SKU:
Availability:
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
- 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.
- 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.
- 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
Orders under £200*
Orders between £200 - £400*
Orders over £400*
SERVICED LOCATIONS
We offer our customers free delivery* when you spend £400 plus vat or more. For orders less than £400 ex VAT there is a delivery charge of £75 ex VAT. This will be calculated within the checkout process. We only accept orders Monday through Friday. We do not provide delivery on weekends.
This is subject to change given the current COVID pandemic and lack of drivers servicing the UK. We will do our best to work with all orders that may be in affected areas.** Extra delivery charges may apply to orders in Scotland and the following postcodes**
Currently affected areas : IP, NR, CA, TD, CT, PO, SO, BH, DT, EX, PL, SP, TA, TQ, TR, LL, HR, SY **
This is currently due to the lack of availabily of drivers in these service areas and limited supply in these areas, thus a custom shipping service charge may apply. (£250). Please use the shipping calculor to give you an accurate shipping price based on your post code. We apologise in advance if this occurs for your order. Before placing an order please get in touch with the team and we will see if anything can be done for your order specifically.
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.
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 the order to be delivered. It is NOT a garaunteed delivery date. .
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. As it also linked to you delivery location, the closest warehouse logistics rotar, availability of the product and more. We have simply offered this to help our customers out, please be reasonable with your expectations in these difficult times. We WILL do our best to comunicate accurate delivery times via phone or 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 weekdays, our cut-off time for purchases is 1 p.m. Orders must be placed by 1 p.m. on Monday through Thursday to be delivered the next day if they are applicable for next day. For example, an order placed after 2 p.m. on Friday will be sent out on Monday afternoon (if it is not too late).
PRODUCT DELIVERY TIMES
The vast majority of our orders are dispatched within 2–5 working days. However, if you need a customized or bespoke item, things will take longer to arrive. Some goods are on allocation or short supply as a result of COVID 19 and the Brexit. We may be forced to offer an equivalent high-quality substitute product at no extra cost to our customer from time to time.
The delivery charge is applied for shipments to England. If you live in Scotland or Wales, one of our customer care specialists will contact. We do everything we can to make sure packages arrive on the date promised.
If you change the delivery date given at the time of purchase, you will be notified by email or phone. We reserve the right to charge a failed delivery fee if access is restricted for the car specified on the order, and a delivery cannot be completed.
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 the products are of considerable size..
On weekdays, our cut-off time for purchases is 1 p.m. Orders must be placed by 1 p.m. on Monday through Thursday to be delivered the next day if they are applicable for next day. For example, an order placed after 2 p.m. on Friday will be sent out on Monday afternoon (if it is not too late).
RESTRICTED ACCESS
If We Or A Supplier Attempt A Delivery And Customer Refuses To Deliver, We Are Not Liable For Any Losses Incurred As A Result Of Our Failure To Notify Us Or The Supplier About Any Access Limitations
At The Time Of Placing The Purchase Or 24 Hours Before Delivery. Delivery Will Be Managed With Below Partners Or 3rd Party Fulfilment.
