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SKU: HSH-1042-1

SB Sound Barrier Felt 25 Acoustic Joist Strip for Insulating Sound for walls and floors In Stock

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£61.43
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£73.72 inc. VAT

Availability: 2-3 Working Days

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  • Buy 20 or above and get 3% off

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Free Delivery On Orders Over £500 Ex VAT
Free Delivery On Orders Over £600 Inc VAT

The SB-Felt 25 Joist Strips are a cost-effective alternative to composite floating flooring for timber joists in new build and refurbishment projects. These strips have hardboard slats that provide a firm and smooth surface for chipboard, OSB, or plywood T&G flooring boards. They can also be used as part of a sound insulation system between separating floors.

Designed for impact sound insulation between separating floors, the SB-Felt 25 Joist Strips are commonly used in both refurbishment and new build projects with floating floors over timber joists. They are compatible with a range of SB-Systems that exceed current Building Regulation requirements. The strips consist of a double layer of 10mm SB felt™ resilient layer factory stapled to hardboard slats.

Specifications

Application Directly over timber joists
Comprises 140mm x 50mm hardboard slats Double layer of 10mm SB felt™ resilient layer
Overall Strip Dimensions 25mm deep x 50mm wide
Weight per 1m 0.6 kg
Overall nominal thickness 25mm
Overall thickness in use 20-21 mm
Compatible SB-Systems SB-System 1, SB-System HF25, SB-System HF25 Advanced
Accessories SB-Seal 20 Perimeter Seal, SB-Bond Panel Adhesive

Performance

The SB-Felt 25 Joist Strips have been tested for their acoustic performance. The typical results are as follows:

Impact 50 dB
Airborne 58 dB
CTR 52 dB

*These results are based on SB-System HF25 Advanced test results incorporating SB-Panel 25 Resilient Joist Strips. Test data for field tests in compliance with Building Regulations Document E can be provided upon request.

Features and Benefits

  • Provides an alternative and economical joist treatment: Offers a cost-effective solution for impact sound insulation between separating floors.
  • Commonly used in refurbishment and new build projects: Ideal for both renovation projects and new constructions, especially for floating floors over timber joists.
  • Compatible with a range of SB-Systems: Works seamlessly with a variety of SB-Systems that surpass the current Building Regulation requirements.
  • Consists of a double layer of 10mm SB felt™ resilient layer: Features a robust construction with two layers of 10mm SB felt™ resilient layer factory stapled to hardboard slats.
  • Easy to install: Saves time and effort during construction, ensuring a hassle-free installation process.
  • Reduces impact noise transmission: Effectively minimizes impact noise transmission, creating a quieter and more comfortable living or working environment.
  • Provides excellent acoustic performance: Meets or exceeds industry standards for acoustic performance, guaranteeing optimal sound insulation.
  • Durable and long-lasting: Built to last, ensuring a reliable and long-lasting sound insulation solution.
  • Helps to comply with building regulations and acoustic requirements: Assists in meeting the necessary building regulations and acoustic requirements for sound insulation.
  • Wide range of applications: Suitable for various applications, including residential, commercial, and industrial buildings.
  • Additional unique feature: Incorporates a moisture-resistant barrier, preventing water damage and enhancing the longevity of the product.
  • Additional unique benefit: Enhances thermal insulation, contributing to energy efficiency and reducing heating and cooling costs.

Applications

The SB Felt 25 Acoustic Joist Strip has a wide range of applications in various industries. Some of the common applications include:

  • Soundproofing: The SB Felt 25 Acoustic Joist Strip is primarily used for soundproofing purposes. It helps in reducing the transmission of airborne and impact noise between floors in buildings. It is commonly used in residential, commercial, and industrial buildings to create a quieter and more comfortable environment.
  • Flooring: The joist strip can be used as an underlayment for flooring systems. It provides a cushioning effect and helps in reducing the noise caused by foot traffic. It is commonly used under laminate, hardwood, and engineered wood flooring.
  • Construction: The SB Felt 25 Acoustic Joist Strip is also used in construction projects for its soundproofing properties. It can be installed between walls, ceilings, and floors to minimize sound transmission and improve the acoustic performance of the building.
  • Home Theater: The joist strip is often used in home theater installations to create a more immersive audio experience. It helps in reducing sound leakage and improves the overall sound quality within the room.
  • Recording Studios: Recording studios require a high level of soundproofing to ensure optimal recording quality. The SB Felt 25 Acoustic Joist Strip is commonly used in recording studios to minimize sound transmission and create a controlled acoustic environment.

Installation

  1. Lay the strips end to end with hardboard pads facing upwards and staple them into the joist tops using 16mm staples. Do not fix through the hardboard pads. Install a length of SB-Felt 25 on the perimeter noggin at the end of the joist runs.
  2. Leave a 10-15mm expansion gap around all perimeters when planning the floor layout. Apply SB-Bond Panel Adhesive on each hardboard pad and lay the flooring boards on top in a broken bond fashion. Glue the flooring boards at all teegee joints board to board.
  3. Insert SB-Seal 20 Perimeter Seal into the perimeter expansion gap to ensure the floor floats freely from the walls for acoustic isolation.

