Guide
Product Guide Chelsea Building Products Siding

Chelsea Building Products Everlast Rigid PVC Starter Strip

The Everlast Rigid PVC Starter Strip replaces the old steel starter strips that contractors used to fight with. At 12.5 feet per strip and 250 lineal feet per box, it provides predictable coverage for material ordering. The switch to rigid PVC brings better corrosion resistance and thermal expansion compatibility with composite siding systems — two problems that plagued steel strips in Montana’s freeze-thaw climate.

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Technical Specifications and Installation Requirements

Each box contains 20 strips at 12 feet 6 inches length, totaling 250 lineal feet of coverage and weighing 64.6 pounds. The rigid PVC construction matters because it maintains its shape during temperature swings, unlike steel that can telegraph expansion stress into the siding above.

SpecificationValue
Strip Length12.5 ft
Coverage per Box250 lineal feet
Quantity per Box20 strips
Total Weight64.6 lbs per box
MaterialRigid PVC

Installation starts with chalking a level line 3-1/2 inches above the lowest point of the wall. Fasten tightly through nail slots every other slot at minimum. Leave a 1/2 inch expansion gap between individual starter strip sections and maintain 1 to 4 inch clearance from corner trim or accessory nailing flanges.

Installation errors — specifically failure to leave expansion gaps — can lead to siding warping. That half-inch gap between strips isn’t optional. Montana sees 100+ freeze-thaw cycles annually in most valleys, and thermal movement adds up fast.

Material Performance and System Compatibility

The rigid PVC starter strip offers better corrosion resistance and thermal expansion compatibility compared to steel alternatives. The material resists water, warp, swell, rot, and impact while providing UV stability for long-term performance.

Contractors value the rigidity and ease of installation. The PVC won’t rust like steel strips do when exposed to snowmelt and spring moisture. Pest and termite resistance adds value for rural Montana installations where carpenter ants and other wood-destroying insects create ongoing maintenance headaches.

The starter strip works with both Everlast 4.5” Narrow Lap Siding and 6-7/8” Standard Lap Siding profiles, plus Everlast J-Channel, Perimeter Trim, and Corner Posts. The system has been tested for Class A Fire Rating and Wind Load requirements.

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FAQs

Q: Why did Chelsea switch from steel to PVC starter strips?

The rigid PVC starter strip replaced the previous steel starter strip recommendation in modern Everlast installation guides (2020+). Advantages include better corrosion resistance and thermal expansion compatibility with composite siding planks.

Q: What happens if contractors skip the expansion gaps?

Installation errors like failure to leave expansion gaps can lead to siding warping. Proper installation requires 1/2 inch gaps between starter strip sections and 1-4 inch clearance from corner trim.

Q: How much coverage do contractors get per box?

Each box contains 20 strips at 12.5 feet each, providing 250 lineal feet total coverage at 64.6 pounds total weight.

Q: Does the warranty transfer to new owners?

Yes, the Limited Lifetime Warranty transfers to subsequent owners as a 50-year prorated warranty. The warranty covers manufacturing defects and performance failures.

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