Glass wool blanket
![]() |
Steel structure glass wool belongs to a category of glass fibre and is an artificial inorganic fibre. Quartz sand, limestone, dolomite and other natural ore are selected as the main raw materials, with soda ash, borax and other chemical raw materials used to fuse into glass fibre or glass wool. In the ablation or vapourised state, with the help of external force, the blown product is thrown into flocculent fine fibres. The fibres are three-dimensionally intersected, surrounded by each other, with many fine voids between. Therefore, glass wool insulation can be regarded as a porous material, with outstanding thermal insulation and sound absorption functions.
Glass wool blanket is a sheet product with a certain strength, achieved after curing. It continues to function and can withstand high or low temperature environments. It is mainly used for the construction of interior wall compartments, ceilings, ducts, sound absorption and noise reduction in computer rooms, and metal ceilings.
With the right protective equipment covering the skin, mouth and eyes, this material can be cut easily during construction. It is mainly used in the construction of indoor, noise reduction systems, transportation, refrigeration equipment, home appliances to reduce vibration, absorb sound and reduce noise.
Glass wool roll is manufactured using advanced production technology to process the board and roll felt products. It has a good ability to resist heat and reduce noise transfer. It is often used in boilers, reactors, tanks, pipes, high-temperature workshops and other high-temperature environments and thermal insulation materials in the power, chemical, and pharmaceutical industries.
When installing or unwinding, ensure that it is facing up. Lay the glass wool roll felt on the other side of the eaves. Leave the same 20 cm roll felt, and fix it on the outer-purlin with special clamps or double-sided tape. The rolls should be connected together by binding with a stapler on the veneer burr.
Each product has different shapes and specifications. People will consider different fields of application and the shape of the products produced. Some are curved, some are straight and so on. There are many specifications of glass wool board, and people often cut it according to their different needs. The construction process is very simple, and it is possible to cut into anything.
Some misconceptions about glass fibre or glass wool are that it contains asbestos and is bad for health and the environment. Whilst glass fibre does contain fine strands and sometimes borax, it does not contain asbestos. Glass fibre or wool does take significant energy in its manufacturing process, but as efficiency is increased the amount of related emission will also decrease and as an insulation product it acts to save energy through the loss of heat or coolth in use. Furthermore glass wool can be made from recycled glass and once made the wool is also 100% recyclable, though this will depend on contamination and purity.
Once installed, sealed and settled, glass fibre or wool is considered safe and resistant to fire. However when being rolled out, cut and installed the fibre can cause skin irritation and the dust should not be inhaled, therefore as when working with many materials on or off site, the correct protective equipment should be used to avoid any potential health hazards and professional guidance should be sought.
[edit] Related articles on Designing Buildings
- Acoustic insulation.
- Acoustic insulation market.
- Advice for External Wall Insulation (EWI) systems with a render or brick-slip finish.
- Aerogel insulation for buildings.
- BR 135 Fire Performance of external thermal insulation for walls of multi-storey buildings.
- BREEAM Insulation.
- Cavity wall insulation.
- Celotex RS5000 PIR insulation.
- Designing out unintended consequences when applying solid wall insulation FB 79.
- Domestic floors: Part 1: Construction, insulation and damp proofing.
- Expanding foam.
- External wall insulation.
- Floor insulation.
- Flue insulation and air tightness requirements.
- Green Homes Grant vouchers extended.
- Icynene spray foam insulation.
- Insulating concrete form.
- Insulation envelope.
- Insulation for ground floors.
- Loft insulation ruling.
- PA ratio for insulation.
- Phenolic foam insulation.
- Reducing thermal bridging at junctions when designing and installing solid wall insulation FB 61.
- Roof insulation.
- Solid wall insulation.
- Solid Wall Insulation: Unlocking demand and driving up standards.
- Sound insulation in buildings.
- Sound insulation in dwellings Part 2: New-build (GG 83-2).
- Sound insulation in dwellings: Part 1: An introduction (GG 83-1).
- Sound insulation in dwellings: Part 3: Material change of use (conversions) (GG 83-3).
- Specifying insulation for inverted roofs.
- Ten facts about Expanded Polystyrene (EPS) insulation to help specifiers.
- Thermal insulation for buildings.
- Transparent insulation.
- Types of insulation.
- Understanding Insulation and the Part It Plays in Building Regulations.
- Wall insulation and moisture risk.
- Wood and insulation.
Featured articles and news
BSRIA Statutory Compliance Inspection Checklist
BG80/2025 now significantly updated to include requirements related to important changes in legislation.
Shortlist for the 2025 Roofscape Design Awards
Talent and innovation showcase announcement from the trussed rafter industry.
OpenUSD possibilities: Look before you leap
Being ready for the OpenUSD solutions set to transform architecture and design.
Global Asbestos Awareness Week 2025
Highlighting the continuing threat to trades persons.
Retrofit of Buildings, a CIOB Technical Publication
Now available in Arabic and Chinese aswell as English.
The context, schemes, standards, roles and relevance of the Building Safety Act.
Retrofit 25 – What's Stopping Us?
Exhibition Opens at The Building Centre.
Types of work to existing buildings
A simple circular economy wiki breakdown with further links.
A threat to the creativity that makes London special.
How can digital twins boost profitability within construction?
The smart construction dashboard, as-built data and site changes forming an accurate digital twin.
Unlocking surplus public defence land and more to speed up the delivery of housing.
The Planning and Infrastructure Bill
An outline of the bill with a mix of reactions on potential impacts from IHBC, CIEEM, CIC, ACE and EIC.
Farnborough College Unveils its Half-house for Sustainable Construction Training.
Spring Statement 2025 with reactions from industry
Confirming previously announced funding, and welfare changes amid adjusted growth forecast.
Scottish Government responds to Grenfell report
As fund for unsafe cladding assessments is launched.
CLC and BSR process map for HRB approvals
One of the initial outputs of their weekly BSR meetings.
Building Safety Levy technical consultation response
Details of the planned levy now due in 2026.
Great British Energy install solar on school and NHS sites
200 schools and 200 NHS sites to get solar systems, as first project of the newly formed government initiative.
600 million for 60,000 more skilled construction workers
Announced by Treasury ahead of the Spring Statement.