Glass Wool Batts and Blankets

Batts for framed assemblies

Glass wool batts suit framed assemblies and cavities, where pieces are fitted between members. A batt enquiry should state the frame or cavity it must fit, including the spacing the batts must fill and the assembly they sit within. Batts are the natural choice where the assembly is framed, such as a wall or partition frame, and the insulation must sit within the frame rather than over a flat surface.

Batts also suit acoustic work within partitions, where the insulation sits inside the partition build-up. An enquiry with an acoustic element should describe the partition and the setting together, so that the answer can address that partition rather than offering a general statement. The acoustic guide discusses partition questions in more detail for buyers who want to test a choice before enquiring.

Blankets for larger surfaces

Glass wool blankets suit larger surfaces and wraps, where a flexible layer must follow a shape or cover an area. A blanket enquiry should state the area to be covered and the shape the blanket must follow, since those facts decide how the blanket is cut, laid and fixed. Blankets are the natural choice where a batt would be too small for the area, or where a single flexible layer must wrap a duct, vessel or uneven surface.

Blankets and batts are often used together in one job, with batts in framed areas and blankets over larger or wrapped surfaces. An enquiry that covers both should name both forms and the areas each must cover, so that the quantities can be matched form by form. That form-by-form statement is the most useful habit a buyer can bring to a glass wool enquiry.

Boards and pipe sections

Glass wool boards suit flat assemblies where a firm layer is laid against a surface, such as an envelope or equipment face. A board enquiry should state the surface, its size and how the board will be held in place. Glass wool pipe sections suit pipework, where insulation must close around a pipe and follow its run; a pipe section enquiry should state the pipe sizes and the system the pipes belong to.

The pipe guide covers pipe sections across routes, and a buyer with pipework spanning more than one route should use that guide before enquiring. The heating and cooling guide covers duct and equipment questions, which often involve blankets and boards together. Reading those guides before the enquiry will make the enquiry itself shorter and more direct.

Putting a glass wool order together

A complete glass wool enquiry names the setting, the forms and the quantities, form by form. It describes the frames, surfaces or pipework involved, and it asks about quantity terms, timing, trade terms, payment method and documents for the items named. If envelope, acoustic or heating and cooling behaviour is part of the brief, it states the setting and the requirement together.

For building envelopes, glass wool batts and blankets cover framed walls and larger envelope areas, with boards for flat envelope faces and pipe sections where envelope services pass through. An envelope enquiry should name the envelope part, the form that must cover it and the system the services belong to, so that each form can be matched to its area. For mechanical systems, blankets and boards cover ducts and equipment faces, while pipe sections cover the pipework that serves those systems, and an enquiry that names the duct, the equipment face and the pipe run together will receive an answer matched part by part.

Documents follow the same order: items first, documents second. The general wording is that certificates are available upon request, and any document question is answered for named items in the enquiry. An enquiry that follows that order will produce answers that can be checked against the order.