60mm Mayplas Timber Frame Cavity Barrier TCB 551 (75x90mm) - pack of 40
SKU: 96045263297

60mm Mayplas Timber Frame Cavity Barrier TCB 551 (75x90mm) - pack of 40

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Description

60mm Mayplas Timber Frame Cavity Barrier TCB 551 (75x90mm) - pack of 40Timber Frame Cavity Barrier 551 has been designed to prevent the passage of fire through concealed voids within the external fabric of a timber frame building. Euroclass A1 non combustible. FLEXI Edge ensures tight friction fit. High performing acoustic, thermal and fire protection properties. Will not slump, even if studs shrink. Zero Ozone Depletion Potential (ODP) and Global Warming Potential (GWP). For Cavity Size: up to 60mm (15mm compression

Timber Frame Cavity Barrier 551 has been designed to prevent the passage of fire through concealed voids within the external fabric of a timber frame building.

Euroclass A1 non-combustible.

FLEXI Edge ensures tight friction fit.

High-performing acoustic, thermal and fire protection properties.

Will not slump, even if studs shrink.

Zero Ozone Depletion Potential (ODP) and Global Warming Potential (GWP).

For Cavity Size: up to 60mm (15mm compression required)
Thickness: 75mm
Width: 90mm
Length: 1200m
Quantity: 40
Thermal Conductivity:  0.038 W/mK
R-Value: 2.47 m²K/W
Fire Rating: A1

Application:

The Barrier is suitable for both vertical and horizontal positioning to the edge of cavities, around penetrations, at separating compartment lines and to sub-divide cavities.

Certification:

Euroclass A1 fire rating / Tested and assessed for up to 60 minutes fire resistance (integrity and insulation) in accordance with BS 476: Part 20. 
ISO14001 - Environmental Management.
EN 13162 - Manufactured in accordance with.
A+ rating on BRE Green Guide

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SKU: 96045263297

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4.0 ★★★★★
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P
Verified Purchase
Peter
Dallas, US
★★★★★ 5
CODE is the book you should get.
Format: Paperback
The best book to enter the field. Grateful that Charles Petzold decided to write it, even happier this was one of the first books I picked up. Recommend to everyone wanting to become a programmer, or just interested in computers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
M
Verified Purchase
Michael Donoghue
San Leandro, US
★★★★★ 5
If you only buy one technical computer book, this is it
Format: Paperback
Disclaimer: I owned the first edition for years and read it a dozen times, mainly for pleasure since it’s not only informative but also just enjoyable to read. I’m a professional software architect and have dozens of textbooks on computer science and engineering so I’ve been around the block. This is the kind of book I would buy all for all my friends (if I had more than a couple) and family members (if they were even slightly into computers, which they aren’t sadly). Petzold does an exceptional job at describing digital logic and guides you through building a conceptual CPU from very first principles. I think his bottom up approach is the way to go and has helped me understand complex topics in an extremely simple way. When I’m not reading fiction, this is my go to bedtime reading. The second edition has about 100 more pages than the first and some content has been completely reworked and it’s great. If you ever had even a passing interest in knowing how computers work at a very fundamental level, get this book!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2023
Y
Verified Purchase
Yura
Whiting, US
★★★★★ 4
First programmer?
Format: Paperback
As an ardent reader of the past 1st edition, I was fairly excited to get the latest version. That is, until I encountered the history chapter of the new edition. For one thing, what I do NOT understand in this second edition is the newly added description of August Ada Byron (countless of Lovelace). The author claims it was Babbage who was the first programmer to design the engines, not Ada. I am not trying to start a futile argument here about who has more or fewer contributions, etc. What I am trying to assert here is that it is undisputed that Ada (unless the new evidence arises) left *the very first demonstration* of what this seemingly imaginary machine, which didn't even physically exist, was capable of through her program. Because Babbage designed the engine itself, that doesn't automatically put him in the position of a programmer (despite Babbage being a brilliant engineer/scientist and may have had a simple or detailed program in his mind). However, it was Ada who gave a definite touch to programming concepts that ultimately led to modern-day programming. Ada deserves more recognition than a mere "tutorial writer," and she is certainly entitled to the title she deserves. Other than that, like the previous edition, this book is a must-read for people who are from related/unrelated fields. I always loved the 1st edition, and I would do too with the 2nd. Still, I think history should always be approached with more care, particularly if matters have potential controversies.
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Reviewed in the United States on January 6, 2023
B
Verified Purchase
Ben Fleury
Los Angeles, US
★★★★★ 5
One of the few books worth your time
Format: Paperback
If you want to learn computers, start here. Learning from a historical perspective removes complexity of trying to start with say GPUs - you learn just like computer engineers did, incrementally.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
K
Verified Purchase
Kevin
Carnegie, US
★★★★★ 5
An absolutely brilliant book
Format: Paperback
This is an amazing book for the right kind of reader. It's a lot like Euclid's Elements but for computers as it leads the reader through designing a computer from first principles and builds to the point of creating software and adding peripherals. It's an amazingly clear but slightly challenging read. I have given this book as a gift many many times. It's an absolute classic in my opinion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2025

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