What type of nails should be used for fixing wooden shingles?

Rust-proof nails, such as hot-dip galvanized iron, copper, or zinc nails, must be used to prevent corrosion and timber decay.

Is preservative treatment of timber shingles mandatory?

Yes, shingles must be treated with appropriate wood preservatives before installation to enhance longevity and resistance against insects and fungi.

What is the recommended minimum slope for a wooden shingle roof?

The roof pitch should generally not be less than 30 degrees to ensure effective water run-off.

IS 2700

: 1987

Code of practice for roofing with wooden shingles

CurrentSpecializedCode of PracticeArchitectural · Building Construction Practices incl. Painting, Varnishing

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This code covers the materials, dimensions, and methods of laying wooden shingles for roofing purposes. It provides guidelines on roof pitching, batten spacing, preservative treatments for timber, and proper nailing techniques to ensure a weather-tight and durable sloped roof, particularly in hilly or timber-rich regions.

Code of practice for roofing with wooden shingles

Quick Reference Values

recommended minimum roof pitch30 degrees

standard lengths of shingles300 mm, 380 mm, or 450 mm

typical thickness at butt end10 mm to 15 mm

moisture content limitNot exceeding 15% at the time of laying

nail penetration into battenMinimum 15 mm

Practical Notes

Ensure timber used for shingles is properly seasoned and pressure-treated with preservatives as per IS 401 to prevent decay and termite attacks.

Only use rust-proof nails (hot-dip galvanized, copper, or zinc-coated) to prevent the nails from rusting and staining or rotting the surrounding wood.

Adequate roof pitch must be maintained to allow rapid shedding of rainwater and snow to avoid water stagnation and ingress.