Do not use any other fixings when fitting the floating floor as it can negatively affect performance. Fit skirting a minimum of two or three millimeters clear of the floor surface (PCT only).

Certifications

  • Building Regulations Document E compliant
  • Tested for acoustic performance

Equivalent/Related Products

  • SB-Felt 50 Joist Strips
  • SB-Felt 75 Joist Strips

Product Specifications

  • Brand: Sound Barrier - SB
  • Size Per Product (L x H x D): 1
  • Weight: Kg
  • Sales Unit coverage: m2

-Datasheet 1 -Datasheet 2 -Datasheet 3

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Orders under £250 Ex VAT

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Orders between £250 - £500* Ex VAT

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Orders over £500 Ex VAT

DELIVERY CHARGES & DISPATCH

We offer tiered delivery pricing to keep things clear and transparent. Delivery charges are calculated based on your order total before VAT and will be shown clearly at checkout. We are a TRADE SITE built for larger orders with keen pricing to match.

  1. Orders BELOW £250 ex. VAT (£300 inc. VAT) --- £70 ex. VAT (£84 inc. VAT) delivery charge
  2. Orders FROM £250 to £500 ex. VAT (£300 to £600 inc. VAT) --- £50 ex. VAT (£60 inc. VAT) delivery charge
  3. Orders OVER £500 ex. VAT (£600 inc. VAT) --- Free delivery

if the charge is higher than this or your post code is coastal / hard to get to, it could be out of our delivery zone. Get in touch and we can assist. There are parts of the UK that we don't deliver to and this will be marked at checkout. (N Ireland and Scotish Highlands). If this occurs upon your checkout, please reach out the team and we will see what we can do via a 3rd party supplier.

Standard Dispatch Times

  1. Most items are dispatched within 2 to 5 working days.
  2. Custom or made-to-order products may require additional lead time.
  3. We do not deliver on weekends.

Orders must be placed by 1:00 PM Monday to Thursday to be eligible for next-day dispatch (where applicable). Orders placed after 1:00 PM on Fridays will be processed the following Monday. All products have the availability days marked, so use this as a guide.

PREFERED DELIVERY TIMES*

We offer this service to alleviate confusion for you and reduce communication for us all. It gives us an idea on when you would like the order to be delivered.

It is NOT a garaunteed delivery date. Picking next day WILL NOT get you next day - unless you pay for it.

We understand scheduling of larger materials to your project is important, thus having your preference is very helpful for us. Please note this works in tandem with the availability of the product. We can NOT fulfill any orders before the avability days set on the product, even if the date insert tool allows it.

There may be situations where if specified a preference date is given, we may not always be able to deliver on that date. We WILL do our best to comunicate accurate delivery times via email after the order is placed, so no need to worry.

After you specified a date we will do our best to deliver on that date, you will be notified within 24-48 hours if we can not fill that day but will strive to get a slot as close as possible to that date. We do not deliver on weekends, so all orders specified with weekend delivery will be shifted to the week after.

ON THE DAY & PRODUCT EQUIVALENTS

If you need to reschedule your delivery, let us know as soon as possible. You’ll be notified of any changes via email or phone. We can not change delivery dates if you leave it within 24 hours of confirmed booked date.

Someone must be on-site to sign for and assist with unloading materials. All deliveries are kerbside only. Upon delivery:

  1. Inspect goods before signing.
  2. If goods are damaged or incorrect, refuse delivery and contact us immediately leave goods with the dirver: Call: 02039916406 or Email: sales@londonbuildingsupplies.co.uk

Important: Signing a delivery as “unchecked” means the goods are accepted in good condition.

Responsibility for goods transfers to you upon delivery. We reserve the right to charge a failed delivery fee if access is restricted for the vehicle specified on the order, Redelivery charges are £50 ex vat. Collection charges are £50 ex vat

Every transaction is recorded, and the delivery fees are determined on whether or not the recipient is ready to receive the package. This covers manual or automated offloading of heavy items. Offloading equipment, such as a tail lift or forklift, may be requested; however, there may be an additional fee if the site is difficult to access or we have a parking / access restrictions or the products are of considerable size..

We may be forced to offer an equivalent high-quality substitute product at no extra cost to our customer from time to time give the UK market conditions and stock supply in your area. They will be like for like and be chose by you with the liability on person orders if chosen on the option to accept yes is marked.

RESTRICTED ACCESS

Our suppliers reserve the right to refuse to make a delivery, if you have not informed either us or the supplier of any access restrictions at either the time of placing the order or 24 hours before the delivery.

Restricted access includes, but is not limited to: double yellow lines, a red route, narrow lanes, steep hills, low bridges, or width restricted

At The Time Of Placing The Purchase Or 24 Hours Before Delivery. Delivery Will Be Managed With Below Partners Or 3rd Party Fulfilment.

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SB Sound Barrier Felt 25 Acoustic Joist Strip for Insulating Sound for walls and floors

Availability: 2-3 Working Days

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