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Roof Shikkui (Paste)

Shirokabe Roof Shikkui

Contains oil

Cooked Binder

F⭐︎⭐︎⭐︎⭐︎

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Application Manual
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Product Specifications

A roof shikkui specifically formulated for use on Men-do and Suzukuchi roofs. It is a blended mixture containing seaweed-based adhesive, shell ash, oil, and aggregate, and can be applied thickly as an intermediate coat. Small-pack sizes are also available for touch-ups.

Main Component

Salt-calcined lime from Tagawa, shell ash, fine aggregate, seaweed, plant fibers, vegetable oil, and other ingredients

Packaging

20 kg white putty-like product / plastic bag

(Small bags: 4 kg poly bags, 6 bags per case)

Recommended Uses

Wall Coating, Roof, Sculpture, Bellows-Style Painting

Application Methods and Standards

Plaster Finish

Technical Data

Standard Coverage

2.5 m² to 5 m²

(Small bags: 0.5 m² to 1 m²)

Standard Coating Thickness

2.5 mm to 5 mm

Net Mass / Suggested Water Addition

20 kg

Suitable Substrates

Mortar and Concrete

Plaster Walls

Earthen Wall

Sand-plastered wall

Specialized Primer

ソトカベース

Installation Precautions
  • When mixing in sand, using too much sand will result in insufficient strength, so please observe the specified amount.
  • Extended storage does not affect quality; however, as a general guideline, for material that is six months or older since manufacture, perform a test application first. If water retention has decreased, add binder (powdered Gloiopeltis seaweed).
  • Always apply a sealer beforehand on earthen walls, substrates with poor adhesion, or glazed roof tiles.
  • Roof shikkui work performed in autumn or winter is prone to frost damage, which can cause poor curing and flaking, so please avoid construction during this period. (This applies even on days that are warm during daytime, if frost occurs during the season.)
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Frequently Asked Questions

Q.

What are the characteristics of the “Shirokabe Roof Shikkui”?

A.

This shikkui for roofs was developed for repairing tile roof joints and for roof construction. It uses traditional “cooked binder” and is pre-mixed with oil, providing waterproofing capabilities and excellent workability that can withstand harsh outdoor conditions.

Q.

What is the difference between this and “Shirokabe Black Shikkui”?

A.

The main differences are “form (paste or powder)” and “color.”"Shirokabe Roof Shikkui" is a ready-to-use paste (white-based) that already contains oil, whereas "Black Shikkui" is a powdered black plaster. You can choose between them depending on the application, desired finish color, and on-site workability.