?
A: Starter strip in 1/2" x 2-5/8" x 12'6" lengths in Mill finish, sold by the carton.
Q: Which siding is it for?
A: It is developed specifically for Mastic Structure Home Insulation System insulated siding.
Q: How much does one strip cover?
A: Each strip covers 12.5 linear feet, and the lengths are chosen to match most insulated siding panel lengths.
Q: Where does it go?
A: It installs as the first course at the base of the wall, providing a secure starting edge for the insulated siding.
Q: Is it heavy duty?
A: Yes, it is made with heavy weight to match the insulated siding it supports.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
A properly installed starter strip is critical for insulated siding because the heavier panels need solid support and a level first course to keep subsequent courses straight. Snap a level chalk line at the bottom of the installation and fasten the strip along it before hanging panels. The 12'6" length minimizes joints compared with shorter stock.
Wear gloves and eye protection when cutting vinyl trim; edges and utility knife cuts can be sharp.
Start your Mastic Structure insulated siding job right with the Structure Starter Strip in 12'6" lengths.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
